Potassium acetate
SIGALD/236497 - ACS reagent, ≥99.0%
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
| anion traces | chloride (Cl-): ≤0.003% |
| phosphate (PO43-): ≤0.001% | |
| sulfate (SO42-): ≤0.002% | |
| assay | ≥99.0% |
| cation traces | Ca: ≤0.005% |
| Fe: ≤5 ppm | |
| heavy metals: ≤5 ppm (as Pb) | |
| Mg: ≤0.002% | |
| Na: ≤0.03% | |
| density | 1.57 g/cm3 at 25 °C (lit.) |
| form | powder or crystals |
| grade | ACS reagent |
| impurities | ≤0.005% insolubles |
| InChI | 1S/C2H4O2.K/c1-2(3)4;/h1H |
| InChI key | SCVFZCLFOSHCOH-UHFFFAOYSA |
| pH | 6.5-9.0 (25 °C, 5%) |
| Quality Level | 200 ![]() |
| SMILES string | [K+].CC([O-])=O |
| solubility | water: soluble 98.2 g/L at 20 °C |
| suitability | complies for IR spectroscopy |
| vapor pressure | <0.0000001 hPa ( 25 °C) |
| Application: | Potassium acetate can be used: • As a catalyst in the glycolysis of rigid polyurethane (PU) using DEG (diethylene glycol) as a solvent. • As a nucleophilic catalyst for addition and polymerization reaction. • As a nucleophilic catalyst in the regioselective reaction of epoxides with S-phenyl thioesters. • As a promoter/base in transition metal-catalyzed reactions. • As a source of methyl radical in photo-decarboxylative nucleophilic additions to phthalimides and source of potassium ion for templating reactions. Potassium acetate can also be used as a base: • In the Lossen rearrangement of hydroxamic acid. • In the E2 elimination′s reaction. • In the fragmentation of α,α-dichloroketoesters and deprotonation of alcohols. |
| General description: | Potassium acetate is a hygroscopic material used as a base in organic synthesis. It can also be used as a buffer and neutralizing agent. |
| Legal Information: | Redi-Dri is a trademark of Sigma-Aldrich Co. LLC |
| Other Notes: | Go to Redi-Dri™ Product Listing 791733 ![]() |
| Packaging: | 100, 500 g in poly bottle |
| Packaging: | 12 kg in poly drum |
| Packaging: | 2.5, 4×2.5 kg in poly bottle |
| RIDADR | NONH for all modes of transport |
| WGK Germany | WGK 1 |
| Flash Point(F) | Not applicable |
| Flash Point(C) | Not applicable |
| Purity | ≥99.0% |
| Density | 1.57 g/cm3 at 25 °C (lit.) |
| UNSPSC | 12352106 |

