Sodium sulfide
Physicochemical property:
Content: Industrial first grade =60.0%.
Density 1.86
Melting point 950°C
Solubility 186 g/L (20°C)
Colorless or beige crystalline particles, industrial products as red-brown or brick red block. Soluble in water, slightly soluble in alcohol, insoluble in ether, the solution is strongly alkaline, easily oxidized in air, toxic. Main characteristic: iron (Fe2O3) Content is 30 mg / kg or less
Main use: For the manufacture of dyes, sulfide, and for ore flotation agent, depilatory hides, paper, cooking etc..