Name:C.I.Direct Brown 60,C.I.22325
Molecular Structure: Double azo class
Molecular Weight: 627.54
CAS Registry Number:6426-57-9
Manufacturing Methods : 4-(4-Aminophenyl)benzenamine double nitriding, first coupled with 2-Hydroxybenzoic acid, and then in acetic acid medium and 6-Amino-7-hydroxynaphthalene-2-sulfonic acid coupling.
Properties and Applications: yellow light brown. Moderate soluble in water for yellow brown, slightly soluble in ethanol is palm light yellow to olive. The strong sulfuric acid for blue-ray in black, yellow light brown for diluted. The dye solution to join strong hydrochloric acid for olive brown, have precipitation; Add thick sodium hydroxide solution for orange brown.
|Standard||Acid Resistance||Alkali Resistance||Light Fastness||Soaping||Water|
List of Suppliers:
Benzo Chrome Brown 5G( Bayer Group )