NIGOSINE CRYSTAL

Physical properties:
Concentration: 100%
Moisture: ≤6.0%
Ash: ≤17.0

Properties:
Black and shining particle, soluble in water easily soluble in alcohol and blue in alcohol. Blue in dense sulphuric acid, purple precipitate after dilution. Blue purple in water and dark purple precipitate with NaOH.

Main uses:
Sheep’s Wool Dyeing Dyeing in dense acid, and controlling PH value to 3.5 (using mirabilite to make dyeing regular).

Silk Dyeing
Dyeing in refinery fluid, it’ll become grey black with sulphuric acid or acetic acid.

Leather Dyeing Color

Dyestuff Tintment

Package PACKING:25KG/WOVEN BAG, 900KG/PALLET, 20"FT CONTIANER: 18000KGS


For more details , please contact us at tdpctw@gmail.com