China Sodium Metabisulphite 7681-57-4, Find details about China Sodium Metabisulphite 7681-57-4, 7681-57-4 from Sodium Metabisulphite 7681-57-4
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 |