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Acid Black 3

Name:C.I.Acid Black 3,C.I.27260

Molecular Structure:

C.I.Acid Black 3,C.I.27260,CAS 4197-00-6,860.69,C30H16N4Na4O13S4

C.I.Acid Black 3,C.I.27260,CAS 4197-00-6,860.69,C30H16N4Na4O13S4

Molecular Formula:C30H16N4Na4O13S4

Molecular Weight: 860.69

CAS Registry Number:4197-00-6

Manufacturing Methods : 7-Aminonaphthalene-1,3-disulfonic acid diazo, and Naphthalen-1-amine coupling, again diazo, coupled with 3-Hydroxynaphthalene-2,7-disulfonic acid.

Properties and Applications:  the light black. Soluble in water for purple, slightly soluble in alcohol. The strong sulfuric acid for gray, diluted into purple. In water solution to join strong hydrochloric acid for blue; Add thick sodium hydroxide solution to blue.

Standard Light Fastness Soaping Persperation Fastness Oxygen bleaching Fastness to seawater
Fading Stain Fading Stain Fading Stain
ISO 6 3 4 3-4 4 4 3

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