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IKEA

Inter IKEA Systems B.V., trading as IKEA, is a Swedish multinational conglomerate that designs and sells ready-to-assemble furniture, kitchen appliances, decoration, home accessories, and various other goods and home services. Started in 1943 by Ingvar Kamprad and currently legally headquartered in the Netherlands, IKEA has been the world's largest furniture retailer since 2008. The brand used by the group is derived from an acronym that consists of the founder's (Ingvar Kamprad) initials, and those of Elmtaryd, the family farm where he was born, and the nearby village Agunnaryd (his hometown in Småland, southern Sweden).

The group is primarily known for its modernist furniture designs, simple approach to interior design, and its immersive shopping concept, based around decorated room settings within big-box stores, where customers can interact with products onsite. In addition, the firm is known for its attention to cost control and continuous product development, notably, the ready-to-assemble model of furniture sales, and other elements which have allowed IKEA to establish lower prices than its competitors.

, there are 482 IKEA stores operating in 63 countries and in fiscal year 2018, €38.8billion (US$billion) worth of IKEA goods were sold. For multiple reasons, including lowering taxes payable, IKEA uses a complicated corporate structure. Within this structure, all IKEA stores are operated under franchise from Inter IKEA Systems B.V. which handles branding, design, manufacturing, and supply. Another part of the IKEA group, Ingka Group, operates the majority of IKEA stores as a franchisee and pays royalties to Inter IKEA Systems B.V. Some IKEA stores are also operated by independent franchises. The IKEA website contains about 12,000 products and there were over 2.1billion visitors to IKEA's websites in the year from September 2015 to August 2016.

History
[[File:Map of IKEA stores.svg|thumb|300x300px|Map of countries with IKEA stores

Legend: {{legend|#006AA7|Current market locations}} {{legend|#FECC00|Future market locations}} {{legend|#c50b1e|Former market locations}} {{legend|#C0C0C0|No current or planned market locations}}]]

In 1943, then-17-year-old Ingvar Kamprad founded IKEA as a mail-order sales business, and began to sell furniture five years later. The first store was opened in Älmhult, Småland, in 1958, under the name Möbel-IKÉA (Möbel means "furniture" in Swedish). The first stores outside Sweden were opened in Norway (1963) and Denmark (1969). The stores spread to other parts of Europe in the 1970s, with the first store outside Scandinavia opening in Switzerland (1973), followed by West Germany (1974), Japan (1974), Australia, Hong Kong (1975), Canada (1976), Singapore and the Netherlands (1978). IKEA further expanded in the 1980s, opening stores in countries such as France and Spain (1981), Belgium (1984), the United States (1985), the United Kingdom (1987), and Italy (1989). Germany, with 55 stores, is IKEA's biggest market, followed by the United States, with 52 stores.

IKEA entered Latin America in February 2010, opening in the Dominican Republic. As for the region's largest markets, on 8 April 2021, a store was opened in Mexico City. In August 2018, IKEA opened its first store in India, in Hyderabad. There are now stores in Bengaluru and Mumbai.

In November 2021, IKEA opened its largest store in the world, measuring 65000 sqm, in the Philippines at the Mall of Asia Complex in Pasay City.

In March 2022, IKEA announced the closing of all 17 stores in Russia, resulting from the 2022 Russian invasion of Ukraine. Because of the ongoing war and unimproved situation in Russia, IKEA said on 15 June that it would sell factories, close offices and reduce its work force. Later it became known that IKEA does not plan to sell its business, but expected to return to Russia within two years. By October 2022, IKEA laid off about 10,000 Russian employees.

In September 2023, the chain of 14 supermarkets, then owned by Ingka, was bought by the Russian Gazprombank.

IKEA was hit hard by COVID-19 because of lockdowns in various countries, like in the UK and Canada. Because demand had fallen, its annual catalogue ceased publication after 70 years in print. The prices of their products have risen significantly in 2022 because of rising costs and inflation. In April 2022, IKEA has shut down one of its stores in Guiyang when sales took a significant hit from the pandemic. Because of strict COVID-19 lockdowns in China, IKEA is considering closing another store in Shanghai by July 2022. IKEA is also facing stock shortages and shipping problems that may continue until the end of 2022.

On 10 August 2022, IKEA opened its first store in Chile, the first store in South America. Another store opened in Colombia in September 2023 in Bogotá, soon to be followed by a store in Peru.

First store opening in each location
• 1958, Sweden

• 1963, Norway

• 1969, Denmark

• 1973, Switzerland

• 1974, Germany, Japan

• 1975, Australia, Hong Kong

• 1976, Canada

• 1977, Austria

• 1978, Netherlands, Singapore

• 1980, Spain

• 1981, France, Iceland

• 1983, Saudi Arabia

• 1984, Belgium, Kuwait

• 1985, United States

• 1987, United Kingdom

• 1989, Italy

• 1990, Hungary, Poland

• 1991, Czech Republic, Serbia, United Arab Emirates

• 1992, Slovakia

• 1994, Taiwan

• 1996, Finland, Malaysia

• 1998, China

• 2000, Russia

• 2001, Greece, Israel

• 2004, Portugal

• 2005, Turkey

• 2007, Cyprus, Romania

• 2008, Ireland

• 2010, Dominican Republic

• 2011, Bulgaria, Thailand

• 2012, Macau

• 2013, Lithuania, Puerto Rico, Egypt, Qatar

• 2014, Croatia, Indonesia, Jordan, South Korea

• 2016, Morocco

• 2017, Serbia

• 2018, Bahrain, India, Latvia

• 2019, Estonia

• 2020, Ukraine

• 2021, Mexico, Philippines, Slovenia

• 2022, Chile, Oman

• 2023, Colombia

Traditional store layout
IKEA stores are typically blue buildings with yellow accents (also Sweden's national colours). They are often designed in a one-way layout, leading customers counter-clockwise along what IKEA calls "the long natural way" designed to encourage the customer to see the store in its entirety (as opposed to a traditional retail store, which allows a customer to go directly to the section where the desired goods and services are displayed). There are often shortcuts to other parts of the showroom.

The sequence first involves going through the furniture showrooms making note of selected items. The showroom usually consists of simulated room settings where customers can see the actual furniture in use, e.g.: a living-room with a sofa, a TV set, a bookcase and a dining table, accessorized with plants, cushions, rugs, lamps, plates, glasses and cutlery. Showroom sections are usually displayed in the order of the rooms of a house: living rooms, dining rooms, kitchens, bedrooms, kids' rooms. The customer then collects a shopping cart and proceeds to an open-shelf "Market Hall" warehouse for smaller items. Lastly, the self-service furniture warehouse stores the showroom products in flat pack form for the customer to collect the ones previously noted. Sometimes, they are directed to collect products from an external warehouse on the same site or at a site nearby after purchase. Finally, customers pay for their products at a cash register. Not all furniture is stocked at the store level, such as particular sofa colours needing to be shipped from a warehouse to the customer's home or the store. Most stores follow the layout of having the showroom upstairs with the marketplace and self-service warehouse downstairs. Some stores are single level, while others have separate warehouses to allow more stock to be kept on-site. Single-level stores are found predominantly in areas where the cost of land would be less than the cost of building a 2-level store. Some stores have dual-level warehouses with machine-controlled silos to allow large quantities of stock to be accessed throughout the selling day.

Most IKEA stores offer an "as-is" or "bargain corner" (recently rebranded as "circular hub") area at the end of the warehouse, just before the cash registers. Returned, damaged, and formerly showcased products are displayed here and sold with a significant discount.

In March 2022, IKEA swiftly exited the Russian market, due to Russia's invasion of Ukraine, leading to a surplus of items that were earmarked for the Russian market in IKEA's warehouses. To get rid of these items quickly, IKEA has been reselling these in a number of non-Russian IKEA stores near the bargain corner at a discount.

Alternative smaller store formats
The majority of IKEA stores are located outside of city centres, primarily because of land cost and traffic access. Smaller store formats have been unsuccessfully tested in the past (the "midi" concept in the early 1990s, which was tested in Ottawa and Heerlen with 9,300 m2, or a "boutique" shop in Manhattan).

New formats for full-size stores
A new format for a full-size, city centre store was introduced with the opening of the Manchester store, situated in Ashton-under-Lyne in 2006. Another store, in Coventry, opened in December 2007. The store had seven floors and a different flow from other IKEA stores; however, it closed down in 2020 due to the site being deemed unsuitable for future business. IKEA's Southampton store that opened in February 2009 is also in the city centre and built in an urban style similar to the Coventry store. IKEA built these stores in response to UK government restrictions on large retail establishment outside city centres.

