| Article No | S-08394 | ||
| CAS No | 7772-98-7 | ||
| HSN Code | 28323010 | ||
| Purity | Min. 97.0% | ||
| Grade | Extra pure | ||
| Molecular Formula | Na2S2O3 | ||
| Molecular Weight | 158.10 | ||
| Shelf Life | 5 years | ||
1 kg
| Description | White crystalline powder | ||
| Assay | Min. 97.0% | ||
| pH 5% | 6.0 – 8.5 | ||
| Sulphide (S) | Max. 0.002% | ||
| Melting point/Freezing point (˚C) | >100˚C | ||
| Density ( g/cm3) | 1.66 | ||
| Solubility in water (% weight) | 50g/100g cold water | ||
| Insoluble matter (10% in water) | Max. 0.005% | ||
| Chloride (Cl) | Max. 0.02% | ||
| Nitrogen compounds (N) | Max. 0.002% | ||
| Sulphate & sulphite (as SO4) | Max. 0.1% | ||
| Heavy metals (as Pb) | Max. 0.001% | ||