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必应染料-您身边的染料专家

Direct Blue 8

Name:C.I.Direct Blue 8,C.I.24140

Molecular Structure: Double azo class

C.I.Direct Blue 8,C.I.24140,CAS 2429-71-2,758.69,C34H24N4Na2O10S2,Direct Blue G,Pontamine Blue AX

C.I.Direct Blue 8,C.I.24140,CAS 2429-71-2,758.69,C34H24N4Na2O10S2,Direct Blue G,Pontamine Blue AX

Molecular Formula:C34H24N4Na2O10S2

Molecular Weight: 758.69

CAS Registry Number:2429-71-2

Manufacturing Methods : 3,3′-Dimethoxylbenzidine  double nitride, and 4-Hydroxynaphthalene-1-sulfonic acid (2 Moore) coupled.

Properties and Applications: blue. Soluble in water for purple red to blue, soluble in soluble fiber element, soluble in ethanol, insoluble in other organic solvents. The strong sulfuric acid for blue, blue for red after diluted. The dye solution to join strong hydrochloric acid for purple, have precipitation; Add thick sodium hydroxide solution for red light purple.

Standard Acid Resistance Alkali Resistance Light Fastness Soaping Water
Fading Stain Fading Stain
ISO 4-5 2 1 1-2 1-2
AATCC 5 1 1-2 1 1

List of Suppliers:

Atul Direct Blue G ( Atul Limited )

Blue G(United Chemie)

Dinamine Blue [G](Dintex Dyechem Ltd)

Direct Blue G (Amar Impex)

Pontamine Blue AX(Classic Dyestuffs Inc)


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