Properties: White solid, corrosive, hygroscopic easily soluble in water. Aqueous solution appears alkali. Packaging: 25kg grey webbing bag lined with plastic film. Use: Mainly used in paint, special high-grade engineering plastics, polystyrene (aryl) sulfide, polysulfide rubber production and other high precision industries.. Index Item Index Soldium Sulfide 44.0 Sodium Sulfite 0.4 Sodium Thiosulfate 0.3 Iron(Fe)PPM 5 Sodium Carbonate 0.15 Water Insoluble 0.012 Appearance White Flake Know more in www.world-sodiumsulfide.com