... ,150ppm,80ppm,50ppm,30ppm,15ppm,5ppm Products name: Sodium Sulphide, Sodium SulfideMolecular Formula: Na2SSpecification: 60%CAS NO. 1313 ... Solid-fused or granular, brown red color, soluble in water, presenting strong alkaline solution, easily oxidized when ... , flotation agent, depilatory for leather, digestion auxiliary in paper-making. also widely in pigment and rubber industry, etc. sodium sulphide