CASR |
: | 7558-80-7 |
Molecular Formula |
: | NaH2PO4 |
Molecular Weight |
: | 119.98 |
| Specifications | |
|---|---|
| Appearance: | White, slightly deliquescent crystals or granules |
| Solubility: | Very soluble in water, very slightly soluble in ethanol (96%) |
| Identification A (By Chemical test): | Solution should be slightly acid |
| Identification B1 (Phosphate): | A yellow precipitate should form of which color does not changes by boiling and which dissolves on addition of ammonia. |
| Identification B2 (Phosphate): | A yellow color should develop |
| Identification C (for Sodium): | A dense white precipitate should form |
| Identification D (By Loss on drying): | NMT 1.0% |
| Acidity: | pH of the solution should be 4.2-4.5 |
| Clarity and colour of solution: | Clear and colorless solution |
| Arsenic (As): | NMT 2 ppm |
| Iron (Fe): | NMT 10 ppm |
| Chloride (Cl): | NMT 200 ppm |
| Sulfate: | NMT 300 ppm |
| Reducing substances: | The solution should retain slight red color |
| Loss on drying at 130°C: | NMT 1.0% |
| Assay (Dried substance): | 98.0% - 100.5% |
