Description
CAS No. 7772-98-7
Packing : 500 G
HSN Code : 28323010
IMDG Identification : Not Regulated for Transport (Non-Haz)
Molecular Formula : Na2S2O3
Molecular Weight : 158.11
Storage : Room Temperature
Shelf Life : 60 Months
Specifications
| Appearance (Colour) | White |
| Appearance (Form) | Crystalline compound |
| Solubility (Turbidity) 10% aq. solution | Clear |
| Solubility (Colour) 10% aq. solution | Colourless |
| Assay | min. 99.5% |
| pH (5% aq. solution) | 6.0-8.5 |
| Loss on drying | max. 1% |
| Chloride (CI) | max. 0.01% |
| Iron (Fe) | max. 0.0005% |
| Heavy Metals (Pb) | max. 0.0005% |
| Sulphate & sulphite (SO4) | max. 0.03% |
| Sulphide (S) | max. 0.0001% |
| Copper (Cu) | max. 0.0005% |
| Potassium (K) | max. 0.001% |
| Nitrogen Compounds (N) | max. 0.002% |
