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Sodium Metabisulfite

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CAS No.: 7681-57-4
Molecular Formula: Na2S2O5
Synonyms: Sodium pyrosulfite, sodium metabisulphite, sodium pyrosulphite, sodium disulfite

Sodium metabisulfite has a strong reductibility. It is mainly used as a kind of bleacher for textile fiber, and also preservative and antioxidant in food industry.

1. Sodium metabisulfite should be stored at cool and dry places.

2. Sunlight, strong acid, oxidant or hazard substances are not allowed to contact the product.

3. The sodium pyrosulphite will be oxidized to sodium sulfate when exposed to wet air.

Key Specifications and Special Features
Appearance White crystalline powder
Quality Standard GB1983-1998
Technical Index
Main Content (Na2S2O5) ≥ 98%
Iron (as Fe) ≤ 0.001 %
Heavy Metals (as Pb) ≤ 0.001 %
Arsenic (as As) ≤ 0.0002 %
Packing 25kg PP bag with PE film, or 25kg PE bag
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