Customization: | Available |
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CAS No.: | 7681-57-4 |
Formula: | Na2s2o5 |
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CAS#.: 7681-57-4
Molecular Weight: 190.10
Application:Sodium metabisulphite is mainly used in mineral-dressing of nonferrous metals, mordant of printing and dyeing, dechlorinate of textile after bleaching, sulphonated agent and reducer of chemical industry and pharmacy; treatment agent of waste water, rubber solidifying agent. In food industrial area, it could be used in bleach agent, loose agent, antiseptic and germicide and Inhibitor and freshen agent.
Items | Units | Standard |
Purity(CuSO4·5H2O) | % | 97 min |
Fe | % | 30 min |
Pb | ppm | 5 max |
As | ppm | 1 max |
Water Insoluble | ppm | 0.05 max |
Appearance | - | White or light yellow crystalline powder |