Potassium dihydrogen phosphate - 30407
Code: 30407
Potassium dihydrogen phosphate
Puriss. p.a., Reagent ISO, Reagent European Pharmacopoeia
CAS Number: 7778-77-0
Linear Formula: KH2PO4
Molar Mass: 136.09 g/mol
EC Number: 231-913-4
| Property |
Value |
| Assay |
min. 99.0 % |
| Assay (calculated to the dried substance) |
99.5 - 100.5 % |
| Loss on drying (130°C) |
max. 0.2 % |
| PH (5 %, 25 °C) |
4.2 - 4.5 |
| Water insoluble matter |
max. 0.005 % |
| Arsenic (As) |
max. 0.5 ppm |
| Iron (Fe) |
max. 5 ppm |
| Sodium (Na) |
max. 0.005 % |
| Heavy metals (as Pb) |
max. 5 ppm |
| Chloride (Cl) |
max. 5 ppm |
| Sulfate (SO4) |
max. 30 ppm |
| Total N |
max. 0.001 % |
| KMnO4 reducing matter (as O) |
complying |
| Appearance of the solution |
complying |
| Property |
Value |
| Freezing point |
253 °C |
| Density |
2.34 g/cm3 |