Sodium Metabisulfite

Synonym: Sodium pyrosulfite Molecule Formula: Na2S2O5 Molecule Weight: 190.12 CAS No.: 7681-57-4 Property: White or light-yellow crystalline powder, Specific gravity is 1.4. It’s soluble in glycerine, It’s soluble slightly in alcohol. Specification: Sodium Metabisulfite ( SO2)65% MinIron(Fe)0.003% MaxWater Insoluble Matter 0.05% MaxPH4.0-4.6Heavy metal(as Pb)0.002% MaxArsenic(As)0.0002% Max Packing: Net each in 25kg plastic woven bag, lined with PE bag. Usage: Mainly used for manufacturing sulphuric acid and bactericidal agent, Carrying out vegetable dehydrate, fruit preservation and bleaching.