CASR |
: | 7558-79-4 |
Molecular Formula |
: | Na2HPO4 |
Molecular Weight |
: | 141.96 |
| Specifications | |
|---|---|
| Description: | White powder that readily absorbs moisture. |
| Solubility: | Freely soluble in water; insoluble in alcohol |
| Identification A (Sodium): | A dense precipitate should form. |
| Identification B (Phosphate 1): | With silver nitrate solution neutral solution should yield yellow precipitate that soluble in 2N nitric acid and 6 N ammonium hydroxide. |
| Identification B (Phosphate 2): | With ammonium molybdate solution, acidified solutions should yield a yellow precipitate that should soluble in 6N ammonium hydroxide. |
| Assay (on dry basis): | 98.0% - 100.5% (Na2HPO4) |
| Insoluble Substances: | NMT 0.4% |
| Chlorides: | NMT 0.06% |
| Sulfate (SO4): | NMT 0.2% |
| Arsenic (As): | NMT 16ppm |
| Loss on drying,130°C: | NMT 5.0% |
