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DIRECT BLACK 22

Basic information Safety Supplier Related

DIRECT BLACK 22 Basic information

Product Name:
DIRECT BLACK 22
Synonyms:
  • C.1.DirectBlack22(35435)
  • C.I.Directblack22
  • ChlorazolBlackGF
  • CuproqixBlackNF
  • DiazolFastBlackJ
  • DirectfastblackGF
  • DirectlightblackGF
  • PONTAMINE FAST BLACK PGR
CAS:
6473-13-8
MF:
C44H32N13Na3O11S3
MW:
1083.97
EINECS:
229-326-3
Product Categories:
  • Organics
  • Dyes and Pigments
Mol File:
6473-13-8.mol
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DIRECT BLACK 22 Chemical Properties

form 
Powder
color 
Black
CAS DataBase Reference
6473-13-8
EPA Substance Registry System
C.I. Direct Black 22 (6473-13-8)
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DIRECT BLACK 22 Usage And Synthesis

Chemical Properties

black powder

Uses

Direct Black 22 is a polyimidazolium salt and an organic dye used in the textile industry. Direct Black 22 is considered a water pollutant, and is removed from wastewater by degradation.

Preparation

5-Amino-2-(4-aminophenylamino)benzenesulfonic acid double nitriding, in alkaline conditions and 6-Amino-4-hydroxynaphthalene-2-sulfonic acid? (2 Moore) coupled, then double nitriding, and Benzene-1,3-diamine (2 Moore) coupled.

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. Mainly used for cotton, viscose, wool/stick,nylon/rayon blended fabric dyeing and printing, also used in leather and paper dyeing.

Standard Acid Resistance Alkali Resistance Light Fastness Soaping Water
Fading Stain Fading Stain
ISO 5 4 4 3 3
AATCC 5 4-5 5-6 3 3

DIRECT BLACK 22 Preparation Products And Raw materials

Raw materials

DIRECT BLACK 22Supplier

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