SODIUM THIOSULPHATE PENTAHYDRATE, 99.5% AR
| Product Code | B-02528 | BRAND | Bio-Chem |
|---|---|---|---|
| Grade | AR | CAS No | 10102-17-7 |
| Molecular Formula | Na2S2O3.5H2O | Molecular Weight | 248.17 |
| H.S.Code | 2832.30100 | Shelf Life | 60 Months |
| Purity | 99.5 % |
Physical Properties
| Physical state at 20 °C | Solid | Colour | Colorless crystals |
|---|---|---|---|
| Odour | Odorless | Density [g/cm3] | 1.75 |
| Solubility in water [% weight] | 79g/100 ml water @ 40C | Melting point/ Freezing point [°C] | 48 °C |
| pH Value | 6 - 8.5 | Boiling point [°C] | > 100°C |
Packaging
Specification
| Appearance | Large, colourless crystals or coarse crystalline powder |
| Assay (iodometric) | 99.5 – 101.0% |
| Insoluble matter (10% in water) | Max. 0.005% |
| pH (5% solution in water; 25°C) | 6.0 – 8.4 |
| Nitrogen compounds (as N) | Max. 0.002% |
| Chloride (Cl) | Max. 0.02% |
| Heavy metal (as Pb) | Max. 0.001% |
| Sulphate and Sulphite (as SO4) | Max. 0.1% |
| Sulphide (S) | Passes test |
Safety Information and Hazard Symbols
Symbol:GHS02, GHS07 ,GHS09
Signal Word: Warning