sodium sulphide flakes

Characteristics: Anhydrous matter of Sodium Sulphide (Sodium Sulfide) is white crystal, can be dissolved easily, relative density 1.856 (14 Celsius degree), melting point 1180 Celsius degree. Specification: Characteristics: Anhydrous matter of Sodium Sulphide (Sodium Sulfide) is white crystal, can be dissolved easily, relative density 1.856 (14 Celsius degree), melting point 1180 Celsius degree. Specification: Sodium Sulphide red flake 1)Purity: 60% min 2)Fe: 1500ppm 3)Na2CO3: 5% max 4)Water Insoluble: 0.4% max . Sodium Sulphide yellow flake 1)Purity: 60% min 2)Fe: 150ppm, 50ppm and 30ppm. 0.003max 3)Na2CO3: 2% max 4)Water Insoluble: 0.2% maxUse: Sodium Sulphide (Sodium Sulfide) used as the material of sulfur dyes, dyeing auxiliaries in textile, used in tannage or the making of sodium polysulfide, the cooking agent of papermaking, used in denitration of rayon and reducing of nitrate, the mordant of cotton textile, or used in the making of medicine and sulfide.