Name:C.I.Acid Brown 20,C.I.17640
Molecular Structure: Single azo class
Molecular Weight: 570.59
CAS Registry Number: 6369-33-1
Manufacturing Methods : N-(3-amino-4-methylphenyl)-N-ethylacetamide diazo, in alkaline conditions and 4-Hydroxy-6-(4-methoxyphenylamino)naphthalene-2-sulfonic acid coupling.
Properties and Applications: ark brown. Soluble in water for brown, and adequate soluble in alcohol for brown. The strong sulfuric acid for cherry red, for brown after diluted. In water solution to join strong hydrochloric acid with olives brown precipitation; Add thick sodium hydroxide solution for red orange brown.
|Standard||Light Fastness||Soaping||Persperation Fastness||Oxygen bleaching||Fastness to seawater|
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