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Coal-tar dye base
Answer for the clue "Coal-tar dye base ", 7 letters:
aniline
Alternative clues for the word aniline
Word definitions for aniline in dictionaries
WordNet
Word definitions in WordNet
n. oily poisonous liquid amine obtained from nitrobenzene and used to make dyes and plastics and medicines [syn: aniline oil , aminobenzine , phenylamine ]
Wikipedia
Word definitions in Wikipedia
Aniline is a toxic organic compound with the formula CHNH. Consisting of a phenyl group attached to an amino group , aniline is the prototypical aromatic amine. Its main use is in the manufacture of precursors to polyurethane and other industrial chemicals. ...
Usage examples of aniline.
Aniline when pure is a colorless liquid, possessing a rather ammoniacal odor.
Fritsche in the same year by the distillation of indigo with caustic potash developed a product which he also called aniline, the name being derived from the Portuguese word anil, meaning indigo.
Runge in 1834 claims to have detected it in coal tar and called it kyanol, which after oxidation became an insoluble black pigment and known as aniline black.
Among them are aniline violet, iodine violet, madder, alkanet, orchil and logwood.
Black urine is generally caused by the ingestion of pigmented food or drugs, such as carbolic acid and the anilines.
Will the world open in splendent colour, spirit-blue, that aniline blue, ripe indigo or the tone of an unclouded sky?
Log-wood ink marks are mostly reddened by oxalic acid, and alizarin marks become bluish, but aniline inks are unaffected.
With hydrochloric acid, logwood ink marks turn reddish or reddish-gray, alizarin marks greenish, and aniline ink marks reddish or brownish-gray.
Springmuhl in 1873 obtained an accessory product in the artificial manufacture of alizarin out of anthracene, from which a beautiful blue was made, superior in many respect to the aniline blues.
Analysis and Valuation of the more important Chemicals used in Paper Making, including Lime, Caustic Soda, Sodium Carbonate, Mineral Acids, Bleach Antichlor, Alum, Rosin and Rosin Size, Glue Gelatin and Casein, Starch, China Clay, Blanc Fixe, Satin White and other Loading Materials, Mineral Colours and Aniline Dyes.
Philadelphia, at Marcus Hook, on the busy Delaware river where the ships of the world are being made, the Benzol Products Company turns out large quantities of aniline oil.
The intensity of some of the aniline colors may be indicated by the fact that a single grain of eosine in ten millions of water exhibits a definite rose-pink color.
These are the inks made from aniline and other dyes which are held in solution in water.
Of late, the composition of writing inks has become far less constant, aniline and other dyes being frequently employed, and other metallic salts substituted for the ferroussulphate formerly invariably used.
Log-wood ink marks are mostly reddened by oxalic acid, and alizarin marks become bluish, but aniline inks are unaffected.