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Specifications
| Chemical formula | Na2S2O5 |
| CAS No. | 7681-57-4 |
| Molecular wt. | 190. |
| As SO2content (Iodometry Method ) | 60% To 62% |
| Assay as (As Na2S2O5 ) | 97% Min. |
| Appearance | White Crystalline Powder. |
| Ph (5% solution AT 30 C ) | 4.0 to 5. |
| IRON (As Fe ) | 0.01% w/w Max. |
| Heavy Metals (As Pb ) | 0.05% w/w Max. |
| 10% Solution in Distilled Water | Clean & Colorless |
| Water Insoluble Matter | 0.04% w/w Max. |
| Arsenic | Nill |
| Packing Size | 50Kg. Bag with liner. |
Applications
