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Sulphur Black is as Sulphur Black 1 Sulphur Dye,flashing black flakes or particles,CAS1326-82-5,C6H4N2O5.Have high and  full strength. Mainly used for denim cotton and cotton fiber blended fabric dyeing, also used for dyeing cambric, viscose and  vinylon.
The product must be stored in shade,dry & well-ventilated warehouse.Avoid to be contacted with oxidizing chemicals and  combustible organic substances.Keep it away from direct sunlight,heat,sparks and open flames.Carefully handle the product  and avoid damaging the package.