Sodium metabisulfite ≥97% ACS


Synonyms: Pyrosulfurous acid disodium saltDisodium disulfiteSodium disulphiteDisodium disulphiteSodium pyrosulphiteSodium disulfitedi-Sodium disulphiteSodium pyrosulfite

02191438.5 02191438.1
IC02191438.5EA 85.33 USD
IC02191438.5 IC02191438.1
Sodium metabisulfite ≥97% ACS
Sodium metabisulphite

Sodium metabisulfite is an antioxidant reducing agent, with antimicrobial and antifungal properties. Gastric tissue studies report that sodium metabisulfite can augment lipid peroxidation and apoptosis in a dose-dependent manner.

Sodium metabisulfite is used as an active ingredient in campden tablets, as a cleaning agent for potable water reverse osmosis membranes, as a preservative and an antioxidant in food. It also acts as a corrosion inhibitor in oil and gas industry, as a bleaching agent in the production of coconut cream, as the source of sulfur dioxide and in the destruction of cyanide in commercial gold cyanidation processes. It is utilized in the precipitation of gold from auric acid as well as in the waste water treatment to remove hexavaent chromium as trivalent chromium by precipitation after reduction. Further, it is used in photography. In addition, it plays as an oxygen scavenger to eliminate the dissolved oxygen in wastewater and in pipes.

Formula: Na₂O₅S₂
MW: 190.11 g/mol
Melting Pt: >300 °C (lit.)
Density: 1000…1200 kg/m³ (bulk density)
Storage Temperature: Ambient
MDL Number: MFCD00167602
CAS Number: 7681-57-4
EINECS: 231-673-0

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Specification Test Results

Physical Appearance White Crystalline Powder
Heavy Metals Pb ≤0.001%; Iron (Fe) ≤0.002%
Insoluble Matter ≤0.005%

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