We can supply 96% min Sodium Metabisulfite food grade and industry grade.
(1) Chemical formula: Na2S2O5;

(2) Place of origin: China;

(3) Physical appearance: White or slightly yellowish crystalline powder;

(4) Packing: 25kg, 50kg, 1000kg per plastic woven bag lined with one layer polythene bag;

(5) Application: 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.
Please do not hesitate to contact me if you are interested in our products. Your any inquiry will meet our prompt reply. We are glad to give you our best quality and price. Welcome your quick reply.