C.I. Acid Brown 84

CAS No.
13011-69-3
Chemical Name:
C.I. Acid Brown 84
Synonyms
Acid Brown 84;C.I. Acid Brown 84;C.I.Acid Brown 84:C.I.20255
CBNumber:
CB04777179
Molecular Formula:
C26H16CuN5NaO10S3-
Molecular Weight:
741.16
MDL Number:
MOL File:
13011-69-3.mol

C.I. Acid Brown 84 Chemical Properties,Uses,Production

Preparation

3-Amino-4-chlorobenzenesulfonic acid diazo, Coupled with resorcinol, and then in the copper sulfate and sodium hydroxide solution heating, make it into copper complex, and then and after diazo 2-(4-Aminophenyl)-6-methylbenzo[d]thiazole-7-sulfonic acid coupling. In the copper chloride complexation processes by hydroxyl replaced.

Properties and Applications

red light brown. Soluble in water for yellow brown, in tiny solubility in ethanol. The strong sulfuric acid in red orange for brown, after dilute for tan to yellow brown. In water solution to join strong hydrochloric acid for yellow brown; Add thick sodium hydroxide solution for red orange brown. Mainly used for leather color.

C.I. Acid Brown 84 Preparation Products And Raw materials

C.I. Acid Brown 84 Acid Brown 84 C.I.Acid Brown 84:C.I.20255 13011-69-3