Adaptation to Japanese market
Japan was another market where IKEA performed badly, exited the market completely and then re-entered with an alternative store design and layout with which it finally found success. IKEA entered the Japanese market in 1974 through a franchise arrangement with a local partner, only to withdraw in failure in 1986. Japan was one of the first markets outside its original core European market. Despite Japan being the then second largest economy in the world, IKEA did not adapt its store layout strategy to the Japanese consumer. Japanese consumers did not have a culture of DIY furniture assembly, and many in the early days had no way to haul flat-packs home to their small apartments. Nor did the store layouts familiar to European customers initially make sense to Japanese consumers, so prior to re-entering the Japanese market in 2006, IKEA management did extensive local market research in more effective store layouts. One area of local adaptation was the room displays common to every IKEA store worldwide. Rather than just replicate a European room layout, the Japan management was careful to set up room displays more closely resembling Japanese apartment rooms, such as one for "a typical Japanese teenage boy who likes baseball and computer games".

Inner-city stores
IKEA adapted its store location and services to the 'inner-city' format for expansion in China, unlike other countries where IKEA stores for economic and planning restriction reasons tends to be just outside city centres due to planning restrictions. In China, planning restrictions are less of an issue due to the lack of cars for much of its customer base. Accordingly, in store design alternatives, IKEA has had to offer store locations and formats closer to public transportation. The store design alternative thinking and strategy in China has been to locate stores to facilitate access for non-car owning customers. In some locations in China, IKEA stores can be found not in the usual suburban or near airport locations like other countries, but rather places such as downtown shopping centres with a 'mini-IKEA' store to attract shoppers. One store design alternative trend IKEA has implemented has been 'pop-up' stores along social media platforms in their advertising strategy, for the first-time as a company, to reach new customers demographics while still reinforcing its global brand locally in China.

Small sized stores
In Hong Kong, where shop space is limited and costly, IKEA has opened 4 stores, all in multi-storey commercial buildings. They are smaller than other IKEA stores but large by Hong Kong standards. In addition to tailoring store sizes for specific countries, IKEA alters the sizes of products to accommodate cultural differences. In 2015, IKEA announced it would attempt smaller store design at locations in Canada. IKEA claimed this new model would allow them to expand quickly into new markets rather than spending years opening a full-size store.

In 2020, IKEA opened at Al Wahda Mall in Abu Dhabi, United Arab Emirates, which, at 2137 m2, was one of the smallest IKEA stores to-date. The company also opened at 360 Mall in Kuwait and in Harajuku, a trendy part of Tokyo, that same year. The size of the Kuwaiti 360 Mall store was slightly larger than Al Wahda's (despite bringing a similar concept), at 3000 m2, built as an extension of the mall. As for IKEA Harajuku, the 2500 m2, 7-storey store houses the chain's first and only konbini concept. In 2021, IKEA opened another one of its smallest stores, located at the JEM Mall in Jurong East, Singapore. Replacing liquidated department store Robinsons, IKEA Jurong is only 6500 m2, encompassing three levels; it was the first location in Southeast Asia that did not provide the "Market Hall" warehouse in its store. Also during 2021, IKEA opened a small-store-format location on Bali, Indonesia, replacing the liquidated former Giant hypermarket. IKEA Bali is dubbed "Customer Meeting Point", and is the smallest store to open thus far, at 1200 m2. In 2022, another smaller store was opened inside Livat Hammersmith, London, at 4600 m2,  followed by a 9400 m2 store inside Mall Taman Anggrek, Jakarta, which was opened on 7 April 2022.

Furniture and homeware

Rather than being sold pre-assembled, much of IKEA's furniture is designed to be assembled by the customer. The company claims that this helps reduce costs and use of packaging by not shipping air; the volume of a bookcase, for example, is considerably less if it is shipped unassembled rather than assembled. This is also more practical for European customers using public transport, because flat packs can be more easily carried.

IKEA contends that it has been a pioneering force in sustainable approaches to mass consumer culture. Kamprad calls this "democratic design", meaning that the company applies an integrated approach to manufacturing and design (see also environmental design). In response to the explosion of human population and material expectations in the 20th and 21st centuries, the company implements economies of scale, capturing material streams and creating manufacturing processes that hold costs and resource use down, such as the extensive use of medium-density fibreboard ("MDF"), also called "particle board".

Notable items of IKEA furniture include the Poäng armchair, the Billy bookcase and the Klippan sofa, all of which have sold by the tens of millions since the late 1970s and early 1980s.

The IKEA and LEGO brands teamed up to create a range of simple storage solutions for children and adults.

In June 2021, IKEA Canada unveiled a series of 10 "Love Seats" inspired by different Pride flags, created by four LGBTQ designers.

Furniture and product naming
IKEA products are identified by one-word (occasionally, two-word) names, predominantly in the Swedish language (or otherwise Scandinavian in-origin). With few exceptions, most product names are based on a special naming system developed by the company. The company founder Kamprad was dyslexic, and found that naming the furniture with proper names and words, rather than a long product code, made the products easier to identify and remember.

A number of IKEA's products bearing Swedish names have (or have had) pronunciations that are humorous to some and offensive to others (but no less "lost-in-translation"), by not only English-speakers but speakers of many different languages. At times, this product-identification has resulted in certain names being changed, or withdrawn completely from certain markets. More often than not, this confusion is simply a result of the Swedish language not being executed correctly, let alone understood, by the reader; nonetheless, this has resulted in potentially "naughty"—or even gravely offensive—connotations, depending on the area in question. Notable examples (for English-speakers) include a since-discontinued (2013) computer desk called jerker (referring to "the jerks" or "jerks"), a foliar plant spray called fukta ("moisten"), a workbench called fartfull ("speedy", "quick"), and a table called lyckhem (pronounced roughly as "look-em"), meaning "bliss" or a "happy home".

Due to several products being named after real places, some locales have ended-up sharing names with objects considered generally unpleasant, such as a toilet brush being named after the lake of Bolmen, or a rubbish bin named after the Norwegian village of Tofte. In November 2021, VisitSweden.com launched a jocular campaign named "Discover the Originals", which invited tourists to visit the physical locations which have received such unfortunate associations with IKEA products.

Design services

During the COVID-19 pandemic in 2020, to facilitate social distancing between customers and accommodate the increased volume of customers who were booking IKEA design consultation services, IKEA stores in Saudi Arabia and Bahrain improved their design consulting process by piloting Ombori's paperless queue management system for the brand.

In March 2021, IKEA launched IKEA Studio in partnership with Apple Inc., an app enabling customers to design full-scale rooms with IKEA furniture using augmented reality on an iPhone.

Smart home
In 2016, IKEA started a move into the smart home business. The IKEA TRÅDFRI smart lighting kit was one of the first ranges signalling this change. IKEA's media team has confirmed that smart home project will be a big move. They have also started a partnership with Philips Hue. The wireless charging furniture, integrating wireless Qi charging into everyday furniture, is another strategy for the smart home business.

A collaboration to build Sonos smart speaker technology into furniture sold by IKEA was announced in December 2017. The first products resulting from the collaboration launched in August 2019.

Under the product name SYMFONISK, IKEA and Sonos have made two distinct wireless speakers that integrate with existing Sonos households or can be used to start with the Sonos-ecosystem, one that's also a lamp and another that's a more traditional looking bookshelf speaker. Both products as well as accessories for the purpose of mounting the bookshelf speakers have gone on sale worldwide on 1 August.

From the start, IKEA SYMFONISK can only be controlled from the Sonos app, but IKEA added support for the speakers in their own Home Smart app to be paired with scenes that control both the lights, air purifiers, smart plugs and smart blinds together with the speakers.

Houses and flats
IKEA has also expanded its product base to include flat-pack houses and apartments, in an effort to cut prices involved in a first-time buyer's home. The IKEA product, named BoKlok was launched in Sweden in 1996 in a joint venture with Skanska. Now working in the Nordic countries and in the UK, sites confirmed in England include London, Ashton-under-Lyne, Leeds, Gateshead, Warrington, Bristol and Liverpool.

Solar PV systems
At the end of September 2013, the company announced that solar panel packages, so-called "residential kits", for houses will be sold at 17 UK stores by mid-2014. The decision followed a successful pilot project at the Lakeside IKEA store, whereby one photovoltaic system was sold almost every day. The solar CIGS panels are manufactured by Solibro, a German-based subsidiary of the Chinese company Hanergy. By the end of 2014, IKEA began to sell Solibro's solar residential kits in the Netherlands and in Switzerland. In November 2015, IKEA ended its contract with Hanergy and in April 2016 started working with Solarcentury to sell solar panels in the United Kingdom. The deal would allow customers to be able to order panels online and at three stores before being expanded to all United Kingdom stores by the end of summer.

Furniture rental
In April 2019, the company announced that it would begin test marketing a new concept, renting furniture to customers. One of the motivating factors was that inexpensive IKEA products were viewed as "disposable" and often ended up being scrapped after a few years of use. This was at a time when especially younger buyers said they wanted to minimize their impact on the environment. The company understood this view. In an interview, Jesper Brodin, the chief executive of Ingka Group (the largest franchisee of IKEA stores), commented that "climate change and unsustainable consumption are among the biggest challenges we face in society". The other strategic objectives of the plan were to be more affordable and more convenient. The company said it would test the rental concept in all 30 markets by 2020, expecting it to increase the number of times a piece of furniture would be used before recycling.

