Package: external polypropylene woven bag, polyethylene plastic bag lining.

Uses : Dyeing mordant, dechlorinating agent for washed fabric, medical deoxidizer and sulfonating agent, bone black for bamboo, wood and paper fiber, non-ferrous mineral separation agent, waste water disposing agent, rubber coagulator.

Molecular Structure:

Product description: Test Item Index Superior grade First grade Content(Na2S2O5) 96.5 95 Fe％ 0.005 0.01 Insoluble substance in water ％ 0.05 0.05 As％ 0.0001 ----