1.Producing from 1988 when the company was a SOE 2.New Sulfur recovery system 3.independent and complete production line Product:Sodium sulfideFormula:Na2SNature:Melted solid or flake, brown red, soluble in water, slightly soluble in alcohol, insoluble in ether, the solution is strongly alkaline, easily oxidized in air, toxic.Grade:IndustrialUsage:Manufacture of sulfur dyes or dye intermediates ...