Synoyms:C.I. Acid Black 2; Nigrosine; C.I. 50420; Nigrosin water soluble; nigrosin cell culture tested; Nigrosin Acid black; Acid Black 5 (50420); Nigrosin
CAS number:8005-03-6
Purity:100+5%
Best quality and Competitive price

Chemical properties

Appearance: black granule with glittery color

Color light: blue light

Intension: 100%±5 of standard

Moisture: ≤6%

Ash:  ≤17%

Powdery products(Acid powdery black): Fineness: pass 80mesh Residue on sieve≤0.5%

used in the dyeing of leather, wool silk, paper, soap and ink

Packing:25kg woven bag or as per youre requirements