It is pink, red brown, and wheat and have corrosiveness.

Function:

Dye industry: Produce slfur dye,the raw material of sulfur black and fulfur blue.

Printing industry: Dyeing agent if dissoluting sulfur dye.

Leather industry: Make sodium polysrlfide.

Papermaking: Cooking reagent.

Textile: Reduction of artificial fiber denitrating and nitration as well as dye mordant of woven cotton.

Pharmaceutical industry: Produce phenacetin and other febrifuge.

And it is also can use for producing sodium hyposulfite,sodium polysulfide sodium bisulfide and so on.