Acid Violet 20
Name:C.I.Acid Violet 20,C.I.16625
Molecular Structure: Single azo class
Molecular Formula:C19H15N3Na2O9S2
Molecular Weight: 539.45
CAS Registry Number:5850-61-3
Manufacturing Methods : N-(4-amino-3-methylphenyl)acetamide diazo, and 4,5-Dihydroxynaphthalene-2,7-disulfonic acid coupling.
Properties and Applications: red light purple. Soluble in water for red light purple, slightly soluble in alcohol. The strong sulfuric acid for purple, diluted the red. In aqueous solution to join strong sodium hydroxide solution into purple.
Standard | Light Fastness | Soaping | Persperation Fastness | Oxygen bleaching | Fastness to seawater | |||
Fading | Stain | Fading | Stain | Fading | Stain | |||
ISO | 4-5 | 2 | 4 | 2-3 | 2 | 2-3 |
List of Suppliers:
Azo Wool Violet 7R( Farbwerke vorm. Meister Lucius &Brtining )
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