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必应染料-您身边的染料专家

Direct Violet 72

Name:C.I.Direct Violet 72,C.I.28270

Molecular Structure: Double azo class

C.I.Direct Violet 72,C.I.28270,CAS 5873-30-3,762.72,C33H28N6Na2O9S2,Printing Black I3B,Diazo Light Violet TL

C.I.Direct Violet 72,C.I.28270,CAS 5873-30-3,762.72,C33H28N6Na2O9S2,Printing Black I3B,Diazo Light Violet TL

Molecular Formula:C33H28N6Na2O9S2

Molecular Weight: 762.72

CAS Registry Number:5873-30-3

Manufacturing Methods : 2-Amino-3,5-dimethylbenzenesulfonic acid diazo, and 2-Amino-4-methylanisole coupling, its product to diazo, and 7-(4-Aminobenzamido)-4-hydroxynaphthalene-2-sulfonic acid coupling.

Properties and Applications:  dark purple. Soluble in water for purplish red color, soluble in ethanol for product red. The strong sulfuric acid in dark green light for blue, for purple diluted. The dye solution with strong hydrochloric acid have precipitation of dark; Add thick sodium hydroxide solution for dark purple.

Standard Acid Resistance Alkali Resistance Light Fastness Soaping Water
Fading Stain Fading Stain
ISO 2-3 4 4 4 4

List of Suppliers:

Arlindone Printing Black I3B ( Arlabs Ltd )

Diazo Light Violet TL( IG Farbenindustrie AG )

 


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