Coal tar is a thick dark liquid which is a by-product of the production of coke and coal gas from coal. It is a type of creosote. It has both medical and industrial uses. Medicinally it is a topical medication applied to skin to treat psoriasis and seborrheic dermatitis (dandruff). It may be used in combination with ultraviolet light therapy. Industrially it is a railroad tie preservative and used in the surfacing of roads. Coal tar was listed as a known human carcinogen in the first Report on Carcinogens from the U.S. Federal Government, issued in 1980.
Potassium hexacyanidoferrate(II) is the inorganic compound with formula K4[Fe(CN)6]·3H2O. It is the potassium salt of the coordination complex [Fe(CN)6]4−. This salt forms lemon-yellow monoclinic crystals.
The Mackintosh raincoat is a form of waterproof raincoat, first sold in 1824, made of rubberised fabric.
BASF SE, an initialism of its original name Badische Anilin- und Sodafabrik, is a European multinational company and the largest chemical producer in the world. Its headquarters are located in Ludwigshafen, Germany.
Prussian blue is a dark blue pigment produced by oxidation of ferrous ferrocyanide salts. It has the chemical formula FeIII
4[FeII
(CN)
6]
3. Turnbull's blue is chemically identical, but is made from different reagents, and its slightly different color stems from different impurities and particle sizes.
Ferrocyanide is the name of the anion [Fe(CN)6]4−. Salts of this coordination complex give yellow solutions. It is usually available as the salt potassium ferrocyanide, which has the formula K4Fe(CN)6. [Fe(CN)6]4− is a diamagnetic species, featuring low-spin iron(II) center in an octahedral ligand environment. Although many salts of cyanide are highly toxic, ferro- and ferricyanides are less toxic because they tend not to release free cyanide. It is of commercial interest as a precursor to the pigment Prussian blue and, as its potassium salt, an anticaking agent.
Croda International plc is a British speciality chemicals company based at Snaith, England. It is listed on the London Stock Exchange.
The Distillers Company plc was a leading Scotch whisky company and, at one time, a constituent of the FTSE 100 Index. It was taken over in 1986 by Guinness & Co. in a transaction that was later found to have involved fraudulent activity, becoming known as the Guinness share-trading fraud.
Jameson is a blended Irish whiskey produced by the Irish Distillers subsidiary of Pernod Ricard. Originally one of the six main Dublin whiskeys at the Jameson Distillery Bow St., Jameson is now distilled at the New Midleton Distillery in County Cork. It is by far the best-selling Irish whiskey in the world; in 2019, annual sales passed 8 million cases. It has been sold internationally since the early 19th century, and is available to buy in over 130 countries.
Newton, Chambers & Co. was one of England's largest industrial companies. It was founded in 1789 by George Newton and Thomas Chambers.
Sodium ferrocyanide is the sodium salt of the coordination compound of formula [Fe(CN)6]4−. In its hydrous form, Na4Fe(CN)6 · 10 H2O (sodium ferrocyanide decahydrate), it is sometimes known as yellow prussiate of soda. It is a yellow crystalline solid that is soluble in water and insoluble in alcohol. The yellow color is the color of ferrocyanide anion. Despite the presence of the cyanide ligands, sodium ferrocyanide has low toxicity (acceptable daily intake 0–0.025 mg/kg body weight). The ferrocyanides are less toxic than many salts of cyanide, because they tend not to release free cyanide. However, like all ferrocyanide salt solutions, addition of an acid or exposure to UV light can result in the production of hydrogen cyanide gas, which is extremely toxic.
Evonik Industries AG is a publicly-listed German specialty chemicals company headquartered in Essen, North Rhine-Westphalia, Germany. It is the second-largest chemicals company in Germany, and one of the largest specialty chemicals companies in the world. It is predominantly owned by the RAG Foundation and was founded on 12 September 2007 as a result of restructuring of the mining and technology group RAG AG.
BX Plastics was a plastics engineering and production company. The company was one of three subsidiaries of the British Xylonite Company established by 1938. BX Plastics made xylonite and Lactoid at a plant to the south of Brantham in Suffolk, on the north bank of the River Stour across the river from Manningtree in Essex. The company was liquidated in 1999.
Ludwig Clamor Marquart was a German pharmacist and entrepreneur born in Osnabrück.
Laporte plc was a leading British chemicals business that operated from 1888 to 2000. It was listed on the London Stock Exchange and was a constituent of the FTSE 100 Index.
A substantial car industry was created in Australia in the 20th century through the opening of Australian plants by international manufacturers. The first major carmaker was Ford Australia and the first Australian-designed mass production car was manufactured by Holden in 1948. Australian manufacture of cars rose to a maximum of almost half a million in the 1970s and still exceeded 400,000 in 2004. Australia was best known for the design and production of 'large' sized passenger vehicles. By 2009 total production had fallen to around 175,000 and the Australian market was dominated by cars imported from Asia and Europe.
The Clayton Aniline Company Ltd. was a British manufacturer of dyestuffs, founded in 1876 by Charles Dreyfus in Clayton, Manchester.
Magnesium Elektron Ltd is a British materials manufacturer which produces magnesium and zirconium metals and compounds. Since 2018 it has traded as Luxfer MEL Technologies, following a series of mergers and acquisitions. It is still based in Manchester.
DIC Corporation is Japanese chemical company, specializing in the development, manufacture and sale of inks, pigments, polymers, specialty plastics and compounds and biochemicals.
A colorant is any substance that changes the spectral transmittance or reflectance of a material. Synthetic colorants are those created in a laboratory or industrial setting. The production and improvement of colorants was a driver of the early synthetic chemical industry, in fact many of today's largest chemical producers started as dye-works in the late 19th or early 20th centuries, including Bayer AG(1863). Synthetics are extremely attractive for industrial and aesthetic purposes as they have they often achieve higher intensity and color fastness than comparable natural pigments and dyes used since ancient times. Market viable large scale production of dyes occurred nearly simultaneously in the early major producing countries Britain (1857), France (1858), Germany (1858), and Switzerland (1859), and expansion of associated chemical industries followed. The mid-nineteenth century through WWII saw an incredible expansion of the variety and scale of manufacture of synthetic colorants. Synthetic colorants quickly became ubiquitous in everyday life, from clothing to food. This stems from the invention of industrial research and development laboratories in the 1870s, and the new awareness of empirical chemical formulas as targets for synthesis by academic chemists. The dye industry became one of the first instances where directed scientific research lead to new products, and the first where this occurred regularly.
