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SODIUM METABISULPHITE Extra Pure
Confirming to BP, USP
| Article No. | Grade | Purity | CAS No. | Molecular Formula | Molecular Weight | H.S. Code | Shelf Life |
|---|---|---|---|---|---|---|---|
| SC1805 | Extra Pure | 96.50% | 7681-57-4 | Na2S2O5 | 190.1 | 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 | Sulphorous |
| pH value | 4.5 at 50 g/l at 20 °C |
| Melting point/ Freezing point [°C] | 300 °C |
| Density [g/cm3] | 1.48 |
| Solubility in water [% weight] | 650 g/l at 20 °C |
| Partition coefficient Log Pow octanol / water at 20°C | -3.7 |
Specifications
| Appearance | White crystalline powder |
| Assay (iodometric) | 96.5 - 100% |
| Assay (as SO2; iodometric) | 65 - 67.4% |
| Identity (acc. to pharmacopoeias) | Passes test |
| pH (5% solution in water) | 3.5 - 5.0 |
| Appearance of solution | Passes test |
| Insoluble matter in water | Max 0.025% |
| Chloride (Cl) | Max 0.02% |
| Thiosulphate (S2O3) | Max 0.05% |
| Heavy metal (as Pb) | Max 0.002% |
| Arsenic (As) | Max 0.0004% |
| Iron (Fe) | Max 0.002% |
Safety Information and Hazard Symbols
|
|
|---|---|
| Symbol | GHS05, GHS07 |
| Signal Word | Danger |
| UN No. | |
| IMCO Class No. | |
| Packing Group | |
| Hazardous Statement | H302-H318 |
| Precaution Statement | P280-P305 + P351 + P338 |
| Risk Statement | |
| Safety Statement | |
Revision Date : 07-Jun-2022
Certificate of Analysis (COA's)
To download COA please enter the batch number below