Potassium phosphate monobasic - 60221
Code: 60221
Potassium phosphate monobasic
for HPLC, ≥99.5%
Monopotassium phosphate; Potassium dihydrogen phosphate; prim.-Potassium phosphate
≥99.5%, For HPLC
CAS Number: 7778-77-0
Linear Formula: KH2PO4
Molar Mass: 136.09 g/mol
EC Number: 231-913-4
MDL Number: MFCD00011401
| Property |
Value |
| Assay |
99.5 - 101.0 % |
| PH (10 %, 20°C) |
4.1 - 4.5 |
| Absorbance at 210 nm |
max. 0.1 |
| Absorbance at 220 nm |
max. 0.06 |
| Absorbance at 230 nm |
max. 0.04 |
| Absorbance at 300 nm |
max. 0.02 |
| Absorbance 500 nm |
max. 0.02 |
| Appearance of the solution (c=10%) |
complying |
| Property |
Value |
| PKa (25 °C) |
(1) 2.15, (2) 6.82, (3) 12.38 (phosphoric acid) |
| Freezing point |
253 °C |
| Density |
2.34 g/cm3 |