| Article No. | 06024 |
| Purity | 98% |
| Molecular Formula | Na2SO3 |
| H.S. Code | 2832.1090 |
| Grade | AR/ACS |
| CAS No. | 7757-83-7 |
| Molecular Weight | 126.04 |
| Shelf Life | 60 Months |
| Physical state at 20 °C | Solid | Colour | White crystalline | ||||
| Odour | Odorless | pH value | 9.0 - 10.5 at 126 g/l at 25 °C | ||||
| Melting point/ Freezing point [°C] | 500°C | Density [g/cm3] | 2.63 | ||||
| Solubility in water [% weight] | 126 g/l at 20 °C - completely soluble | ||||||
| Appearance | White crystalline powder | Assay (iodometric) | Min 98% |
| Insoluble matter in water | Max 0.005% | Acidity | Passes test |
| Alkalinity | Max 0.03 meq/g | Chloride (Cl) | Max 0.02% |
| Heavy metal (as Pb) | Max 0.001% | Iron (Fe) | Max 0.0005% |