Depilatory for hides and skins, manufacture of rubber, sulphur dyes, rayon (denitrating), paperplup, ore floatation, metal refining, engraving, cotton, printing, as chemical intermediates and laboratory reagent.

1.In dye industry, to produce sulfer dye stuff, sulfide green, blue or dye intermediates reductant mordant etc.
2.Used in non-ferrous metallurgical industry, ore flotation agent 3.Used in leather-making industry as depilatory cream for raw hides.
4.Used in paper making industry as pulp blending and cooking agent.
5.Used in producing sodium thiosulphate, sodium polysulphide and sodium hydrosulphide.
6.Also widely used in textiles, pigment, rubber and other industrial sectors.