Product: Sodium Metabisulfite
Alias: Sodium Pyrosulfite
CAS No: 7681-57-4
Molecular formula: Na2S2O5
Molecular weight: 190.10
Appearance: White or yellowish crystal powder
Specification:
| Item | Superior Quality | First Class |
| Main Content(Na2S2O5 ),% ≥ | 96.5% | 95% |
| Iron(Fe), % ≤ | 0.005 | 0.01 |
| Water-Insoluble, % ≤ | 0.05 | 0.05 |
| Arsenic(As), % ≤ | 0.0001 | --- |
Usage:
Printing and dyeing mordant; antichlor in after fabric bleaching; chemical and medicine reducer and sulfonating agent; bleaching agent of bamboo, wood and paper fiber; nonferrous metal dressing agent; waste water finishing agent; rubber coagulator; alkyl spice aldehyde in spice industry; depilating agent, softening agent and anti-wear agent in leather industry; reducer of developer and protective agent of fixative in sensitization industry.
Packing:
25, 50, 1000kg/bag or customized in polypropylene woven bag lined with polyethylene plastic bag or plastic and paper compound bag, kraft bag, etc.
