Name:C.I.Direct Brown 54,C.I.31735
Molecular Structure: trisazo class
Molecular Weight: 716.63
CAS Registry Number:8003-50-7
Manufacturing Methods : 4-(4-Aminophenyl)benzenamine double nitriding,first coupled with 2-Hydroxybenzoic acid, then with 5-Aminonaphthalene-2-sulfonic acid and 8-Aminonaphthalene-2-sulfonic acid coupling, its product to diazo, coupled with phenol.
Properties and Applications: brown. Soluble in water for yellow brown, and adequate soluble in alcohol for yellow brown to olive. In the dark for the strong sulfuric acid to blue-black, diluted for shallow olive to yellow brown. The dye solution to join strong hydrochloric acid for olive to yellow brown; Add thick sodium hydroxide solution for orange brown.
|Standard||Acid Resistance||Alkali Resistance||Light Fastness||Soaping||Water|
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