Properties: Bright---black flake or crystals, insoluble in water and clcohol, it is the green---black color when soluble it in solution of sodium sulfide.
Uses: Mainly used dyeing oncotton, also used dyeing on cambric, viscose and vinylon.
Packing: In iron drums of 25kg or 50kg net each lined with plastic bag. |
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| Specifications︰ | Appearance: bright---black or crystals.
Hue: Approximate to that of he standard sample.
Strength: 100% as the standard product.
Moisture, %: =0.7
Insoluble matters when in the solution of sodium sulfide,%:=0.5
Free sulfur content,%:=0.5 |
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