DISODIUM HYDROGEN ORTHOPHOSPHATE HEPTAHYDRATE
DISODIUM HYDROGEN ORTHOPHOSPHATE HEPTAHYDRATE
| Article No. | 557708 |
| Grade | AR |
| Purity | 99% |
| CAS No. | 7782-85-6 |
| Molecular Formula | Na₂HPO₄ · 7H₂O |
| Molecular Weight | 268.07 |
| H.S. Code | 2835.2200 |
| Shelf Life | 60 Months |
Physical properties
| Physical state at 20 °C | Solid |
| Colour | White crystalline powder |
| Odour | Odorless |
| pH value | 8.7 – 9.3 |
| Solubility in water | Soluble in water |
Specifications
| Appearance | White Crystals or white Crystalline powder, hygroscopic |
| Assay | 98-102% |
| Solubility | Freely soluble in water practically insoluble in ethanol (96 per cent) |
| Identification | A- Solution is slightly alkaline B- It gives reaction of sodium C- It gives reaction of phosphate |
| Appearance of Solution | Clear Colourless Solution |
| pH5% at 20°C | 8.7-9.3 |
| Reducing Substances | Passes test |
| Chlorides | Max 0.001% |
| Sulphates | Max 0.005% |
| Loss on Drying | 43-50 % |
| Packings | 500 gm -kg |