Restaurant and food markets

The first IKEA store opened in 1958 with a small cafe that transitioned into a full-blown restaurant in 1960 that, until 2011, sold branded Swedish prepared specialist foods, such as meatballs, packages of gravy, lingonberry jam, various biscuits and crackers, and salmon and fish roe spread. The new label has a variety of items including chocolates, meatballs, jams, pancakes, salmon and various drinks.

Although the cafes primarily serve Swedish food, the menu varies based on the culture, food and location of each store. With restaurants in 38 countries, the menu often incorporates local dishes, including shawarma in Saudi Arabia, poutine in Canada, macarons in France, and gelato in Italy. In Indonesia, the Swedish meatballs recipe is changed to accommodate the country's halal requirements. Stores in Israel sell kosher food under rabbinical supervision. The kosher restaurants are separated into dairy and meat areas.

In many locations, the IKEA restaurants open daily before the rest of the store and serve breakfast. All food products are based on Swedish recipes and traditions. Food accounts for 5% of IKEA's sales.

IKEA sells plant-based meatballs made from potatoes, apples, pea protein, and oats in all of its stores. According to United States journalist Avery Yale Kamila, IKEA began testing its plant-based meatballs in 2014, then launched the plant-based meatballs in 2015 and began testing vegan hot dogs in 2018. In 2019, journalist James Hansen reported in Eater London that IKEA would only sell vegetarian food at Christmas time.

Småland
Every store has a children's play area, named Småland (Swedish for small lands; it is also the Swedish province of Småland where founder Kamprad was born). Parents drop off their children at a gate to the playground, and pick them up after they arrive at another entrance. In some stores, parents are given free pagers by the on-site staff, which the staff can use to summon parents whose children need them earlier than expected; in others, staff summon parents through announcements over the in-store public address system or by calling them on their mobile phones. The largest Småland play area is located at the IKEA store in Navi Mumbai, India. Some of these were closed down due to the COVID-19 pandemic.

Other ventures

Until 28 September 2023, IKEA owned & operated the MEGA Family Shopping Centre chain in Russia. Its operations have since been sold to Gazprombank.

On 8 August 2008, IKEA UK launched a virtual mobile phone network called IKEA Family Mobile, which ran on T-Mobile. At launch it was the cheapest pay-as-you-go network in the UK. In June 2015 the network announced that its services would cease to operate from 31 August 2015.

, IKEA has a joint venture with TCL to provide Uppleva integrated HDTV and entertainment system products.

In mid-August 2012, the company announced that it would establish a chain of 100 economy hotels in Europe but, unlike its few existing hotels in Scandinavia, they would not carry the IKEA name, nor would they use IKEA furniture and furnishings – they would be operated by an unnamed international group of hoteliers. As of 30 April 2018, however, the company owned only a single hotel, the IKEA Hotell in Älmhult, Sweden.

It was previously planning to open another one, in New Haven, Connecticut, United States, after converting the historic Pirelli Building. The company received approval for the concept from the city's planning commission in mid-November 2018; the building was to include 165 rooms and the property would offer 129 dedicated parking spaces. Research in April 2019 provided no indication that the hotel had been completed as of that time. The building was then sold to Connecticut architect and developer Becker + Becker for $1.2million. Opening in 2022 under Hotel Marcel, it is managed by Charlestowne Hotels and became part of Hilton's Tapestry Collection.

From 2016 to 2018, IKEA sold a commuter belt-driven bicycle, the Sladda.

In September 2017, IKEA announced they would be acquiring the UD company TaskRabbit. The deal, completed later that year, has TaskRabbit operating as an independent company.

In March 2020, IKEA announced that it had partnered with Pizza Hut Hong Kong on a joint venture. IKEA launched a new side table called SÄVA. The table, designed to resemble a pizza saver, would be boxed in packaging resembling a pizza box, and the building instructions included a suggestion to order a Swedish meatball pizza from Pizza Hut, which would contain the same meatballs served in IKEA restaurants.

In April 2020, IKEA acquired AI imaging startup Geomagical Labs.

In July 2020, IKEA opened a concept store in the Harajuku district of Tokyo, Japan, where it launched its first ever apparel line.

Ingka Centres, IKEA's malls division, announced in December 2021 that it would open two malls, anchored by IKEA stores, in Gurugram and Noida in India at a cost of around inr 90000000000. Both malls are expected to open by 2025.

In 2016, IKEA Canada partnered with the Setsuné Indigenous Fashion Incubator, co-founded by Sage Paul, to design and produce the collection ÅTERSTÄLLA, which means to restore, heal, or redecorate, and it was made entirely from salvaged Ikea textiles, reflecting the traditional Indigenous value to "use everything."

Corporate structure
IKEA is owned and operated by a complicated array of not-for-profit and for-profit corporations. The corporate structure is divided into two main parts: operations and franchising.

INGKA Holding B.V., based in the Netherlands, owns the Ingka Group, which takes care of the centres, retails, customer fulfillment, and all the other services related to IKEA products. The IKEA brand is owned and managed by Inter IKEA Systems B.V., based in the Netherlands, owned by Inter IKEA Holding B.V. Inter IKEA Holding is also in charge of design, manufacturing and supply of IKEA products.

Inter IKEA Systems is owned by Inter IKEA Holding BV, a company registered in the Netherlands, formerly registered in Luxembourg (under the name Inter IKEA Holding SA). Inter IKEA Holding, in turn, is owned by the Interogo Foundation, based in Liechtenstein. In 2016, the INGKA Holding sold its design, manufacturing and logistics subsidiaries to Inter IKEA Holding.

In June 2013, Ingvar Kamprad resigned from the board of Inter IKEA Holding SA and his youngest son Mathias Kamprad replaced Per Ludvigsson as the chairman of the holding company. Following his decision to step down, the 87-year-old founder explained, "I see this as a good time for me to leave the board of Inter IKEA Group. By that we are also taking another step in the generation shift that has been ongoing for some years." After the 2016 company restructure, Inter IKEA Holding SA no longer exists, having reincorporated in the Netherlands. Mathias Kamprad became a board member of the Inter IKEA Group and the Interogo Foundation. Mathias and his two older brothers, who also have leadership roles at IKEA, work on the corporation's overall vision and long-term strategy.

Control by Kamprad

Along with helping IKEA make a non-taxable profit, IKEA's complicated corporate structure allowed Kamprad to maintain tight control over the operations of INGKA Holding, and thus the operation of most IKEA stores. The INGKA Foundation's five-person executive committee was chaired by Kamprad. It appoints a board of INGKA Holding, approves any changes to INGKA Holding's bylaws, and has the right to preempt new share issues. If a member of the executive committee quits or dies, the other four members appoint their replacement.

In Kamprad's absence, the foundation's bylaws include specific provisions requiring it to continue operating the INGKA Holding group and specifying that shares can be sold only to another foundation with the same objectives as the INGKA Foundation.

Financial information

The net profit of IKEA Group (which does not include Inter IKEA systems) in fiscal year 2009 (after paying franchise fees to Inter IKEA systems) was €2.538billion on sales of €21.846billion. Because INGKA Holding is owned by the non-profit INGKA Foundation, none of this profit is taxed. The foundation's nonprofit status also means that the Kamprad family cannot reap these profits directly, but the Kamprads do collect a portion of IKEA sales profits through the franchising relationship between INGKA Holding and Inter IKEA Systems.

As a franchisee, the Ingka Group pays 3% of royalties to Inter IKEA Systems. Inter IKEA Systems collected €631million of franchise fees in 2004 but reported pre-tax profits of only €225million in 2004. One of the major pre-tax expenses that Inter IKEA systems reported was €590million of "other operating charges". IKEA has refused to explain these charges, but Inter IKEA Systems appears to make large payments to I.I. Holding, another Luxembourg-registered group that, according to The Economist, "is almost certain to be controlled by the Kamprad family". I.I. Holding made a profit of €328million in 2004.

In 2004, the Inter IKEA group of companies and I.I. Holding reported combined profits of €553m and paid €19m in taxes, or approximately 3.5 percent.

IKEA has avoided millions of euros in taxes performing some intrincated mechanisms and it was noted by the EU back in 2017. The main countries where they operated their business using tax loopholes were the Netherlands, Luxembourg and Belgium.

Public Eye, a non-profit organisation in Switzerland that promotes corporate responsibility, has formally criticised IKEA for its tax avoidance strategies. In 2007, the organisation nominated IKEA for one of its Public Eye "awards", which highlight corporate irresponsibility.

