Name:C.I.Acid Black 168,C.I.5711:1
Molecular Structure: Single azo,Metal Complexes
C.I.Acid Black 168,C.I.5711:1,CAS 12238-87-8,461.38,C20H12N3NaO7S,Fast Grey BRL,Acid Black NM-5BRL,Neutral Black BL,Neutral Black M-BL,Neutral Complex Black BL
Molecular Formula:C20H12N3NaO7S
Molecular Weight: 461.38
CAS Registry Number:12238-87-8
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. Black powder, its water solution is blue. Used for wool, silk, tussah, polyamide, Polyvinyl alcohol, peacekeeping/cotton, wool/stick blended fabric dyeing and printing. But with the direct dyes with bath dyeing. Can also be used for leather dyeing
