C.I. Acid Brown 84
- CAS NO.：13011-69-3
- Empirical Formula: C26H16CuN5NaO10S3-
- Molecular Weight: 741.16
- EINECS: 603-390-6
What is C.I. Acid Brown 84?
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.
Safety information for C.I. Acid Brown 84
New Products
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![sodium [3-[[3-[(3-amino-4-nitrophenyl)azo]-2,4-dihydroxyphenyl]azo]-4-hydroxybenzenesulphonato(3-)]cuprate(1-)](https://img.chemicalbook.in/CAS/20210111/GIF/13011-68-2.gif)
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