In February 2016, the Greens / EFA group in the European Parliament issued a report entitled IKEA: Flat Pack Tax Avoidance on the tax planning strategies of IKEA and their possible use to avoid tax in several European countries. The report was sent to Pierre Moscovici, the European Commissioner for Economic and Financial Affairs, Taxation and Customs, and Margrethe Vestager, the European Commissioner for Competition, expressing the hope that it would be of use to them in their respective roles "to advance the fight for tax justice in Europe".

Manufacturing, logistics, and labour
Although IKEA originated in Sweden, their household products and furniture products are manufactured in many different countries, in order to achieve cost efficiency. For most of its products, the final assembly is performed by the end-user (consumer).

Swedwood, an IKEA subsidiary, produces all of the company's wood-based products, with the largest Swedwood factory located in Southern Poland. According to the subsidiary, over 16,000 employees across 50 sites in 10 countries manufacture the 100million pieces of furniture that IKEA sells annually. IKEA furniture uses the hardwood alternative particle board. Hultsfred, a factory in southern Sweden, is the company's sole supplier.

Distribution centre efficiency and flexibility have been one of IKEA's ongoing priorities and thus it has implemented automated, robotic warehouse systems and warehouse management systems (WMS). Such systems facilitate a merger of the traditional retail and mail order sales channels into an omni-channel fulfillment model. In 2020, Ikea was noted by Supply Chain magazine as having one of the most automated warehouse systems in the world.

In the 1980s under the rule of the Romanian dictator Nicolae Ceaușescu, Romania's secret police, the Securitate, received six-figure payments from IKEA. According to declassified files at the National College for Studying the Securitate Archives, IKEA agreed to overcharge for products made in Romania and some of the overpayment funds were deposited into an account controlled by the Securitate.

2021 supply chain problems
Due to the COVID-19 pandemic, IKEA has been facing major supply chain issues since 2021, which could extend into 2022. Jon Abrahamsson, the chief executive of Inter IKEA has stated that the main issue is shipping products from China, as a "quarter" of IKEA products are made there. A variety of reasons led to supply shortages, including consumption shocks. In addition, factories were unable to produce raw materials and workers even after they began receiving orders.

Labour practices
During the 1980s, IKEA kept its costs down by using production facilities in East Germany. A portion of the workforce at those factories consisted of political prisoners. This fact, revealed in a report by Ernst & Young commissioned by the company, resulted from the intermingling of criminals and political dissidents in the state-owned production facilities IKEA contracted with, a practice which was generally known in West Germany. IKEA was one of a number of companies, including West German firms, which benefited from this practice. The investigation resulted from attempts by former political prisoners to obtain compensation. In November 2012, IKEA admitted being aware at the time of the possibility of use of forced labour and failing to exercise sufficient control to identify and avoid it. A summary of the Ernst & Young report was released on 16 November 2012.

In 2018, Ikea was accused of union busting when employees sought to organize, using such tactics as captive audience meetings.

IKEA was named one of the 100 Best Companies for Working Mothers in 2004 and 2005 by Working Mothers magazine. It ranked 80 in Fortune's 200 Best Companies to Work For in 2006 and in October 2008, IKEA Canada LP was named one of "Canada's Top 100 Employers" by Mediacorp Canada Inc.

Umbrella initiatives
After initial environmental issues like the highly publicized formaldehyde scandals in the early 1980s and 1992,  IKEA took a proactive stance on environmental issues and tried to prevent future incidents through a variety of measures. In 1990, IKEA invited Karl-Henrik Robèrt, founder of the Natural Step, to address its board of directors. Robert's system conditions for sustainability provided a strategic approach to improving the company's environmental performance. In 1990, IKEA adopted the Natural Step framework as the basis for its environmental plan. This led to the development of an Environmental Action Plan, which was adopted in 1992. The plan focused on structural change, allowing IKEA to "maximize the impact of resources invested and reduce the energy necessary to address isolated issues." The environmental measures taken include the following:

 * 1) Replacing polyvinylchloride (PVC) in wallpapers, home textiles, shower curtains, lampshades and furniture—PVC has been eliminated from packaging and is being phased out in electric cables;
 * 2) Minimizing the use of formaldehyde in its products, including textiles;
 * 3) Eliminating acid-curing lacquers;
 * 4) Producing a model of chair (OGLA) made from 100% post-consumer plastic waste;
 * 5) Introducing a series of air-inflatable furniture products into the product line. Such products reduce the use of raw materials for framing and stuffing and reduce transportation weight and volume to about 15% of that of conventional furniture;
 * 6) Reducing the use of chromium for metal surface treatment;
 * 7) Limiting the use of substances such as cadmium, lead, PCB, PCP, and Azo pigments;
 * 8) Using wood from responsibly managed forests that replant and maintain biological diversity;
 * 9) Using only recyclable materials for flat packaging and "pure" (non-mixed) materials for packaging to assist in recycling.
 * 10) Introducing rental bicycles with trailers for customers in Denmark.

In 2000, IKEA introduced its code of conduct for suppliers that covers social, safety, and environmental questions. Today IKEA has around 60 auditors who perform hundreds of supplier audits every year. The main purpose of these audits is to make sure that the IKEA suppliers follow the law in each country where they are based. Most IKEA suppliers fulfil the law today with exceptions for some special issues, one being excessive working hours in Asia, in countries such as China and India.

, IKEA has signed on with 25 other companies to participate in the British Retail Consortium's Better Retail Better World initiative, which challenges companies to meet objectives outlined by the United Nations Sustainable Development Goals.

Product life cycle
To make IKEA a more sustainable company, a product life cycle was created. For the idea stage, products should be flat-packed so that more items can be shipped at once; products should also be easier to dismantle and recycle. Raw materials are used, and since wood and cotton are two of IKEA's most important manufacturing products, the company works with environmentally friendly forests and cotton, whereby the excessive use of chemicals and water is avoided.

IKEA stores recycle waste and many run on renewable energy. All employees are trained in environmental and social responsibility, while public transit is one of the priorities when the location of stores is considered. Also, the coffee and chocolate served at IKEA stores is UTZ Certified.

The last stage of the life cycle is the end of life. Most IKEA stores recycle light bulbs and drained batteries, and the company is also exploring the recycling of sofas and other home furnishing products.

Energy sources
In August 2008, IKEA announced that it had created IKEA GreenTech, a €50million venture capital fund. Located in Lund (a university town in Sweden), it will invest in 8–10 companies in the coming five years with focus on solar panels, alternative light sources, product materials, energy efficiency and water saving and purification. The aim is to commercialise green technologies for sale in IKEA stores within 3–4 years.

On 17 February 2011, IKEA announced its plans to develop a wind farm in Dalarna County, Sweden, furthering its goal of using only renewable energy to fuel its operations. , 17 United States IKEA stores are powered by solar panels, with 22 additional installations in progress, and IKEA owns the 165 MW Cameron Wind farm in Cameron County on the South Texas coast and a 42 MW coastal wind farm in Finland.

In September 2019, IKEA announced that they would be investing $2.8billion in renewable energy infrastructure. The company is targeting making their entire supply chain climate positive by 2030.

Sourcing of wood
The group is responsible for approximately 1% of world commercial-product wood consumption, making it the largest individual user of wood in the world. IKEA claims to use 99.5% recycled or FSC-certified wood. However, IKEA has been shown to be involved in unsustainable and most likely illegal logging of old-growth and protected forests in multiple Eastern European countries in recent years.

IKEA is the world's largest buyer and retailer of wood. In 2015, IKEA claimed to use 1% of the world's supply of timber.

According to IKEA's 2021 Sustainability Report, 99.5% of all wood that the company uses is either recycled or meets the standards of the Forest Stewardship Council. IKEA states that "[a]ll wood used for IKEA products must meet our critical requirements that ensure it's not (e.g.) sourced from illegally harvested forests [...]". However, despite these claims, IKEA has been involved in unsustainable and most likely illegal logging of wood in multiple Eastern European countries in recent years; see Criticism of IKEA.

IKEA owns about 136,000 acres of forest in the US and about 450,000 acres in Europe.

On 14 January 2021, IKEA announced that Ingka Investments had acquired approximately 10,840 acres (4,386 hectares) near the Altamaha River Basin in the U.S. state of Georgia from The Conservation Fund. The acquisition comes with the agreement "to protect the land from fragmentation, restore the longleaf pine forest, and safe-guard the habitat of the gopher tortoise."

IKEA is reported to be the largest private landowner in Romania since 2015.

Use of wood
In 2011, the company examined its wood consumption and noticed that almost half of its global pine and spruce consumption was for the fabrication of pallets. The company consequently started a transition to the use of paper pallets and the "Optiledge system". The OptiLedge product is totally recyclable, made from 100% virgin high-impact copolymer polypropylene (PP) plastic. The system is a "unit load alternative to the use of a pallet. The system consists of the OptiLedge (usually used in pairs), aligned and strapped to the bottom carton to form a base layer upon which to stack more products. Corner boards are used when strapping to minimize the potential for package compression." The conversion began in Germany and Japan, before its introduction into the rest of Europe and North America. The system has been marketed to other companies, and IKEA has formed the OptiLedge company to manage and sell the product.

