Product
Product
Product Name: Sodium metabisulfite
CAS: 7681-57-4
MW: 190.11
MF: 2Na.O5S2
Appearance: White crystalline powder
Purity: 98%
Specification
| Items | Standard |
| Sodium metabisulfite % | 98%min |
| Water insoluble % | 0.01max |
| Fe % | 0.002max |
| As % | 0.00006max |
| Heavy Metals(Pb) % | 0.0003max |
| PH value | 4.0-4.6 |
Application
1. Used as chromatographic analysis reagent, preservative and reducing agent for dyes 2. Used as bleaching agent, mordant, reducing agent, rubber coagulant 3. Printing and dyeing industry used as dechlorination agent after cotton bleaching, cotton cooking additives.
Product packaging
