ACID BLACK 2/NIGROSINE MS CONC.
Acid black 2
C.I. Acid Black 2; Nigrosine; C.I. 50420; Nigrosin water soluble; nigrosin cell culture tested; Nigrosin Acid black; Acid Black 5 (50420); Nigrosin; Nigrosine Water Soluble
|Appearance:||black with flash granular|
|Water Solubility:||soluble in water, aqueous solution is violet, purplish brown precipitate in sodium hydroxide solution|
Usage of Acid Black 2:
1. Mainly used for wool, silk dyeing, also used in leather dyeing (usually by chrome mordant), as well as paper, wood, soap, and electrochemical coloring of aluminum and manufacture of the ink.
2. Aslo used for leather, silk and wool dyeing, also can be made into lake used in color paper and printing