Packaging and bags
Since March 2013, IKEA has stopped providing plastic bags to customers, but offers reusable bags for sale. The IKEA restaurants also only offer reusable plates, knives, forks, spoons, etc. Toilets in some IKEA WC-rooms have been outfitted with dual-function flushers. IKEA has recycling bins for compact fluorescent lamps (CFLs), energy-saving bulbs, and batteries.

In 2001, IKEA was one of the first companies to operate its own cross-border goods trains through several countries in Europe.

Electric vehicles
IKEA has expanded its sustainability plan in the UK to include electric car charge points for customers at all locations by the end of 2013. The effort will include Nissan and Ecotricity and promise to deliver an 80% charge in 30 minutes.

From 2016, IKEA has only sold energy-efficient LED lightbulbs, lamps and light fixtures. LED lightbulbs use as little as 15% of the power of a regular incandescent light bulb.

Donations made by IKEA
The INGKA Foundation is officially dedicated to promoting "innovations in architecture and interior design". The net worth of the foundation exceeded the net worth of the much better known Bill & Melinda Gates Foundation (now the largest private foundation in the world) for a period. However, most of the Group's profit is spent on investment.

IKEA is involved in several international charitable causes, particularly in partnership with UNICEF, including:
 * In the wake of the 2004 Indian Ocean earthquake and tsunami, IKEA Australia agreed to match dollar for dollar co-workers' donations and donated all sales of the IKEA Blue Bag to the cause.
 * After the 2005 Kashmir earthquake, IKEA gave 500,000 blankets to the relief effort in the region.
 * IKEA has provided furniture for over 100 "bridge schools" in Liberia.
 * Following the 2008 Sichuan earthquake in China, IKEA Beijing sold an alligator toy for 40 yuan (US$5.83, €3.70) with all income going to the children in the earthquake struck area.
 * In 2013, IKEA donated more than $2.6million to UNICEF to help children and families affected by Typhoon Haiyan in the Philippines.

IKEA also supports American Forests to restore forests and reduce pollution.

On 3 March 2022, IKEA announced €20million donation to UNHCR for relief support of Ukrainians who suffer from the 2022 Russian invasion of Ukraine.

IKEA donated €10 million to Doctors Without Borders for its work in Syria in response to the 2023 Turkey–Syria earthquake.

IKEA Social Initiative
In September 2005, IKEA Social Initiative was formed to manage the company's social involvement on a global level. IKEA Social Initiative is headed by Marianne Barner.

The main partners of IKEA Social Initiative are UNICEF and Save the Children.

On 23 February 2009, at the ECOSOC event in New York, UNICEF announced that IKEA Social Initiative has become the agency's largest corporate partner, with total commitments of more than US$180million (£281,079,000).

Examples of involvements:
 * The IKEA Social Initiative contributes €1 (£1.73) to UNICEF and Save the Children from each soft toy sold during the holiday seasons, raising a total of €16.7million (£28.91million) so far. In 2013, an IKEA soft toy, Lufsig, created a storm and sold out in Hong Kong and in Southern China because it had been misnamed in Chinese.
 * The IKEA Social Initiative provided soft toys to children in Burma after Cyclone Nargis.
 * Starting in June 2009, for every Sunnan solar-powered lamp sold in IKEA stores worldwide, IKEA Social Initiative will donate one Sunnan with the help of UNICEF.
 * In September 2011, the IKEA Foundation pledged to donate $62million to help Somali refugees in Kenya.
 * According to The Economist, however, IKEA's charitable giving is meager, "barely a rounding error in the foundation's assets".

In 2009, Sweden's largest television station, SVT, revealed that IKEA's money—the three per cent collection from each store—does not actually go to a charitable foundation in the Netherlands, as IKEA has said. Inter IKEA is owned by a foundation in Liechtenstein, called Interogo, which has amassed $12billion (£18billion), and is controlled by the Kamprad family.

Catalogue
IKEA used to publish an annual catalogue, first published in Swedish in 1951. It is considered to be the main marketing tool of the company, consuming 70% of its annual marketing budget. The catalogue is distributed both in stores and by mail, with most of it being produced by IKEA Communications AB in IKEA's hometown of Älmhult, Sweden. At its peak in 2016, 200million copies of the catalogue were distributed in 32 languages to more than 50 markets. In December 2020, IKEA announced that they would cease publication of both the print and digital versions of the catalogue, with the 2021 edition (released in 2020) being the final edition.

IKEA Family

In common with some other retailers, IKEA launched a loyalty card called "IKEA Family". The card is free of charge and can be used to obtain discounts on certain products found in-store. It is available worldwide. In conjunction with the card, IKEA also publishes and sells a printed quarterly magazine titled IKEA Family Live which supplements the card and catalogue. The magazine is already printed in thirteen languages and an English edition for the United Kingdom was launched in February 2007. It is expected to have a subscription of over 500,000.

IKEA Place app
On 12 September 2017, IKEA announced the augmented reality app, IKEA Place, following by Apple's release of its ARkit technology and iOS 11. IKEA Place helps consumers to visualize true to scale IKEA products into real environment.

Advertising
In 1994, IKEA ran a commercial in the United States, titled Dining Room, widely thought to be the first to feature a homosexual couple; it aired for several weeks before being withdrawn after calls for a boycott and a bomb threat directed at IKEA stores. Other IKEA commercials appeal to the wider LGBTQ community, one featuring a transgender woman.

In 2002, the inaugural television component of the "Unböring" campaign, titled Lamp, went on to win several awards, including a Grand Clio, Golds at the London International Awards and the ANDY Awards, and the Grand Prix at the Cannes Lions International Advertising Festival, the most prestigious awards ceremony in the advertising community.

A debate ensued between Fraser Patterson, Chief Executive of Onis, and Andrew McGuinness, partner at Beattie McGuinness Bungay (BMB), the advertising and PR agency that was awarded the £12 million IKEA account. The essence of the debate was that BMB claimed to be unaware of Onis's campaign as Onis was not an advertising agency. Onis's argument was that its advertising could be seen in prominent landmarks throughout London, having been already accredited, showing concern about the impact IKEA's campaign would have on the originality of its own. BMB and IKEA subsequently agreed to provide Onis with a feature page on the IKEA campaign site linking through to Onis's website for a period of one year.

In 2008, IKEA paired up with the makers of video game The Sims 2 to make a stuff pack called IKEA Home Stuff, featuring many IKEA products. It was released on 24 June 2008 in North America and 26 June 2008 in Europe. It is the second stuff pack with a major brand, the first being The Sims 2 H&M Fashion Stuff.

IKEA took over the title sponsorship of Philadelphia's annual Thanksgiving Day parade in 2008, replacing Boscov's, which filed for bankruptcy in August 2008.

In November 2008, a subway train decorated in IKEA style was introduced in Novosibirsk, Russia. Four cars were turned into a mobile showroom of the Swedish design. The redesigned train, which features colourful seats and fancy curtains, carried passengers until 6 June 2009.

In March 2010, IKEA developed an event in four important Métro stations in Paris, in which furniture collections are displayed in high-traffic spots, giving potential customers a chance to check out the brand's products. The Métro walls were also filled with prints that showcase IKEA interiors.

In September 2017, IKEA launched the "IKEA Human Catalogue" campaign, in which memory champion Yanjaa Wintersoul memorized all 328 pages of the catalogue in minute detail in just a week before its launch. To prove the legitimacy and accuracy of the campaign, live demonstrations were held at press conferences in IKEA stores across Malaysia, Singapore, Thailand as well as a Facebook Live event held at the Facebook Singapore headquarters and talk show demonstrations in the US with Steve Harvey among others. The advertising campaign was hugely successful winning numerous industry awards including the Webby award 2018 for best social media campaign, an Ogilvy award and is currently a contender for the Cannes Lions 2018.

In 2020, IKEA conducted a "Buy Back Friday" campaign with a message to present a new life to old furniture instead of offering customers to buy new items for Black Friday.

In June 2021, IKEA said it had suspended adverts on GB News because of concerns the channel's content would go against their aim to be inclusive. In a statement IKEA said: "We have safeguards in place to prevent our advertising from appearing on platforms that are not in line with our humanistic values. We are in the process of investigating how this may have occurred to ensure it won't happen again in future, and have suspended paid display advertising in the meantime."

In popular culture
In 2018, the company's plush toy shark "Blåhaj" was widely used in an internet meme,  with social media users posting humorous photos of it in their homes.

The song "IKEA" was released by Jonathan Coulton on the album Smoking Monkey in 2003.

1999 American movie Fight Club references to IKEA furnitures to show the consumerist culture of modern times.

In December 2019, comedy metal band Nanowar of Steel released the song Valhallelujah which is dedicated to Odin and IKEA. The music video features a Viking boat with the sail adorned with the IKEA logo, and a fictional IKEA catalogue written in Old Norse runes. The lyrics include references to various IKEA products, namely BEDDINGE, KIVIK, VITTSJÖ, KNOPPARP, BESTÅ and SLATTUM.

