Potassium acetate
SIGMA/60035 - BioUltra, for molecular biology, ≥99.0% (NT)
CAS Number: 127-08-2
Empirical Formula (Hill Notation): C2H3KO2
Molecular Weight: 98.14
EC Number: 204-822-2
MDL Number: MFCD00012458
Linear Formula: CH3COOK
Product Type: Chemical
λ | 1 M in H2O |
anion traces | chloride (Cl-): ≤50 mg/kg |
sulfate (SO42-): ≤50 mg/kg | |
assay | ≥99.0% (NT) |
cation traces | Al: ≤5 mg/kg |
As: ≤0.1 mg/kg | |
Ba: ≤5 mg/kg | |
Bi: ≤5 mg/kg | |
Ca: ≤50 mg/kg | |
Cd: ≤5 mg/kg | |
Co: ≤5 mg/kg | |
Cr: ≤5 mg/kg | |
Cu: ≤5 mg/kg | |
Fe: ≤5 mg/kg | |
Li: ≤5 mg/kg | |
Mg: ≤10 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 | |
density | 1.57 g/cm3 at 25 °C (lit.) |
form | powder or crystals |
grade | for molecular biology |
impurities | DNases, none detected |
insoluble matter, passes filter test | |
phosphatases, none detected | |
proteases, none detected | |
RNases, none detected | |
InChI | 1S/C2H4O2.K/c1-2(3)4;/h1H |
InChI key | SCVFZCLFOSHCOH-UHFFFAOYSA |
pH | 7.0-9.0 (25 °C, 1 M in H2O) |
product line | BioUltra |
Quality Level | 200 |
SMILES string | [K+].CC([O-])=O |
solubility | H2O: 1 M at 20 °C, clear, colorless |
UV absorption | λ: 260 nm Amax: ≤0.040 |
λ: 280 nm Amax: ≤0.020 |
Application: | Potassium acetate is used in molecular biology to precipitate sodium dodecyl sulfate and SDS-bound proteins that result from SDS extraction protocols. Potassium acetate facilitates the purification of DNA when using SDS protocols and ethanol DNA precipitation protocols. |
RIDADR | NONH for all modes of transport |
WGK Germany | WGK 1 |
Flash Point(F) | Not applicable |
Flash Point(C) | Not applicable |
Purity | ≥99.0% (NT) |
Density | 1.57 g/cm3 at 25 °C (lit.) |
UNSPSC | 12161700 |