Direct Violet 64
Name:C.I.Direct Violet 64,C.I.28200
Molecular Structure: Double azo class
C.I.Direct Violet 64,C.I.28200,CAS 5893-30-1,719.65,C31H23N5Na2O9S2,Direct Light Violet MB
Molecular Formula:C31H23N5Na2O9S2
Molecular Weight: 719.65
CAS Registry Number:5893-30-1
Manufacturing Methods : 4-Aminobenzenesulfonic acid diazo, and 2-Amino-4-methylanisole coupling, its product to diazo, and 7-Benzamido-4-hydroxynaphthalene-2-sulfonic acid coupling.
Properties and Applications: red light purple. Soluble in water for red Violet. The strong sulfuric acid for blu-ray green, blue purple after diluted precipitation. The dye solution to join strong hydrochloric acid blue precipitation; Sodium hydroxide solution to blue precipitation.
| Standard | Acid Resistance | Alkali Resistance | Light Fastness | Soaping | Water | ||
| Fading | Stain | Fading | Stain | ||||
| ISO | 2-3 | 4 | 5 | 2-3 | 3 | ||
List of Suppliers:
Direct Light Violet MB( Industria Chimica Dott )