IKEA stores have been featured in many works of fiction. Some examples include:
 * The 1986 Swedish crime comedy film Jönssonligan dyker upp igen features a failed robbery of the IKEA store at Kungens Kurva by the eponymous gang.
 * The 2009 American film 500 Days of Summer features the main characters flirting around the showroom of an IKEA store. It was filmed on-location at an IKEA store. One of the tracks from the film's score is entitled "Ikea" to reflect the scene.
 * IKEA Heights, a 2009 comedic melodrama web series, was filmed without permission in an IKEA store.
 * The 2014 novel The Extraordinary Journey of the Fakir Who Got Trapped in an Ikea Wardrobe by French author Romain Puertolas features a trip to an IKEA store in Paris, France.
 * The 2014 horror comedy novel Horrorstör is set in a haunted store called ORSK, modelled on IKEA, and the novel is designed to look like the IKEA catalogue.
 * The SCP Foundation, an online collaborative writing project documenting fictional anomalies features an entry (numbered SCP-3008) originating in 2017 about an IKEA store which is notably bigger on the inside than its exterior implies, and from which escaping is difficult. The interior of this store is populated by entities dressed in IKEA staff attire, resembling highly deformed, faceless humanoids, which are normally passive during the "day" (when the lights are switched on) but become aggressive during the "night" (when the lights are switched off).
 * A number of survival horror video games have been created based on SCP-3008.
 * The 2021 children's picture book Bears Out of The Box features IKEA's Fabler Bjorn doll, who is trying to venture outside the store.

title: IKEA


text:
Iridium

Iridium is a chemical element; it has symbol Ir and atomic number 77. A very hard, brittle, silvery-white transition metal of the platinum group, it is considered the second-densest naturally occurring metal (after osmium) with a density of 22.56 g/cm3 as defined by experimental X-ray crystallography. 191Ir and 193Ir are the only two naturally occurring isotopes of iridium, as well as the only stable isotopes; the latter is the more abundant. It is one of the most corrosion-resistant metals, even at temperatures as high as 2000 °C.

Iridium was discovered in 1803 in the acid-insoluble residues of platinum ores by the English chemist Smithson Tennant. The name iridium, derived from the Greek word iris (rainbow), refers to the various colors of its compounds. Iridium is one of the rarest elements in Earth's crust, with an estimated annual production of only 15,000 lb in 2023.

The dominant uses of iridium are the metal itself and its alloys, as in high-performance spark plugs, crucibles for recrystallization of semiconductors at high temperatures, and electrodes for the production of chlorine in the chloralkali process. Important compounds of iridium are chlorides and iodides in industrial catalysis. Iridium is a component of some OLEDs.

Iridium is found in meteorites in much higher abundance than in the Earth's crust. For this reason, the unusually high abundance of iridium in the clay layer at the Cretaceous–Paleogene boundary gave rise to the Alvarez hypothesis that the impact of a massive extraterrestrial object caused the extinction of dinosaurs and many other species 66 million years ago, now known to be produced by the impact that formed the Chicxulub crater. Similarly, an iridium anomaly in core samples from the Pacific Ocean suggested the Eltanin impact of about 2.5 million years ago.

Physical properties
A member of the platinum group metals, iridium is white, resembling platinum, but with a slight yellowish cast. Because of its hardness, brittleness, and very high melting point, solid iridium is difficult to machine, form, or work; thus powder metallurgy is commonly employed instead. It is the only metal to maintain good mechanical properties in air at temperatures above 1600 C. It has the 10th highest boiling point among all elements and becomes a superconductor at temperatures below 0.14 K.

Iridium's modulus of elasticity is the second-highest among the metals, being surpassed only by osmium. This, together with a high shear modulus and a very low figure for Poisson's ratio (the relationship of longitudinal to lateral strain), indicate the high degree of stiffness and resistance to deformation that have rendered its fabrication into useful components a matter of great difficulty. Despite these limitations and iridium's high cost, a number of applications have developed where mechanical strength is an essential factor in some of the extremely severe conditions encountered in modern technology.

The measured density of iridium is only slightly lower (by about 0.12%) than that of osmium, the densest metal known. Some ambiguity occurred regarding which of the two elements was denser, due to the small size of the difference in density and difficulties in measuring it accurately, but, with increased accuracy in factors used for calculating density, X-ray crystallographic data yielded densities of 22.56 g/cm3 for iridium and 22.59 g/cm3 for osmium.

Iridium is extremely brittle, to the point of being hard to weld because the heat-affected zone cracks, but it can be made more ductile by addition of small quantities of titanium and zirconium (0.2% of each apparently works well).

The Vickers hardness of pure platinum is 56 HV, whereas platinum with 50% of iridium can reach over 500 HV.

Chemical properties
Iridium is the most corrosion-resistant metal known. It is not attacked by acids, including aqua regia, but it can be dissolved in concentrated hydrochloric acid in the presence of sodium perchlorate. In the presence of oxygen, it reacts with cyanide salts. Traditional oxidants also react, including the halogens and oxygen at higher temperatures. Iridium also reacts directly with sulfur at atmospheric pressure to yield iridium disulfide.

Isotopes
Iridium has two naturally occurring stable isotopes, 191Ir and 193Ir, with natural abundances of 37.3% and 62.7%, respectively. At least 37 radioisotopes have also been synthesized, ranging in mass number from 164 to 202. 192Ir, which falls between the two stable isotopes, is the most stable radioisotope, with a half-life of 73.827 days, and finds application in brachytherapy and in industrial radiography, particularly for nondestructive testing of welds in steel in the oil and gas industries; iridium-192 sources have been involved in a number of radiological accidents. Three other isotopes have half-lives of at least a day—188Ir, 189Ir, and 190Ir. Isotopes with masses below 191 decay by some combination of β+ decay, α decay, and (rare) proton emission, with the exception of 189Ir, which decays by electron capture. Synthetic isotopes heavier than 191 decay by β− decay, although 192Ir also has a minor electron capture decay path. All known isotopes of iridium were discovered between 1934 and 2008, with the most recent discoveries being 200–202Ir.

At least 32 metastable isomers have been characterized, ranging in mass number from 164 to 197. The most stable of these is 192m2Ir, which decays by isomeric transition with a half-life of 241 years, making it more stable than any of iridium's synthetic isotopes in their ground states. The least stable isomer is 190m3Ir with a half-life of only 2 μs. The isotope 191Ir was the first one of any element to be shown to present a Mössbauer effect. This renders it useful for Mössbauer spectroscopy for research in physics, chemistry, biochemistry, metallurgy, and mineralogy.

Oxidation states
Iridium forms compounds in oxidation states between −3 and +9, but the most common oxidation states are +1, +2, +3, and +4. Well-characterized compounds containing iridium in the +6 oxidation state include IrF6 and the oxides Sr2MgIrO6 and Sr2CaIrO6. iridium(VIII) oxide (IrO4) was generated under matrix isolation conditions at 6 K in argon. The highest oxidation state (+9), which is also the highest recorded for any element, is found in gaseous [IrO4]+.

Binary compounds
Iridium does not form binary hydrides. Only one binary oxide is well-characterized: iridium dioxide,. It is a blue black solid that adopts the fluorite structure. A sesquioxide,, has been described as a blue-black powder, which is oxidized to by. The corresponding disulfides, diselenides, sesquisulfides, and sesquiselenides are known, as well as.

Binary trihalides,, are known for all of the halogens. For oxidation states +4 and above, only the tetrafluoride, pentafluoride and hexafluoride are known. Iridium hexafluoride,, is a volatile yellow solid, composed of octahedral molecules. It decomposes in water and is reduced to. Iridium pentafluoride is also a strong oxidant, but it is a tetramer,, formed by four corner-sharing octahedra.

Complexes
Iridium has extensive coordination chemistry.

Iridium in its complexes is always low-spin. Ir(III) and Ir(IV) generally form octahedral complexes. Polyhydride complexes are known for the +5 and +3 oxidation states. One example is IrH5(PiPr3)2. The ternary hydride is believed to contain both the  and the 18-electron  anion.

Iridium also forms oxyanions with oxidation states +4 and +5. and can be prepared from the reaction of potassium oxide or potassium superoxide with iridium at high temperatures. Such solids are not soluble in conventional solvents.

Just like many elements, iridium forms important chloride complexes. Hexachloroiridic (IV) acid,, and its ammonium salt are the most common iridium compounds from both industrial and preparative perspectives. They are intermediates in the purification of iridium and used as precursors for most other iridium compounds, as well as in the preparation of anode coatings. The ion has an intense dark brown color, and can be readily reduced to the lighter-colored  and vice versa. Iridium trichloride,, which can be obtained in anhydrous form from direct oxidation of iridium powder by chlorine at 650 °C, or in hydrated form by dissolving in hydrochloric acid, is often used as a starting material for the synthesis of other Ir(III) compounds. Another compound used as a starting material is ammonium hexachloroiridate(III),.

