
| Ammonium di-hydrogen ortho-phosphate AR/ACS 500GM | |||
| 70120SG500 | 957622830LY | ||
| AR/ACS | 9576228 | ||
| 7722-76-1 | 117244 | ||
| NH4H2PO4 | December 2025 | ||
| 115.03 | November 2030 | ||
| Sr.No. | Test | Result | Specification | Method Reference |
|---|---|---|---|---|
| 1 | Appearance | Colorless solid | Colorless solid | |
| 2 | Aqueous solubility | Complies | 1 g in 2.5mL at 25°C | |
| 3 | Assay | 98.2% | Min. 98.0% | |
| 4 | pH(5% aq soln), at 25°C | 4.06 | 3.8 - 4.4 | |
| 5 | Insoluble matter | 0.003% | 0.005% Max. | |
| 6 | Chloride(Cl) | Less than 5 ppm | 5ppm Max. | |
| 7 | Nitrate(NO3) | Less than 0.001% | 0.001% Max. | |
| 8 | Sulphate(SO4) | Less than 0.01% | 0.01% Max. | |
| 9 | Heavy metals (as Pb) | Less than 5 ppm | 5ppm Max. | |
| 10 | Iron(Fe) | Less than 0.001% | 0.001% max. | |
| 11 | Calcium (Ca) | Less than 0.001% | 0.001% Max. | |
| 12 | Magnesium (Mg) | Less than 0.0005% | 0.0005% Max. | |
| 13 | Potassium (K) | Less than 0.005% | 0.005% Max. | |
| 14 | Sodium (Na) | Less than 0.005% | 0.005% Max. |
| Tested By (Chemist - Quality Control) | Approved By (Head - Quality Control) |