Sodium metabisulfite 98.5% food grade 1.Packing:25kg/bag or 50kg/ ... Ability: 10,000 Ton per month; 3.ISO HACCP; Sodium metabisulfite 98.5% food grade Brief introduction: Molecular Formula:Na2S2O5 Molecule ... polypropylene overbag, paper-plastic composite bag, kraft bag, etc. Sodium metabisulfite 98.5% food grade