CASR |
: | 7558-80-7 |
Molecular Formula |
: | NaH2PO4 |
Molecular Weight |
: | 119.98 |
| Specifications | |
|---|---|
| Description: | Colorless crystals or white, crystalline powder.Is odorless and is slightly deliquescent. Its solutions are acid to litmus and effervesce with sodium carbonate |
| Solubility: | Freely soluble in water; practically insoluble in alcohol. |
| Identification A (Sodium): | A dense precipitate should form. |
| Identification B (Phosphate 1): | A 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 (Anhydrous basis): | 98.0% - 103.0% |
| Insoluble Substances: | NMT 0.2% |
| Chlorides: | NMT 0.014% |
| Sulphate (SO4): | NMT 0.15% |
| Aluminium, Calcium and Related Element: | The sample solution should not become turbid when rendered slightly alkaline to litmus paper with 6N ammonium hydroxide. |
| Arsenic (As): | NMT 8ppm |
| pH: | 4.1 -4.5 |
| Water: | NMT 2.0% |
