Direct Black 11 Usage And Synthesis

Preparation

4-(4-Aminophenyl)benzenamine double nitriding, and aniline diazo, in alkaline conditions and 4-Amino-5-hydroxynaphthalene-2,7-disulfonic acid?and products in the coupling acid conditions coupled, then and 4-Chlorobenzene-1,3-diamine coupling.

Properties and Applications

green and black. For to black soluble in water, soluble in ethanol for blue-ray gray. The strong sulfuric acid solution for the red light in blue, diluted red for sauce; In strong hydrochloric acid for purple solution. The dye solution to join strong hydrochloric acid have sauce red precipitate; Add thick sodium hydroxide solution for blue-ray gray, precipitation.

Direct Black 11()Related Product Information

• 2-Naphthalenesulfonic acid, 6-amino-3-[[4-[[4-[[4-amino-6(or 7)-sulfo-1-naphthalenyl]azo]phenyl]azo]-2-methoxy-5-methylphenyl]azo]-4-hydroxy-, disodium salt
• 3,3'-[[1,1'-Biphenyl]-4,4'-diylbis(azo)]bis[4-hydroxy-5-[(2-hydroxy-1-naphthalenyl)azo]naphthalene-2,7-disulfonic acid disodium] salt
• Direct Black 103
• Glycine, N-[5-amino-4-[2-[4-[2-[[2-(2,4-diamino-5-methylphenyl)diazenyl]hydroxysulfo-2-naphthalenyl]diazenyl]phenyl]diazenyl]-2-methylphenyl]-, sodium salt (1:2)
• 2-Naphthalenesulfonic acid, 5(or 8)-[(2,8-dihydroxy-6-sulfo-1-naphthalenyl)azo]-8(or 5)-[[4-(phenylazo)-6(or 7)-sulfo-1-naphthalenyl]azo]-, trisodium salt
• 2-Naphthalenesulfonic acid, 4-hydroxy-3-[(2-hydroxy-4-nitrophenyl)azo]-7-[(8-hydroxy-5-quinolinyl)azo]-, monosodium salt
• Benzoic acid, 2-[[1-amino-7-[[4-[[6-amino-5-[(3-carboxy-4-hydroxyphenyl)azo]-1-hydroxy-3-sulfo-2-naphthalenyl]azo]-2-methoxyphenyl]azo]-8-hydroxy-3,6-disulfo-2-naphthalenyl]azo]-5-[[6-amino-5-[(3-carboxy-4-hydroxyphenyl)azo]-1-hydroxy-3-sul
• DIRECT BLACK 112
• Solophenyl Grey NGL