DIRECT BLACK 22 CAS #6473-13-8
DIRECT BLACK 22 CAS #6473-13-8 - 图片 2
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DIRECT BLACK 22 CAS #6473-13-8

1. Characteristics
Deep black: can present a rich black tone.
Direct dyeing: can dye the fiber directly without the help of mordant.
Dyeing fastness: has certain dyeing fastness such as washing resistance and friction resistance.
2. Application field
Textile printing and dyeing: widely used in dyeing natural fibers and synthetic fibers such as cotton, linen, silk, wool, etc., especially suitable for dyeing dark fabrics.
Leather dyeing: provides a black appearance for leather products.
3. Precautions for use

Category Tag

DIRECT BLACK 22 CAS #6473-13-8

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
DIRECT BLACK 22 Structure
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)
Safety Information
MSDS Information
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

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