C.I. Acid black 70 Chemical Properties

EPA Substance Registry System

C.I. Acid Black 70 (8005-88-7)

C.I. Acid black 70 Usage And Synthesis

Preparation

4-(4-Aminophenyl)benzenamine (70%) and 4-(4-Amino-2-methylphenyl)-3-methylbenzenamine double nitriding, in acid conditions coupled with 4-Amino-5-hydroxynaphthalene-2,7-disulfonic acid, 2-Aminobenzenesulfonic acid diazo, in alkaline conditions and the above the products of coupling, and then and Quinoline-2,4-diol coupling.

Properties and Applications

green and black. Soluble in water for violet and grey or black. The strong sulfuric acid for navy, for violet after diluted. The dye solution to join strong hydrochloric acid purple ash brown precipitation; With strong sodium hydroxide solution have dark precipitation.

C.I. Acid black 70(8005-88-7)Related Product Information

• hexasodium hydrogen bis[4-hydroxy-3-[(2-hydroxy-5-nitro-3-sulphophenyl)azo]-6-[(sulphomethyl)amino]naphthalene-2-sulphonato(5-)]chromate(7-)
• ACID BLACK 63:1
• ACID BLACK 94
• Acid Black D
• 4-Amino-3-[[4'-[(2,7-diamino-1-naphtyl)azo]-1,1'-biphenyl-4-yl]azo]-5-hydroxy-6-[(4-nitro-2-sulfophenyl)azo]-2,7-naphthalenedisulfonic acid trisodium salt
• Acid Black 93
• Acid Black 86
• Chromate,bis[4-[[3-[(5-chloro-2-hydroxyphenyl)azo]-2,4-dihydroxyphenyl]azo]-3-hydroxy-7-nitro-1-naphthalenesulfonato]-,disodium hydrogen
• Acid Black 69