In the presence of air, iridium metal dissolves in molten alkali-metal cyanides to produce the (hexacyanoiridate) ion and upon oxidation produces the most stable oxide.

Organoiridium chemistry
Organoiridium compounds contain iridium–carbon bonds. Early studies identified the very stable tetrairidium dodecacarbonyl,. In this compound, each of the iridium atoms is bonded to the other three, forming a tetrahedral cluster. The discovery of Vaska's complex opened the door for oxidative addition reactions, a process fundamental to useful reactions. For example, Crabtree's catalyst, a homogeneous catalyst for hydrogenation reactions.

Iridium complexes played a pivotal role in the development of Carbon–hydrogen bond activation (C–H activation), which promises to allow functionalization of hydrocarbons, which are traditionally regarded as unreactive.

Platinum group

The discovery of iridium is intertwined with that of platinum and the other metals of the platinum group. The first European reference to platinum appears in 1557 in the writings of the Italian humanist Julius Caesar Scaliger as a description of an unknown noble metal found between Darién and Mexico, "which no fire nor any Spanish artifice has yet been able to liquefy". From their first encounters with platinum, the Spanish generally saw the metal as a kind of impurity in gold, and it was treated as such. It was often simply thrown away, and there was an official decree forbidding the adulteration of gold with platinum impurities.

In 1735, Antonio de Ulloa and Jorge Juan y Santacilia saw Native Americans mining platinum while the Spaniards were travelling through Colombia and Peru for eight years. Ulloa and Juan found mines with the whitish metal nuggets and took them home to Spain. Ulloa returned to Spain and established the first mineralogy lab in Spain and was the first to systematically study platinum, which was in 1748. His historical account of the expedition included a description of platinum as being neither separable nor calcinable. Ulloa also anticipated the discovery of platinum mines. After publishing the report in 1748, Ulloa did not continue to investigate the new metal. In 1758, he was sent to superintend mercury mining operations in Huancavelica.

In 1741, Charles Wood, a British metallurgist, found various samples of Colombian platinum in Jamaica, which he sent to William Brownrigg for further investigation.

In 1750, after studying the platinum sent to him by Wood, Brownrigg presented a detailed account of the metal to the Royal Society, stating that he had seen no mention of it in any previous accounts of known minerals. Brownrigg also made note of platinum's extremely high melting point and refractory metal-like behaviour toward borax. Other chemists across Europe soon began studying platinum, including Andreas Sigismund Marggraf, Torbern Bergman, Jöns Jakob Berzelius, William Lewis, and Pierre Macquer. In 1752, Henrik Scheffer published a detailed scientific description of the metal, which he referred to as "white gold", including an account of how he succeeded in fusing platinum ore with the aid of arsenic. Scheffer described platinum as being less pliable than gold, but with similar resistance to corrosion.

Discovery
Chemists who studied platinum dissolved it in aqua regia (a mixture of hydrochloric and nitric acids) to create soluble salts. They always observed a small amount of a dark, insoluble residue. Joseph Louis Proust thought that the residue was graphite. The French chemists Victor Collet-Descotils, Antoine François, comte de Fourcroy, and Louis Nicolas Vauquelin also observed the black residue in 1803, but did not obtain enough for further experiments.

In 1803 British scientist Smithson Tennant (1761–1815) analyzed the insoluble residue and concluded that it must contain a new metal. Vauquelin treated the powder alternately with alkali and acids and obtained a volatile new oxide, which he believed to be of this new metal—which he named ptene, from the Greek word πτηνός ptēnós, "winged". Tennant, who had the advantage of a much greater amount of residue, continued his research and identified the two previously undiscovered elements in the black residue, iridium and osmium. He obtained dark red crystals (probably of ]·n) by a sequence of reactions with sodium hydroxide and hydrochloric acid. He named iridium after Iris (Ἶρις), the Greek winged goddess of the rainbow and the messenger of the Olympian gods, because many of the salts he obtained were strongly colored. Discovery of the new elements was documented in a letter to the Royal Society on June 21, 1804.

Metalworking and applications
British scientist John George Children was the first to melt a sample of iridium in 1813 with the aid of "the greatest galvanic battery that has ever been constructed" (at that time). The first to obtain high-purity iridium was Robert Hare in 1842. He found it had a density of around 21.8 g/cm3 and noted the metal is nearly immalleable and very hard. The first melting in appreciable quantity was done by Henri Sainte-Claire Deville and Jules Henri Debray in 1860. They required burning more than 300 L of pure and  gas for each 1 kg of iridium.

These extreme difficulties in melting the metal limited the possibilities for handling iridium. John Isaac Hawkins was looking to obtain a fine and hard point for fountain pen nibs, and in 1834 managed to create an iridium-pointed gold pen. In 1880, John Holland and William Lofland Dudley were able to melt iridium by adding phosphorus and patented the process in the United States; British company Johnson Matthey later stated they had been using a similar process since 1837 and had already presented fused iridium at a number of World Fairs. The first use of an alloy of iridium with ruthenium in thermocouples was made by Otto Feussner in 1933. These allowed for the measurement of high temperatures in air up to 2000 C.

In Munich, Germany in 1957 Rudolf Mössbauer, in what has been called one of the "landmark experiments in twentieth-century physics", discovered the resonant and recoil-free emission and absorption of gamma rays by atoms in a solid metal sample containing only 191Ir. This phenomenon, known as the Mössbauer effect resulted in the awarding of the Nobel Prize in Physics in 1961, at the age 32, just three years after he published his discovery.

Occurrence
Along with many elements having atomic weights higher than that of iron, iridium is only naturally formed by the r-process (rapid neutron capture) in neutron star mergers and possibly rare types of supernovae.

Iridium is one of the nine least abundant stable elements in Earth's crust, having an average mass fraction of 0.001 ppm in crustal rock; platinum is 10 times more abundant, gold is 40 times more abundant, silver and mercury are 80 times more abundant. Tellurium is about as abundant as iridium. In contrast to its low abundance in crustal rock, iridium is relatively common in meteorites, with concentrations of 0.5 ppm or more. The overall concentration of iridium on Earth is thought to be much higher than what is observed in crustal rocks, but because of the density and siderophilic ("iron-loving") character of iridium, it descended below the crust and into Earth's core when the planet was still molten.

Iridium is found in nature as an uncombined element or in natural alloys, especially the iridium–osmium alloys osmiridium (osmium-rich) and iridosmium (iridium-rich). In nickel and copper deposits, the platinum group metals occur as sulfides, tellurides, antimonides, and arsenides. In all of these compounds, platinum can be exchanged with a small amount of iridium or osmium. As with all of the platinum group metals, iridium can be found naturally in alloys with raw nickel or raw copper. A number of iridium-dominant minerals, with iridium as the species-forming element, are known. They are exceedingly rare and often represent the iridium analogues of the above-given ones. The examples are irarsite and cuproiridsite, to mention some. Within Earth's crust, iridium is found at highest concentrations in three types of geologic structure: igneous deposits (crustal intrusions from below), impact craters, and deposits reworked from one of the former structures. The largest known primary reserves are in the Bushveld igneous complex in South Africa, (near the largest known impact structure, the Vredefort impact structure) though the large copper–nickel deposits near Norilsk in Russia, and the Sudbury Basin (also an impact crater) in Canada are also significant sources of iridium. Smaller reserves are found in the United States. Iridium is also found in secondary deposits, combined with platinum and other platinum group metals in alluvial deposits. The alluvial deposits used by pre-Columbian people in the Chocó Department of Colombia are still a source for platinum-group metals. As of 2003, world reserves have not been estimated.

Marine oceanography
Iridium is found within marine organisms, sediments, and the water column. The abundance of iridium in seawater and organisms is relatively low, as it does not readily form chloride complexes. The abundance in organisms is about 20 parts per trillion, or about five orders of magnitude less than in sedimentary rocks at the Cretaceous–Paleogene (K–T) boundary. The concentration of iridium in seawater and marine sediment is sensitive to marine oxygenation, seawater temperature, and various geological and biological processes.

Iridium in sediments can come from cosmic dust, volcanoes, precipitation from seawater, microbial processes, or hydrothermal vents, and its abundance can be strongly indicative of the source. It tends to associate with other ferrous metals in manganese nodules. Iridium is one of the characteristic elements of extraterrestrial rocks, and, along with osmium, can be used as a tracer element for meteoritic material in sediment. For example, core samples from the Pacific Ocean with elevated iridium levels suggested the Eltanin impact of about 2.5 million years ago.

Some of the mass extinctions, such as the Cretaceous extinction, can be identified by anomalously high concentrations of iridium in sediment, and these can be linked to major asteroid impacts.

