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Key Documents

236497

Sigma-Aldrich

Potassium acetate

ACS reagent, ≥99.0%

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About This Item

Linear Formula:
CH3COOK
CAS Number:
Molecular Weight:
98.14
Beilstein:
3595449
EC Number:
MDL number:
UNSPSC 코드:
12352106
PubChem Substance ID:
NACRES:
NA.21

Grade

ACS reagent

Quality Level

vapor pressure

<0.0000001 hPa ( 25 °C)

분석

≥99.0%

형태

powder or crystals

불순물

≤0.005% insolubles

pH

6.5-9.0 (25 °C, 5%)

solubility

water: soluble 98.2 g/L at 20 °C

density

1.57 g/cm3 at 25 °C (lit.)

음이온 미량물

chloride (Cl-): ≤0.003%
phosphate (PO43-): ≤0.001%
sulfate (SO42-): ≤0.002%

양이온 미량물

Ca: ≤0.005%
Fe: ≤5 ppm
Mg: ≤0.002%
Na: ≤0.03%
heavy metals: ≤5 ppm (as Pb)

적합성

complies for IR spectroscopy

SMILES string

[K+].CC([O-])=O

InChI

1S/C2H4O2.K/c1-2(3)4;/h1H3,(H,3,4);/q;+1/p-1

InChI key

SCVFZCLFOSHCOH-UHFFFAOYSA-M

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일반 설명

Potassium acetate is a hygroscopic material used as a base in organic synthesis. It can also be used as a buffer and neutralizing agent.

애플리케이션

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.

법적 정보

Redi-Dri is a trademark of Sigma-Aldrich Co. LLC

Storage Class Code

13 - Non Combustible Solids

WGK

WGK 1

Flash Point (°F)

Not applicable

Flash Point (°C)

Not applicable


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