Sodium metabisulfite

sodium metabisulfite is widely used in leather tanning, cloth knitting, organic matters blanching, mordant, food preservation, brewing, sterilization and antisepsis of beverage, synthetic organic reducers for photography, rubber coagulators and spices 1) Item: 96.5% Sodium Metabisulfite food grade and industry grade 2) Molecular formula: Na2S2O5? H.S.Code:28321000 3) Physical appearance: white or slightly yellowish crystalline powder 4) Packing: 25kg plastic woven bags or 1200kg jumbo bags Please don't hesitate to contact me if you are interested in it.hope we have good start in this field,waiting for your early reply.thanks a lot.