Sodium Metabisulfite Tech Grade
DescriptionSodium metabisulfite (anhydrous sodium bisulfite, sodium pyrosulfite) is a white crystalline inorganic compound with the chemical formula Na2S2O5.
Product PackageWoven Bag, PE Bag, Kraft Paper Bag, in Nett 25Kgs, 50LBs, 1000Kgs.
1, Pharmaceutical industry：used for the production of chloroform, phenyl sulfone and benzaldehyde.
2, Rubber industry: used for coagulation agent.
3, Printing and dyeing industry : used for cotton bleaching after the dechlorination agent, cotton cooker.
4, Leather industry : used for leather processing, can used to make leather soft, plump, tough, with waterproof, bending, wear properties.
5, Chemical industry：used for the production of hydroxyaldehyde, hydroxylamine hydrochloride and so on.
6, Photographic industry： used in the developing agent and so on.
7, Food industry：used for bleaching agents, preservatives, vegetable pine agents, colour fixative and preservatives.
8, Also can used in pulluted water treatment agent and Bamboo and wood fiber bleaching agent and so on.
Product Index
| Items | Index |
| Product Name | Sodium Metabisulfite Tech Grade |
| MF | Na2S2O5 |
| Appearance | White crystal powder |
| Molecular Weight | 190.12 |
| CAS NO . | 7681-57-4 |
| Purity ( Na2S2O5 Content) | ≥96.0% |
| Valuation (SO2) | ≥65.0% |
| Heavy Metal ( Pb Content ) | — |
| As Content | — |
| Se Content | — |
| Fe Content | ≤0.003% |
| Water Insoluble | ≤0.05% |
| PH | ≤4.0-4.6 |
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