Name:C.I.Direct Violet 78,C.I.28720
Molecular Structure: Double azo class
Molecular Weight: 753.14
CAS Registry Number:5852-30-2
Manufacturing Methods : 2-Amino-5-chlorobenzenesulfonic acid diazo,Coupled with m-Toluidine , its product to diazo, and 2-(4-Aminophenyl)-6-hydroxynaphtho[2,1-d]thiazole-8-sulfonic acid coupling.
Properties and Applications: Red, purple. Moderate soluble in water for purplish red color, soluble in ethanol for product red. The strong sulfuric acid in blue, diluted red for brown. The dye solution to join strong hydrochloric acid have red light brown precipitation; Add thick Red sauce sodium hydroxide solution have precipitation.
|Standard||Acid Resistance||Alkali Resistance||Light Fastness||Soaping||Water|
List of Suppliers:
Diazo Light Violet 3RL( Bayer Group )