Cretaceous–Paleogene boundary presence

The Cretaceous–Paleogene boundary of 66 million years ago, marking the temporal border between the Cretaceous and Paleogene periods of geological time, was identified by a thin stratum of iridium-rich clay. A team led by Luis Alvarez proposed in 1980 an extraterrestrial origin for this iridium, attributing it to an asteroid or comet impact. Their theory, known as the Alvarez hypothesis, is now widely accepted to explain the extinction of the non-avian dinosaurs. A large buried impact crater structure with an estimated age of about 66 million years was later identified under what is now the Yucatán Peninsula (the Chicxulub crater). Dewey M. McLean and others argue that the iridium may have been of volcanic origin instead, because Earth's core is rich in iridium, and active volcanoes such as Piton de la Fournaise, in the island of Réunion, are still releasing iridium.

Production
Worldwide production of iridium was about 7300 kg in 2018. The price is high and varying (see table). Illustrative factors that affect the price include oversupply of Ir crucibles and changes in LED technology.

Platinum metals occur together as dilute ores. Iridium is one of the rarer platinum metals: for every 190 tonnes of platinum obtained from ores, only 7.5 tonnes of iridium is isolated. To separate the metals, they must first be brought into solution. Two methods for rendering Ir-containing ores soluble are (i) fusion of the solid with sodium peroxide followed by extraction of the resulting glass in aqua regia and (ii) extraction of the solid with a mixture of chlorine with hydrochloric acid. From soluble extracts, iridium is separated by precipitating solid ammonium hexachloroiridate or by extracting  with organic amines. The first method is similar to the procedure Tennant and Wollaston used for their original separation. The second method can be planned as continuous liquid–liquid extraction and is therefore more suitable for industrial scale production. In either case, the product, an iridium chloride salt, is reduced with hydrogen, yielding the metal as a powder or sponge, which is amenable to powder metallurgy techniques. Iridium is also obtained commercially as a by-product from nickel and copper mining and processing. During electrorefining of copper and nickel, noble metals such as silver, gold and the platinum group metals as well as selenium and tellurium settle to the bottom of the cell as anode mud, which forms the starting point for their extraction.

Applications
Due to iridium's resistance to corrosion it has industrial applications. The main areas of use are electrodes for producing chlorine and other corrosive products, OLEDs, crucibles, catalysts (e.g. acetic acid), and ignition tips for spark plugs.

Ir metal and alloys
Resistance to heat and corrosion are the bases for several uses of iridium and its alloys.

Owing to its high melting point, hardness, and corrosion resistance, iridium is used to make crucibles. Such crucibles are used in the Czochralski process to produce oxide single-crystals (such as sapphires) for use in computer memory devices and in solid state lasers. The crystals, such as gadolinium gallium garnet and yttrium gallium garnet, are grown by melting pre-sintered charges of mixed oxides under oxidizing conditions at temperatures up to 2100 °C.

Certain long-life aircraft engine parts are made of an iridium alloy, and an iridium–titanium alloy is used for deep-water pipes because of its corrosion resistance. Iridium is used for multi-pored spinnerets, through which a plastic polymer melt is extruded to form fibers, such as rayon. Osmium–iridium is used for compass bearings and for balances.

Because of their resistance to arc erosion, iridium alloys are used by some manufacturers for the centre electrodes of spark plugs, and iridium-based spark plugs are particularly used in aviation.

Catalysis
Iridium compounds are used as catalysts in the Cativa process for carbonylation of methanol to produce acetic acid.

Iridium complexes are often active for asymmetric hydrogenation both by traditional hydrogenation. and transfer hydrogenation. This property is the basis of the industrial route to the chiral herbicide (S)-metolachlor. As practiced by Syngenta on the scale of 10,000 tons/year, the complex [Ir(COD)Cl]2 in the presence of Josiphos ligands.

Medical imaging
The radioisotope iridium-192 is one of the two most important sources of energy for use in industrial γ-radiography for non-destructive testing of metals. Additionally, 192Ir is used as a source of gamma radiation for the treatment of cancer using brachytherapy, a form of radiotherapy where a sealed radioactive source is placed inside or next to the area requiring treatment. Specific treatments include high-dose-rate prostate brachytherapy, biliary duct brachytherapy, and intracavitary cervix brachytherapy. Iridium-192 is normally produced by neutron activation of isotope iridium-191 in natural-abundance iridium metal.

Photocatalysis and OLEDs
Iridium complexes are key components of white OLEDs. Similar complexes are used in photocatalysis.

Scientific
An alloy of 90% platinum and 10% iridium was used in 1889 to construct the International Prototype Meter and kilogram mass, kept by the International Bureau of Weights and Measures near Paris. The meter bar was replaced as the definition of the fundamental unit of length in 1960 by a line in the atomic spectrum of krypton, but the kilogram prototype remained the international standard of mass until 20 May 2019, when the kilogram was redefined in terms of the Planck constant. <!-- Iridium is often used as a coating for non-conductive materials in preparation for observation in scanning electron microscopes (SEM). The addition of a 2 to 20 nm layer of iridium helps especially organic materials survive electron beam damage and reduces static charge build-up within the target area of the SEM beam's focal point. A coating of iridium also increases the signal to noise ratio associated with secondary electron emission which is essential to using SEMs for X-Ray spectrographic composition analysis. While other metals can be used for coating objects for SEM use, iridium is the preferred coating when samples will be studied with a wide variety of imaging parameters.

Iridium has been used in the radioisotope thermoelectric generators of unmanned spacecraft such as the Voyager, Viking, Pioneer, Cassini, Galileo, and New Horizons. Iridium was chosen to encapsulate the plutonium-238 fuel in the generator because it can withstand the operating temperatures of up to 2000 °C and for its great strength.

Another use concerns X-ray optics, especially X-ray telescopes. The mirrors of the Chandra X-ray Observatory are coated with a layer of iridium 60 nm thick. Iridium proved to be the best choice for reflecting X-rays after nickel, gold, and platinum were also tested. The iridium layer, which had to be smooth to within a few atoms, was applied by depositing iridium vapor under high vacuum on a base layer of chromium.

Iridium is used in particle physics for the production of antiprotons, a form of antimatter. Antiprotons are made by shooting a high-intensity proton beam at a conversion target, which needs to be made from a very high density material. Although tungsten may be used instead, iridium has the advantage of better stability under the shock waves induced by the temperature rise due to the incident beam.

Iridium forms a variety of complexes of fundamental interest in triplet harvesting.

As part of the cationic nucleic acid intercalators, iridium is used to detect nucleic acids in CyTOF experiments to analyse the presence or viability of nucleated cells in biological samples. -->

Historical

Iridium–osmium alloys were used in fountain pen nib tips. The first major use of iridium was in 1834 in nibs mounted on gold. Starting in 1944, the famous Parker 51 fountain pen was fitted with a nib tipped by a ruthenium and iridium alloy (with 3.8% iridium). The tip material in modern fountain pens is still conventionally called "iridium", although there is seldom any iridium in it; other metals such as ruthenium, osmium, and tungsten have taken its place.

An iridium–platinum alloy was used for the touch holes or vent pieces of cannon. According to a report of the Paris Exhibition of 1867, one of the pieces being exhibited by Johnson and Matthey "has been used in a Whitworth gun for more than 3000 rounds, and scarcely shows signs of wear yet. Those who know the constant trouble and expense which are occasioned by the wearing of the vent-pieces of cannon when in active service, will appreciate this important adaptation".

The pigment iridium black, which consists of very finely divided iridium, is used for painting porcelain an intense black; it was said that "all other porcelain black colors appear grey by the side of it".

Precautions
Iridium in bulk metallic form is not biologically important or hazardous to health due to its lack of reactivity with tissues; there are only about 20 parts per trillion of iridium in human tissue. Like most metals, finely divided iridium powder can be hazardous to handle, as it is an irritant and may ignite in air. By 2015 very little is known about the toxicity of iridium compounds, primarily because it is used so rarely that few people come in contact with it and those who do only with very small amounts. However, soluble salts, such as the iridium halides, could be hazardous due to elements other than iridium or due to iridium itself. At the same time, most iridium compounds are insoluble, which makes absorption into the body difficult.

A radioisotope of iridium,, is dangerous, like other radioactive isotopes. The only reported injuries related to iridium concern accidental exposure to radiation from used in brachytherapy. High-energy gamma radiation from can increase the risk of cancer. External exposure can cause burns, radiation poisoning, and death. Ingestion of 192Ir can burn the linings of the stomach and the intestines. 192Ir, 192mIr, and 194mIr tend to deposit in the liver, and can pose health hazards from both gamma and beta radiation.

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title: Iridium


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IOC (disambiguation)

IOC most commonly refers to the International Olympic Committee.

IOC may also refer to:

Computing

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title: IOC (disambiguation)


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IAm doing some editing stuff here. My name is Heinrich Küttler, and I don't know what to write here.

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