Potassium phosphate dibasic
SIGMA/60353 - anhydrous, suitable for luminescence, Molecular Biology, BioUltra, ≥99.0% (T)
Synonym: Dipotassium hydrogenphosphate; Dipotassium phosphate; sec.-Potassium phosphate
CAS Number: 7758-11-4
Empirical Formula (Hill Notation): HK2O4P
Molecular Weight: 174.18
EC Number: 231-834-5
MDL Number: MFCD00011383
Linear Formula: K2HPO4
Product Type: Chemical
| λ | 1 M in H2O |
| anion traces | chloride (Cl-): ≤50 mg/kg |
| sulfate (SO42-): ≤100 mg/kg | |
| assay | ≥99.0% (T) |
| 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 | |
| form | powder or crystals |
| grade | Molecular Biology |
| impurities | DNases, none detected |
| insoluble matter, passes filter test | |
| phosphatases, none detected | |
| proteases, none detected | |
| RNases, none detected | |
| InChI | 1S/2K.H3O4P/c;;1-5(2,3)4/ |
| InChI key | ZPWVASYFFYYZEW-UHFFFAOYSA |
| pH | 8.7-9.3 (25 °C, 1 M in H2O) |
| product line | BioUltra |
| Quality Level | 200  |
| SMILES string | [K+].[K+].OP([O-])([O-])= |
| solubility | H2O: 1 M at 20 °C, clear, colorless |
| suitability | suitable for luminescence |
| UV absorption | λ: 260 nm Amax: ≤0.20 |
| λ: 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. |
| RIDADR | NONH for all modes of transport |
| WGK Germany | WGK 1 |
| Flash Point(F) | Not applicable |
| Flash Point(C) | Not applicable |
| Purity | ≥99.0% (T) |
| UNSPSC | 12161700 |