Direct Fast Black GF Direct Black 22

Product Description

Product Name: Direct Black 22
C.I. No.: 35435
CAS No.: 6473-13-8
Molecular Formula: C44H32N13Na3O11S3
Molecular Weight: 1083.97
Relative Name:
Direct Fast Black GF;Direct Black L-2BG;Aizen Primula Black ACH;Benzanil Fast Black 2G;Benzonerol A;Benzonerol AFA extra;Carbide Fast Black G;Chlorazol Black GF;Chrome Leather Black GA;Cuprofix Black NF;Diazol Fast Black J;Diphenyl Black FG;Direct Black 22;Direct Fast Black B;Direct Fast Black C;Direct Fast Black NS;EMPA 132;Enianerol CA;ErieFast Black G;Everdirect Black VSF;Fast Black VSF 600;Formal Fast Black B;Formal Fast Black GG;FormaldehydeFast Black G;Formalide Black GR;Hispamin Fast Dischargeable Black CA;Kayarus Black B;Neraldolo DA;Pharmaform;Plutoform Black CD;Pontamine Fast BlackPGR;Pyrazol Black NF;Solar Black 6NBI;
Direct Black 22 Dyeing Fastness(grade)

Direct Direct Black 22
Dyeing depth %	2
Insolubles %	0.15
Light Fastness	4-6
Washing Fatness	2
Rubbing fastness(dry)	4
Rubbing fastness(wet)	3

Direct Black 22 Properties and Applications:
green and black. Blue gray powder. Soluble in water for violet black. The strong sulfuric acid for violet black, dilute black light after brown precipitation; In nitric acid solution for the red light brown in, precipitation. The dye solution to join strong hydrochloric acid have brown light black precipitation; Add thick sodium hydroxide solution for dark blue light red.
Applications:
Mainly used for cotton, viscose, wool/stick,nylon/rayon blended fabric dyeing and printing, also used in leather and paper dyeing.

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