dye|World dye variety

Name:C.I.Acid Black 17,C.I.20350

Molecular Structure: Double azo class

C.I.Acid Black 17,C.I.20350,CAS 2668-05-5,621.55,C26H17N5Na2O7S2,Acid Chrome Blue-Black R,Black A

Molecular Formula:C₂₆H₁₇N₅Na₂O₇S₂

Molecular Weight: 621.55

CAS Registry Number:2668-05-5

Manufacturing Methods : 4-Aminobenzenesulfonic acid diazo, in acid conditions and 4-Amino-5-hydroxynaphthalene-1-sulfonic acid coupling, and then Naphthalen-1-amine diazo in alkaline conditions, and single accidentally coupled nitrogen compounds.

Properties and Applications: red light black. Soluble in water for dark, slightly soluble in alcohol. The strong sulfuric acid for blue, dilute appears after the granular blue precipitation. In water solution to join hydrochloric acid for blue light green, spare part will precipitate out; Add thick sodium hydroxide solution to blue. Suitable for wool, polyamide fiber dyeing and printing.

List of Suppliers:

Acid Chrome Blue-Black R(Fenchem Enterprises Ltd)

Palatine Black A( Badische Anilin-und Soda Fabrik )