Package: In plastic woven bags / kraft paper bags / LDPE bags of 25 kgs net and PE bags lining, or in 1,000 / 1,100 kgs big bags. or in 1 kg Aluminium foil bags / 2.5 kgs bottles.

Uses : Mainly used in pharmaceutic materials, paper industry, photochem, bleaching, developer, leather chroming agent, rubber industry, dyes, printing dyeing, textile auxiliary, cotton wool, antichlor, chromate waste water treatment agent, anticorrosive, disinfe

Molecular Structure:

Product description: Synonyms: Sodium metabisulphite; Sodium metabisulfite; Sodium disulfite; Sodium disulphite; Sodium pyrosulfite; Sodium pyrosulphite Molecular formula: Na2S2O5 Molecular weight: 190.10 CAS №: 7681-57-4 EINECS №: 231-673-0 H.S.Code: 28321000 Properties: White or yellow crystalline powder or crystal with strong sulphur dioxide smell, specific gravity: 1.4, soluble in water, glycerine and little in ethanol , aqueous solution is acidic fluid.