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必应染料-您身边的染料专家

Acid Black 4

Name:C.I.Acid Black 4,C.I.35420

Molecular Structure: Multi-azo class

C.I.Acid Black 4,C.I.35420,CAS 7237-45-8,1473.21,C55H38N10Na6O21S5,Silk Printing Black M

C.I.Acid Black 4,C.I.35420,CAS 7237-45-8,1473.21,C55H38N10Na6O21S5,Silk Printing Black M

Molecular Formula:C55H38N10Na6O21S5

Molecular Weight: 1473.21

CAS Registry Number:7237-45-8

Manufacturing Methods : 4,4′-Diamino-3,3′-Biphenyldisulfonic acid double nitriding, and 2-Amino-4-methylanisole (2 Moore) coupled, product to double nitriding, in alkaline conditions and 3-Amino-5-hydroxynaphthalene-2,7-disulfonic acid (1 Moore) and 4-(8-Hydroxy-6-sulfonaphthalen-2-ylamino)benzoic acid  (1 Moore) coupled.

Properties and Applications: red light black. Soluble in water for violet black, not soluble in alcohol. The strong sulfuric acid for blue, blue for red after diluted. The dye solution to join strong hydrochloric acid for dark; Add thick sodium hydroxide solution for blue-ray black.

Standard Light Fastness Soaping Persperation Fastness Oxygen bleaching Fastness to seawater
Fading Stain Fading Stain Fading Stain
ISO 4 2-3 2 1-2

List of Suppliers:

Silk Printing Black M ( IG Farbenindustrie AG )


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