Potassium phosphate dibasic
SIGMA/60353 - anhydrous, for luminescence, for 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 | for luminescence |
for 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 |
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 |