SODIUM METABISULPHITE 97% AR
| Product Code | B-02445 | BRAND | Bio-Chem |
|---|---|---|---|
| Grade | AR | CAS No | 7681-55-2 |
| Molecular Formula | Na2S2O5 | Molecular Weight | 190.10 |
| H.S.Code | 2832.10900 | Shelf Life | 60 Months |
| Purity | 97 % |
Physical Properties
| Physical state at 20 °C | Solid | Colour | White crystalline |
|---|---|---|---|
| Odour | Sulphorous | Solubility in water [% weight] | 650 g/l at 20 °C |
| Melting point/ Freezing point [°C] | 300 °C | pH value | 4.5 at 50 g/l at 20 °C |
| Density [g/cm3] | 1.48 | Partition coefficient Log Pow octanol / water at 20°C | -3.7 |
Packaging
Specification
| Appearance | White crystalline powder |
| Assay | Min. 97.0% |
| Insoluble matter in water | Max. 0.005% |
| Chloride (Cl) | Max. 0.005% |
| Arsenic (As) | Max. 0.0001% |
| Phosphate (PO4) | Max. 0.002% |
| Thiosulphate (S2O3) | Max. 0.05% |
| Heavy metal (as Pb) | Max. 0.001% |
| Iron (Fe) | Max. 0.002% |
Safety Information and Hazard Symbols
Symbol: GHS02 , GHS05, GHS07 ,GHS09
Signal Word: Danger
Hazardous Statement: H302-H318
Precaution Statement: P280-P305 + P351 + P338