dye|World dye variety

Name:C.I.Direct Blue 14,C.I.23850

Molecular Structure: Double azo class

C.I.Direct Blue 14,C.I.23850,CAS 72-57-1,960.81,C34H24N6Na4O14S4,Direct Blue NB-2BG,Blue 3B

Molecular Formula:C₃₄H₂₄N₆Na₄O₁₄S₄

Molecular Weight: 960.81

CAS Registry Number:72-57-1

Manufacturing Methods :  3,3′-Dimethylbenzidine double nitriding, in alkaline conditions and 4-Amino-5-hydroxynaphthalene-2,7-disulfonic acid(2 Moore) coupled.

Properties and Applications:  blue. Blue gray powder. Soluble in water for blue, slightly soluble in soluble fiber element, insoluble in other organic solvents. The strong sulfuric acid in dark green light for blue, diluted into a red light blue; In the light of nitric acid for palm gray solution. The dye solution to join a red sulfuric acid 10% change; Add thick sodium hydroxide solution for red light purple.

List of Suppliers:

Atul Direct Blue NB-2BG ( Atul Limited )

Chloramine Blue 3B(Classic Dyestuffs Inc)

Kemanarect Blue( Karsandas Mavji )

Niagara Blue 3B 200%(Classic Dyestuffs Inc)

Trypan Blue(Simpsons (UK) Ltd)