dye|World dye variety

Name:C.I.Direct Blue 231,C.I.23830

Molecular Structure: Double azo class

C.I.Direct Blue 231,C.I.23830,CAS 2609-87-2,756.72,C34H26N6Na2O8S2

Molecular Formula:C₃₄H₂₆N₆Na₂O₈S₂

Molecular Weight: 756.72

CAS Registry Number:2609-87-2

Manufacturing Methods : 3,3′-Dimethylbenzidine double nitriding, in alkaline conditions and 4-Amino-5-hydroxynaphthalene-1-sulfonic acid (2 Moore) coupled

Properties and Applications: olourful green light blue. Soluble in water for violet blue, soluble in ethanol for blue: the strong sulfuric acid for blue, purple for blu-ray diluted. The dye solution to join strong hydrochloric acid have dark purple precipitation; Add thick sodium hydroxide solution the same color

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