dye|World dye variety

Name:C.I.Direct Blue 22,C.I.24280

Molecular Structure: Double azo class

C.I.Direct Blue 22,C.I.24280,CAS 2586-57-4,773.7,C34H25N5Na2O10S2,Direct Blue RW

Molecular Formula:C₃₄H₂₅N₅Na₂O₁₀S₂

Molecular Weight: 773.7

CAS Registry Number:2586-57-4

Manufacturing Methods : 3,3′-Dimethoxylbenzidine double nitriding, first and 4-Amino-5-hydroxynaphthalene-1,3-disulfonic acid coupling, and then and Naphthalen-2-ol coupling.

Properties and Applications: blue. Soluble in water for blue, soluble in soluble fiber element, insoluble in organic solvents. The strong sulfuric acid for green light blue, purple precipitation after diluted; In the light of nitric acid for palm gray solution. The dye solution to join for blue-ray red rare hydrochloric acid; Add sodium hydroxide for purple.

List of Suppliers:

Direct Blue RW( S A des Ets. Steiner )