ACID BLACK 172

C.I.Acid Black 172,C.I.15711:1,CAS 61847-77-6/57696-14-8,461.38,C20H12N3NaO7S,Acid Black S-RL,Acid Black LDN,Acid Black M-R,Acid Black S-DL,Neutral Black S-BL,Neutral Black 2S-RL,Neutral Black BR,Neutral Black D-SL,Neutral Black LD,Neutral Black M-SRL,Neutral Black RS-BLN,Neutral Complex Black S-RL,Neutral Complex Black LDN

Molecular Formula:C20H12N3NaO7S

Molecular Weight: 461.38

CAS Registry Number:61847-77-6/57696-14-8

Manufacturing Methods : 4-Amino-3-hydroxynaphthalene-1-sulfonic acid diazo, and Naphthalen-2-ol coupling, and then translate into 1:2 chromium complex.

Properties and Applications: black. Dark brown powder, soluble in water. Used for wool, polyamide fiber, silk and their blended fabric dyeing and printing directly, also can used for leather dyeing.

Standard Light Fastness Soaping Persperation Fastness Oxygen bleaching Fastness to seawater
Fading Stain Fading Stain Fading Stain
ISO 7 4-5 5 5

Used for wool, polyamide fiber, silk and their blended fabric dyeing and printing directly, also can used for leather dyeing.