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Direct Black 76

Direct Black 76 Structure
Direct Black 76 structure
CAS No.
Chemical Name:
Direct Black 76
Synonyms
Direct Black 76;C.I.Direct Black 76:C.I.35865
CBNumber:
CB69702903
Molecular Formula:
Molecular Weight:
0
MDL Number:
MOL File:
Mol file
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Direct Black 76 Chemical Properties,Uses,Production

Preparation

3-Aminonaphthalene-1,5-disulfonic acid diazo, and Naphthalen-1-amine coupling, again diazo, and 8-Aminonaphthalene-2-sulfonic acid coupling, product to diazo, in alkaline conditions and 4-Amino-5-hydroxynaphthalene-1-sulfonic acid coupling, and then diazo, and 4-Nitrobenzene-1,3-diamine coupling.

Properties and Applications

brown light grey. Soluble in water for violet to violet black, soluble in ethanol. The strong sulfuric acid for gray and blue-ray gray, diluted gray light purple for. The dye solution to join strong hydrochloric acid for galleries to violet, precipitation; Add thick, hydrogen for violet solution oxidation to violet black, precipitation.

Standard Acid Resistance Alkali Resistance Light Fastness Soaping Water
Fading Stain Fading Stain
ISO 3 5 4-5 2 2-3

Direct Black 76 Preparation Products And Raw materials

Raw materials

1-Naphthylamine-7-sulfonic acid 1-AMINO-8-NAPHTHOL-4-SULFONIC ACID 2-Amino-4,8-naphthalenedisulfonic acid 1-Naphthylamine 4-Nitro-1,3-phenylenediamine

Preparation Products

(Direct Black 76)Related Search:

Direct black 77 (C.I. 35860) 5-Amino-3-[[4'-[[4-[(8-amino-1-hydroxy-3,6-disulfo-2-naphtyl)azo]-1-naphtyl]azo]-1,1'-biphenyl-4-yl]azo]-4-hydroxy-2,7-naphthalenedisulfonic acid tetrasodium salt DIRECT BLACK 80 1,7-Naphthalenedisulfonic acid, 4-amino-6-[[4-[(2,4-diaminophenyl)azo]phenyl]azo]-5-hydroxy-, disodium salt DIRECT BLACK 9
disodium 4-amino-3-[(4-aminophenyl)azo]-6-[[4-[[4-amino-6(or 7)-sulphonatonaphthyl]azo]phenyl]azo]-5-hydroxynaphthalene-1-sulphonate 2-Naphthalenesulfonic acid, 6-amino-3-[[4'-[(4-amino-6-sulfo-1-naphthalenyl)azo]-3,3'-dimethoxy[1,1'-biphenyl]-4-yl]azo]-4-hydroxy-, disodium salt Direct black 75 (C.I. 35870) C.I. Direct Black 87

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Direct Black 76 C.I.Direct Black 76:C.I.35865