Molecular Formula: Na2SMolecular Weight: 78 Characteristics:Flakes, brown-red colour soluble in water, lightly soluble in alcohol,insoluble in ether; easily oxidized when exposed to air.Specification: Used:Depilatory for hides and skins, manufacture of rubber, sulphur dyes,rayon (denitrating), paper pulp, ore floatation, metal refining,engraving, cotton printing, as chemical intermediates and laboratoryreagent. Packing: 25kg plastic woven bags lined with one layer polythene bags, inside with plastic coating bags .