Property: White or light-yellow crystalline powder, smell of SO2. No other smell when dried. Specific gravity is 1.4. It’s soluble in glycerine, It’s soluble slightly in alcohol.
Insoluble matter in water
Heavy metal(as Pb)
Usage: Mainly used for manufacturing sulphuric acid and bactericidal agent, Carrying out vegetable dehydrate, fruit preservation and bleaching.
Packing: In 25kg plastic woven bags lined with PE bag.