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Sodium Metabisulphite 98% Min:
1.CAS NO.:7681-57-4
2.EINECS No.:231-673-0
3.HS CODE: 28321000
4.Molecular Formula: Na2S2O5
5.Molecular Weight: 190.09
6.Appearance: White Crystalline Powder
7.Detail Specifications:
| Item | Standards | Test Result |
| Na2S2O5(%) | 98.0% Min | 98.20 |
| SO2(%) | 65.0 Max | 65.2 |
| Iron(%) | 0.0015 Max | 0.0012 |
| As(%) | 0.0002 Max | 0.0002 |
| Se(%) | 0.0005 Max | 0.0005 |
| Pb(%) | 0.0005 Max | 0.0004 |
| Matter Insoluble In Water(%) | 0.05 Max | 0.05 |
| Ph Value | 4.0-4.8 | 4.5 |
| Conclusion | Qualified | |
8.Properties:
White or yellowish crystalline powder with strong SO2 odor; specific wt.: 1.4. soluble in water, its aqueous solution is acidic.
9.Usage:
10.Package,Storage,Transportation:
Packed in 25kg plastic woven bag, 25kg Kraft paper bag, 25kg PE bag, 500kg/1000kg/1100kg/1200kg jumbo bag or as per the buyer's requirement.
| COA Download | MSDS Download |