Package: 25kg/bag

Uses : Food Dyestuffs, Ink Dyestuffs, Leather Dyestuffs, Paint Dyestuffs, Pap...

Molecular Structure:

Product description: English name:Acid Black 2 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