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SODIUM SULPHITE ANHYDROUS Extra Pure
Confirming to BP
| Article No. | Grade | Purity | CAS No. | Molecular Formula | Molecular Weight | H.S. Code | Shelf Life |
|---|---|---|---|---|---|---|---|
| SC1831 | Extra Pure | 95% | 7757-83-7 | Na2SO3 | 126.04 | 2832.1090 | 60 Months |
Packings
| 500 g,1000 g,5000 g,25 Kg,50 Kg |
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 |
| Solubility in water [% weight] | 126 g/l at 20 °C - completely soluble |
Specifications
| Appearance | White crystalline powder |
| Assay (iodometric) | 95 - 100.5% |
| SO2 | Min 48% |
| Identity | Passes test |
| Appearance of solution | Passes test |
| Thiosulphate (S2O3) | Max 0.04% |
| Arsenic (As) | Max 0.0002% |
| Heavy metal (as Pb) | Max 0.001% |
| Iron (Fe) | Max 0.001% |
| Copper (Cu) | Max 0.0005% |
| Selenium (Se) | Max 0.001% |
| Zinc (Zn) | Max 0.0025% |
Safety Information and Hazard Symbols
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Revision Date : 26-Dec-2013
Certificate of Analysis (COA's)
To download COA please enter the batch number below