6473-13-8 Usage
Description
DIRECT BLACK 22 is a polyimidazolium salt and an organic dye used in the textile industry. It is known for its ability to impart a deep black color to fabrics and is widely used in dyeing processes.
Uses
Used in Textile Industry:
DIRECT BLACK 22 is used as a dyeing agent for coloring fabrics. It is particularly favored for its ability to produce a deep black color that is resistant to fading and washing.
Environmental Considerations:
DIRECT BLACK 22 is considered a water pollutant due to its potential to contaminate water sources. As a result, it is important to remove it from wastewater through degradation processes to minimize its environmental impact.
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.
Standard
Acid Resistance
Fading
Stain
ISO
5
AATCC
5
Check Digit Verification of cas no
The CAS Registry Mumber 6473-13-8 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 6,4,7 and 3 respectively; the second part has 2 digits, 1 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 6473-13:
(6*6)+(5*4)+(4*7)+(3*3)+(2*1)+(1*3)=98
98 % 10 = 8
So 6473-13-8 is a valid CAS Registry Number.
InChI:InChI=1/C44H35N13O11S3.3Na/c45-24-3-12-35(33(47)17-24)54-51-28-5-1-22-15-39(70(63,64)65)41(43(58)31(22)19-28)56-50-27-9-7-26(8-10-27)49-37-14-11-30(21-38(37)69(60,61)62)53-57-42-40(71(66,67)68)16-23-2-6-29(20-32(23)44(42)59)52-55-36-13-4-25(46)18-34(36)48;;;/h1-21,49,58-59H,45-48H2,(H,60,61,62)(H,63,64,65)(H,66,67,68);;;/q;3*+1/p-3/b54-51+,55-52+,56-50+,57-53+;;;
