sodium metabisulfite Trade names: sodium metabisulfite Product Intrduction: The industrial grade sodium metabisulfite Molecular formula:Na2S2O5 Appearance: white or yellowish crystal powder Quality standard: HG/T 2826-1997 Main purpose: 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. Packing: external polypropylene woven bag, polyethylene plastic bag lining. Net weight: 25kg /bag 50kg /bag 1000kg /bag Food-grade sodium metabisulfite Molecular formula:Na2S2O5 Molecular weight: 190.10 Quality standard: GB1893-86Main purposes: Bleaching agent(for sugar, pastry, dried slices of tender bamboo shoots,etc ), loosening agent(for bread, biscuit, etc ), corrosion protection antiseptic(fruit juice, can,etc ), antioxidant(for lily flower, sea food, fruit, vetegable,etc ) . Packing: external polypropylene woven bag, polyethylene plastic bag lining. Net weight: 25kg /bag 50kg /bag