SODIUM THIOSULPHATE PENTAHYDRATE AR/ACS
Article No. | Grade | Purity | CAS No. | Molecular Formula | Molecular Weight | H.S. Code | Shelf Life |
---|---|---|---|---|---|---|---|
SC1838 | AR/ACS | 99.50% | 10102-17-7 | Na2S2O3.5H2O | 248.17 | 2832.3010 | 60 Months |
Packings
500 g,5000 g,25 Kg,50 Kg |
Physical Properties
Physical state at 20 °C | Solid |
Colour | Colorless crystals |
Odour | Odorless |
pH value | 6 - 8.5 |
Melting point/ Freezing point [°C] | 48°C |
Boiling point [°C] | > 100°C |
Density [g/cm3] | 1.75 |
Solubility in water [% weight] | 79g/100 ml water @ 40C |
Specifications
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
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