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Mordant Blue 31

Name:C.I.Mordant Blue 31,C.I.16675

Molecular Structure: Single azo class

C.I.Mordant Blue 31,C.I.16675,CAS 3270-25-5,586.42,C16H9N2Na3O12S3,Magracrom Blue R

C.I.Mordant Blue 31,C.I.16675,CAS 3270-25-5,586.42,C16H9N2Na3O12S3,Magracrom Blue R

Molecular Formula:C16H9N2Na3O12S3

Molecular Weight: 586.42

CAS Registry Number:3270-25-5

Manufacturing Methods :  3-Amino-4-hydroxybenzenesulfonic acid diazotization, and 4,5-Dihydroxynaphthalene-2,7-disulfonic acid coupling.

Properties and Applications:  red light navy blue. Soluble in water and ethanol. In concentrated sulfuric acid to purple, dilution after blue light pink; In concentrated nitric acid for dark orange to yellow brown. Dye aqueous solution and sodium hydroxide as yellow solution.

Standard Ironing Fastness Light Fastness Fulling Persperation Fastness Soaping Water
Alkali Acid
ISO 4-5 5 5 2-3 4-5 5 5

List of Suppliers:

Magracrom Blue R( Laboratory for the Industrial Application of Dyes )


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