coal-tar dye

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• coal-tar dye — ˈ ̷ ̷ˌ ̷ ̷ noun : a dye made from a coal tar derivative; broadly : any synthetic organic dye compare aniline dye …   Useful english dictionary

• Coal tar — A thick, black, tarry liquid, obtained by the distillation of bituminous coal in the manufacture of illuminating gas; used for making printer s ink, black varnish, etc. It is a complex mixture from which many substances have been obtained,… …   The Collaborative International Dictionary of English

• Coal gasification — is the process of producing coal gas, a type of syngas–a mixture of carbon monoxide (CO), hydrogen (H2), carbon dioxide (CO2) and water vapour (H2O)–from coal. Coal gas, which is a combustible gas, was traditionally used as a source of energy for …   Wikipedia

• dye — dyable, dyeable, adj. dyer, n. /duy/, n., v., dyed, dyeing. n. 1. a coloring material or matter. 2. a liquid containing coloring matter, for imparting a particular hue to cloth, paper, etc. 3. color or hue, esp. as produced by dyeing. 4. of the… …   Universalium

• Coal gas — Towngas redirects here. For the company in Hong Kong trading as Towngas , see The Hong Kong and China Gas Company Limited. See also: Coal gasification and Coal seam gas Coal gas (also town gas and illumination gas) is a flammable gaseous… …   Wikipedia

• coal — noun 1 black mineral ADJECTIVE ▪ clean, smokeless ▪ hard ▪ soft ▪ brown ▪ bituminous …   Collocations dictionary

• dye — A stain or coloring matter; a compound consisting of chromophore and auxochrome groups attached to one or more benzene rings, its color being due to the chromophore and its dyeing affinities to the auxochrome. Dyes are used for intravital… …   Medical dictionary

• Natural dye — Skeins of wool colored with natural plant dyes. Natural dyes are dyes or colorants derived from plants, invertebrates, or minerals. The majority of natural dyes are vegetable dyes from plant sources – roots, berries, bark, leaves, and …   Wikipedia

• Amaranth (dye) — Chembox new ImageFile=Amaranth new.png ImageSize=200px IUPACName=trisodium (4E) 3 oxo 4 [(4 sulfonato 1 naphthyl)hydrazono] naphthalene 2,7 disulfonate OtherNames=FD C Red No. 2, E123, C.I. Food Red 9, Acid Red 27, Azorubin S, C.I. 16185 Section1 …   Wikipedia

• aniline dye — n. 1. any dye made from aniline 2. any dye that is chemically like aniline; commonly, any dye produced synthetically from coal tar products …   English World dictionary

• aniline dye — an′iline dye n. chem. any of a large number of synthetic dyes derived from aniline, usu. obtained from coal tar • Etymology: 1860–65 …   From formal English to slang