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Acid Blue 158(CAS 6370-08-7)

Acid Blue 158

Name:C.I.Acid Blue 158,C.I.14880

Molecular Structure: Single azo,Metal Complexes

 

C.I.Acid Blue 158,C.I.14880,CAS 6370-08-7,495.45,C20H13N2NaO8S2,Acid Blue 2G,Acid Blue SB,Fast Blue GGN,Neolan Blue 2G,Neolan Blue PA

Molecular Formula:C20H13N2NaO8S2

Molecular Weight: 495.45

CAS Registry Number:6370-08-7

Manufacturing Methods :  4-Amino-3-hydroxynaphthalene-1-sulfonic acid diazo, and 8hydroxynaphthalene-1-sulfonic acid coupling, and then with excessive sulfuric acid aqueous acid chromium solution common heating, in 115 : keep 7 hours, make dye create chromium complex.

Properties and Applications: green light blue. Dark blue powder. Soluble in water solution for blue. Soluble in alcohol. The strong sulfuric acid for blackish green color, diluted into blue, in the thick of sodium hydroxide solution for purple. Copper ions in dyeing is dark.  Discharge and exhaust dyeing good. For wool dyeing, can also be used for silk, nylon and wool / nylon blended fabric dyeing, but also with cationic dyes in one bath dyeing wool / acrylic blends. Also for wool fabric direct printing and discharge printing. Particularly suitable for woolen fabrics and carpets dyeing, can also be used for leather coloring.

Standard

Light Fastness

Soaping

Persperation Fastness

Oxygen bleaching

Fastness to seawater

Fading

Stain

Fading

Stain

Fading

Stain

ISO

5-6

3

4

4

1-2

 

3-4

 

AATCC

5

2

2

3

1

 

4-5

 

 

 

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