Assay (iodometric) 99-100.5 %
Identity Passes test
Appearance of solution Dissolve 10.0 g in 50 ml of
distilled water R, add 1 ml of
0.1 M sodium hydroxideand
dilute to 100 ml with the same
solvent Clear & colourless
pH (5% sol in water) 6.0-8.4
Chloride (Cl) Max 0.05 %
Sulphate and sulphite (as SO4) Max 0.2 %
Sulphide (S) Passes test
Heavy metal (as Pb) Max 0.001 %
Calcium (Ca) Passes test
Water (H2O) 32.0-37.0 %
Appearance Large, colourless crystals or coarse crystalline powder
| CAS No. | 10102-17-7 |
|---|---|
| Molecular Formula | Na2S2O3.5H2O |
| Molecular Weight | 248.17 |
| HS Code | 2832.3000 |
| Packing | 1 KG |
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