Dyes, dyestuffs

Uses Dispersant for dyes, dyestuffs, inks, latex paints, wax emulsions, wallboard coating, ore flotation... 

Uses Explosives munitions matches leather industry electric batteries etching copper mfg. of colored glass mordant in textile dyeing dyestuffs reagent antiseptic astringent... 

II. Milling Dyes Dyestuffs have high molecular weights are applied from weak acidic dye baths. 

III. Supermilling Dyes Dyestuffs have high molecular weights are applied from neutral dye baths, usually with an auxiliary to help ensure level dyeings. Attributes Excellent wash and lightfastness properties. 

Potassium naphthalene-formaldehyde sulfonate Uses Dispersant for dyes, dyestuffs, inks, latex paints, wax emulsions, wallboard coating, ore flotation grinding aid Trade Names Daxad 11 KLS Potassium naphthalene sulfonate Uses Dispersant sec. emulsifier for emulsion polymerization Potassium octadecanoate. See Potassium stearate Potassium 9-octadecenoate Potassium cis-9-octadecenoic acid. See Potassium oleate... 

Mordant acid dyes combine simultaneously with the mordanting agent (generally Cr(OH)j) and the fibre the dyestuff generally contains ortho OH -azo or OH-OH groups. 

It is an important dyestuffs intermediate. It condenses with chloroethanoic acid to give phenylglycine-o-carboxylic acid for the synthesis of indigo. It can be diazotized and used as a first component in azo-dyes it condenses also with chloroanthraquinones to give intermediates for anthraquinone dyes. 

It is a valuable dyestuffs intermediate. When fused with KOH, two molecules of benz-anthrone combine at the positions marked above to give a dibenzanthrone which is in itself a vat dye. Also used as an intermediate for the preparation of the valuable Caledon Jade Green. 

Bismarck brown, Basic Brown 1 Basic azo-dyestuff, dyes wool (reddish brown), used for cotton with tannin as mordant. Used as hair dye. 

It is an important dyestuffs intermediate, being used as a first component in azo-dyes and also as a source of p-phenylenediamine. 

Procion dyes A group of azo dyestuffs which can form covalent bonds to cellulose by reactive groups. 

It is extensively used in the preparation of dyestuffs. Combines with diazonium salts to form oxyazo-colouring matters. Gives rise to fluorescein dyes on fusion with phthalic anhydride. Used for production of plasticizers, resins, adhesives. 

As early as 2500 bce m India indigo was used to dye cloth a deep blue The early Phoenicians discovered that a purple dye of great value Tyrian purple could be extracted from a Mediterranean sea snail The beauty of the color and its scarcity made purple the color of royalty The availability of dyestuffs underwent an abrupt change m 1856 when William Henry Perkin an 18 year old student accidentally discovered a simple way to prepare a deep purple dye which he called mauveme from extracts of coal tar This led to a search for other synthetic dyes and forged a permanent link between industry and chemical research... 

In spite of the rationale on which the testing of dyestuffs as antibiotics rested subsequent research re vealed that the antibacterial properties of Prontosil had nothing at all to do with its being a dye In the body Prontosil undergoes a reductive cleavage of its azo linkage to form sulfanilamide which is the sub stance actually responsible for the observed biological activity This is why Prontosil is active in vivo but not in vitro... 

Qumones are colored p benzoqumone for example is yellow Many occur natu rally and have been used as dyes Alizarin is a red pigment extracted from the roots of the madder plant Its preparation from anthracene a coal tar derivative m 1868 was a significant step m the development of the synthetic dyestuff industry... 

Adantic Chemical Corp. C. Lever Co. International Dyestuffs Corp. BASF Wyandotte Corp. Dye Specialties,... 

Adantic Chemical Corp. Ameri-can Cyariimid Co. Buffalo Color Corp. Sun Chemical Corp. Leeben Color, Div. of Tricon Colors, Inc. Intema-tional Dyestuffs Corp. BASF Wyandotte Corp. Dye Special-ties, Inc. Mobay Chemical Corp. American Cyariimid Co. C. Lever Co. Buffalo Color Corp. International Dyestuffs Corp. Dye Specialties, Inc. CIBA-GEIGY-Corp. Sun Chemical Corp. 

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