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Acid Blue 42

Name:C.I.Acid Blue 42,C.I.17255

Molecular Structure: Single azo,Metal Complexes

C.I.Acid Blue 42,C.I.17255,CAS 6656-04-8,528.38,C16H10N4Na2O10S2

C.I.Acid Blue 42,C.I.17255,CAS 6656-04-8,528.38,C16H10N4Na2O10S2

Molecular Formula:C16H10N4Na2O10S2

Molecular Weight: 528.38

CAS Registry Number:6656-04-8

Manufacturing Methods :  2-Amino-4-nitrophenol diazo, and 4-Amino-5-hydroxynaphthalene-1,3-disulfonic acid coupling, then use copper sulfate processing, make its formation copper complex,

Properties and Applications:  red light navy blue. Soluble in water for red light purple, hardly soluble in alcohol. The strong sulfuric acid to red light purple, diluted into product red. In water solution to join strong hydrochloric acid for ruby red; Add thick sodium hydroxide solution for purple.

Standard Light Fastness Soaping Persperation Fastness Oxygen bleaching Fastness to seawater
Fading Stain Fading Stain Fading Stain
ISO 6-7 3 3 2 1 2

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