SODIUM SULPHITE ANHYDROUS
SODIUM SULPHITE ANHYDROUS
| Article No. | 550908 |
| Grade | AR/ACS |
| Purity | 98% |
| CAS No. | 7757-83-7 |
| Molecular Formula | Na2SO3 |
| Molecular Weight | 126.04 |
| H.S. Code | 2832.1090 |
| Shelf Life | 60 Months |
Physical properties
| 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 |
Specifications
| Appearance | White or almost white powder |
| Assay | 95-100.5% |
| Solubility | Freely soluble in water |
| Identification | Passes test |
| pH | 9-11 |
| Thiosulphates | Max 0.1% |
| Chloride | Max 400 ppm |
| Packings | 500 gm |
