1. Name: Sulphur Black
2. Molecular formula: C6H4N2O5
3. Molecular weight: 184.10636
4. Physical and Chemical property: solubility(25℃): ≥160g/l intensity:100%
5. Specification: 200%501; 200%521; 200%522
6. Appearance: black powder and subtle grain
Usage: dye the cotton, jute and fiber
Characteristics: most consumed vulcanizing dyestuff, slight soluble