Direct black 77 (C.I. 35860)

Product Name
Direct black 77 (C.I. 35860)
CAS No.
6409-85-4
Chemical Name
Direct black 77 (C.I. 35860)
Synonyms
Direct black 77 (C.I. 35860);C.I.Direct Black 77:C.I.35860
CBNumber
CB91485841
Molecular Formula
C42H25N11Na4O15S4
Formula Weight
1143.93168
MOL File
6409-85-4.mol
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Hazard and Precautionary Statements (GHS)

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Direct black 77 (C.I. 35860) Chemical Properties,Usage,Production

Preparation

2-Aminobenzene-1,4-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

green light grey. water-soluble ash light black, soluble in ethanol. The strong sulfuric acid for gray light black, grey brown for purple diluted. Dye with strong hydrochloric acid solution for violet black, precipitation; Add thick sodium hydroxide solution for Gray light black, precipitation.

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

Direct black 77 (C.I. 35860) Preparation Products And Raw materials

Raw materials

Preparation Products

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