Manufacturer for sodium sulphide NaS: 60% MIN Fe:1500ppm,150ppm,80ppm,50ppm,30ppm,15ppm,5ppm Products name: Sodium Sulphide, Sodium SulfideMolecular Formula: Na2SSpecification: 60%CAS NO. 1313-82-2H.S.CODE: 28151100UN NO.: 1849HIGH IRON ( RED FLAKES )Na2S: 60%minNa2CO3: 5.0%maxWater insoluble: 0.40%maxFe: 0.15%max 1500ppmLOW IRON ( YELLOW FLAKES)Na2S: 60%minWater insoluble: 0.20%maxNa2CO3: 2.0% ...