Acid violet 90

Name	Acid violet 90
Synonyms	Violet 90 Bordeaux MB Acid violet 90 Acid violet 90 Ambilan Bordeaux MB Basantol Bordeaux 415 Acid violet 90 (C.I. 18761) sodium 3-hydroxy-4-(5-hydroxy-3-methyl-1-phenyl-pyrazol-4-yl)azo-naphthalene-1-sulfonate Disodium hydrogen bis(4-((4,5-dihydro-3-methyl-5-oxo-1-phenyl-1H-pyrazol-4-yl)azo)-3-hydroxynaphthalene-1-sulphonato(3-))chromate(3-) disodium hydrogen bis[4-[(4,5-dihydro-3-methyl-5-oxo-1-phenyl-1H-pyrazol-4-yl)azo]-3-hydroxynaphthalene-1-sulphonato(3-)]chromate(3-) Chromate (3-), bis [4-[(4, 5-dihydro-3-methyl-5-oxo-1-phenyl-1H-pyrazol-4-yl) azo]-3-hydroxy-1-naphthalenesulfonalo (3-)], disodium hydrogen
CAS	6408-29-3 1007172-44-2
EINECS	229-052-4

Molecular Formula	C40H27CrN8O10S2.2Na
Molar Mass	941.807
Vapor Presure	0Pa at 25℃
Physical and Chemical Properties	Red Violet powder. Soluble in water and ethanol. The aqueous solution was blue-red, and after adding hydrochloric acid, it turned orange-red, accompanied by red precipitation; After adding sodium hydroxide, it was red, and there was precipitation. In concentrated sulfuric acid in blue red, diluted red.

Use	neutral jujube red D-BN is used for dyeing wool, silk, nylon, wool, silk, direct printing of viscose fabrics, but not discharge. Also used for leather coloring.
production method	1-amino-2-naphthol-4-sulfonic acid and 1-phenyl-3-methyl-5-pyrazolone are used as raw materials. The former is first diazotized, coupled with the latter, and then complexed with sodium chromium salicylate to give the product. Filtration, drying to obtain the finished product..

Last Update：2024-04-09 21:01:54

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