CASR |
: | 7558-79-4 |
Molecular Formula |
: | Na2HPO4 |
Molecular Weight |
: | 141.96 |
| Specifications | |
|---|---|
| Appearance: | A white or almost white powder, hygroscopic |
| Solubility: | Soluble in water, practically insoluble in ethanol (96%). |
| Identification A (By Chemical test): | Solution should slightly alkaline. |
| Identification B (By Loss on drying): | Not more than 1.0% |
| Identification C (By Chemical test): | A yellow colour should develop |
| Identification D (By Chemical test): | A dense white precipitate should form. |
| Appearance of solution: | Solution should be clear and colourless. |
| Reducing substances: | The colour of the permanganate should not be completely discharge |
| Monosodium Phosphate: | 2.5% max, |
| Chlorides: | 200ppm max |
| Sulphate (SO4): | 500ppm max |
| Iron(Fe): | 20ppm max |
| Loss on drying (105 °C, 4 hr): | Not more than 1.0% |
| Assay (Dried substance): | 98.0% - 101.0% |
| Arsenic (As): | 2ppm max |
