Food grade Sodium metabisulfite CAS 7681-57-4
ItemChinese standard
GB1893-2008Company standardMain content(Na2S2O5)≥96.5≥97.5Fe(As content Fe)≤0.003≤0.0015ClarityPass testClearHeavy metal content (Pb)≤0.0005≤0.0002Arsenic content (As)≤0.0001≤0.0001
Molecular Formula:Na2S2O5
Molecular Weight:190.10
Appearance: white crystal powder.
Packing: polypropylene weaving bag, paper plastic complex bag and kraft lined with polyethylene plastic bag.
Net weight: 25, 50, 1000 kilograms per bag or according to demands from customers