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Imperial Chemical Industries (ICI) was a British chemical company. It was, for much of its history, the largest manufacturer in Britain. It was formed by the merger of four leading British chemical companies in 1926. Its headquarters were at Millbank in London. ICI was a constituent of the FT 30 and later the FTSE 100 indices.
Coomassie brilliant blue is the name of two similar triphenylmethane dyes that were developed for use in the textile industry but are now commonly used for staining proteins in analytical biochemistry. Coomassie brilliant blue G-250 differs from Coomassie brilliant blue R-250 by the addition of two methyl groups. The name "Coomassie" is a registered trademark of Imperial Chemical Industries.
Blackley is a suburban area of Manchester, England. Historically in Lancashire, it is approximately 4.5 miles (7.2 km) north of Manchester city centre, on the River Irk.
In a reactive dye, a chromophore contains a substituent that reacts with the substrate. Reactive dyes have good fastness properties owing to the covalent bonding that occurs during dyeing. Reactive dyeing is the most important method for coloring cellulose fibers. Reactive dyes can also be applied on wool and nylon; in the latter case they are applied under weakly acidic conditions. Reactive dyes have a low utilization degree compared to other types of dyestuff, since the functional group also bonds to water, creating hydrolysis.
Kynoch was a manufacturer of ammunition, later incorporated into ICI but remaining as a brand name for sporting cartridges.
Nobel Enterprises is a chemicals business that used to be based at Ardeer, in the Ayrshire town of Stevenston, in Scotland. Specialising in nitrogen-based propellants and explosives and nitrocellulose-based products such as varnishes and inks. It was formerly ICI Nobel, a division of the chemicals group ICI, but was then sold to Inabata, a Japanese trading firm. The business was sold on to Chemring Group in 2005 and is now a Scottish Company, part of Chemring Group. Stefan Donald is currently the lead engineer for the ongoing regeneration project.
Francis Leslie Rose was a British chemist.
Tata Chemicals Europe is a UK-based chemicals company that is a subsidiary of Tata Chemicals Limited, itself a part of the India-based Tata Group. Its principal products are soda ash, sodium bicarbonate, calcium chloride and associated alkaline chemicals.
John Brownlee Lonsdale, 1st Baron Armaghdale, known as Sir John Lonsdale, Bt, between 1911 and 1918, was a British businessman and Conservative politician.
British Dyestuffs Corporation Ltd (BDC) was a British company formed in 1919 from the merger of British Dyes Ltd with Levinstein Ltd. The British Government was the company's largest shareholder, and had two directors on the board.
John Donald Rose FRS was a British industrial chemist, who worked for Imperial Chemical Industries from 1935 to 1972. His posts at ICI included director of research and chairman of the paints division. He was also Master of the Worshipful Company of Salters.
Alcian blue is any member of a family of polyvalent basic dyes, of which the Alcian blue 8G has been historically the most common and the most reliable member. It is used to stain acidic polysaccharides such as glycosaminoglycans in cartilages and other body structures, some types of mucopolysaccharides, sialylated glycocalyx of cells etc. For many of these targets it is one of the most widely used cationic dyes for both light and electron microscopy. Use of alcian blue has historically been a popular staining method in histology especially for light microscopy in paraffin embedded sections and in semithin resin sections. The tissue parts that specifically stain by this dye become blue to bluish-green after staining and are called "Alcianophilic". Alcian blue staining can be combined with H&E staining, PAS staining and van Gieson staining methods. Alcian blue can be used to quantitate acidic glycans both in microspectrophotometric quantitation in solution or for staining glycoproteins in polyacrylamide gels or on western blots. Biochemists had used it to assay acid polysaccharides in urine since the 1960s for diagnosis of diseases like mucopolysaccharidosis but from 1970's, partly due to lack of availability of Alcian and partly due to length and tediousness of the procedure, alternative methods had to be developed e.g. Dimethyl methylene blue method.
The Clayton Aniline Company Ltd. was a British manufacturer of dyestuffs, founded in 1876 by Charles Dreyfus in Clayton, Manchester.
Sir James Baddiley FRS FRSE was a British biochemist.
Alfred Spinks, was a British chemist and biologist.
Arthur George Green FRS was a British organic chemist.
Hexagon Tower is a specialist science and technology facility located in Blackley, Manchester, England.
Dr Cecil John Turrell Cronshaw FRSE DSc was a British industrial chemist, Manager of the Manchester Ship Canal and Director of the chemical giant, ICI. He was involved in the evolution of modern industrial dyes.
Krishnaswami Venkataraman FNA, FASc, FNASc, FRSC (1901–1981), popularly known as KV, was an Indian organic chemist and the first Indian director at National Chemical Laboratory and University Department of Chemical Technology, Mumbai (UDCT). He was known for the demonstration of an organic chemical reaction involving 2-acetoxyacetophenones which later came to be known as the Baker–Venkataraman rearrangement and for his contributions in developing NCL into one of the leading research centres in organic chemistry. He was an elected fellow of several science academies which included the Royal Society of Chemistry, Academy of Sciences Leopoldina, USSR Academy of Sciences, Prussian Academy of Sciences, Polish Academy of Sciences, Indian Academy of Sciences, and the Indian National Science Academy. The Government of India awarded him the Padma Bhushan, the third highest Indian civilian award, in 1961.
Ivan Levinstein (1845-1916) was a German-born British chemist who pioneered the manufacture of synthetic dyes and helped develop the British chemical industry in the late nineteenth century. He was born in Charlottenburg, Germany, the son of a Berlin Calico manufacturer, studied chemistry at the Gewerbeinstitut, which later became the Technical University of Berlin, before joining the family business. He obtained his first patent in Germany in 1863 for improvements in manufacturing coal tar dyes.
References
- ↑ Levinstein Ltd., 1890-1919. ICI Dyestuffs Division and predecessor companies archive. University of Manchester Library. GB 133 ICI/8
