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必应染料-您身边的染料专家

Direct Blue 51

Name:C.I.Direct Blue 51,C.I.30340

Molecular Structure: trisazo class

C.I.Direct Blue 51,C.I.30340,CAS 6360-65-2,1003.71,C38H23Cl2N8Na3O11S3,Chloramine Blue HW

C.I.Direct Blue 51,C.I.30340,CAS 6360-65-2,1003.71,C38H23Cl2N8Na3O11S3,Chloramine Blue HW

Molecular Formula:C38H23Cl2N8Na3O11S3

Molecular Weight: 1003.71

CAS Registry Number:6360-65-2

Manufacturing Methods : 2,5-Dichlorobenzenamine diazo, in acid conditions and 4-Amino-5-hydroxynaphthalene-2,7-disulfonic acid coupling, 4-(4-Aminophenyl)benzenamine double nitriding, first in alkaline conditions and formation of accidentally nitrogen compounds and then in alkaline conditions and 3-Hydroxynaphthalene-2,7-disulfonic acid coupling.

Properties and Applications: navy blue light to dark. Soluble in water to blue. The strong sulfuric acid in blue, purple and blue after diluted precipitation.

Standard Acid Resistance Alkali Resistance Light Fastness Soaping Water
Fading Stain Fading Stain
ISO 3 4-5 4 2 2-3

List of Suppliers:

Chloramine Blue HW( Sandoz Ltd )


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