CAS Number 7758-11-4
Linear Formula K2HPO4
Molecular Weight 174.18
EC Number 231-834-5
MDL number MFCD00011383
PubChem Substance ID 24881849
| grade for luminescence | for molecular biology |
| product line | BioUltra |
| assay =99.0% (T) | impurities DNases, none detected |
| | RNases, none detected |
| | insoluble matter, passes filter test |
| | phosphatases, none detected |
| | proteases, none detected |
| pH | 8.7-9.3 (25 °C, 1 M in H2O) |
| solubility | H2O: soluble1 M at 20 °C, clear, colorless |
| anion traces | chloride (Cl-): =50 mg/kg |
| | sulfate (SO42-): =50 mg/kg |
| cation traces | Al: =5 mg/kg |
| | As: =0.1 mg/kg |
| | Ba: =5 mg/kg |
| | Bi: =5 mg/kg |
| | Ca: =10 mg/kg |
| | Cd: =5 mg/kg |
| | Co: =5 mg/kg |
| | Cr: =5 mg/kg |
| | Cu: =5 mg/kg |
| | Fe: =10 mg/kg |
| | Li: =5 mg/kg |
| | Mg: =5 mg/kg |
| | Mn: =5 mg/kg |
| | Mo: =5 mg/kg |
| | Na: =5000 mg/kg |
| | Ni: =5 mg/kg |
| | Pb: =5 mg/kg |
| | Sr: =5 mg/kg |
| | Zn: =5 mg/kg |
| ? | 1 M in H2O |
| UV absorption | ?: 260 nm Amax: =0.20 |
| | ?: 280 nm Amax: =0.15 |
Application
Potassium phosphate monobasic and dibasic, are used to create phosphate buffered solutions such as potassium phosphate buffered water and saline solutions used in biological applications.