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Merck
CN

25059

Potassium acetate

puriss., meets analytical specification of Ph. Eur., BP, E261, 99-101%

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About This Item

Linear Formula:
CH3COOK
CAS Number:
127-08-2
Molecular Weight:
98.14
UNSPSC Code:
12352302
NACRES:
NA.21
PubChem Substance ID:
329752771
EC Number:
204-822-2
Beilstein/REAXYS Number:
3595449
MDL number:
MFCD00012458
Assay:
99-101%
Form:
crystalline

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Product Name

Potassium acetate, puriss., meets analytical specification of Ph. Eur., BP, E261, 99-101%

InChI key

SCVFZCLFOSHCOH-UHFFFAOYSA-M

InChI

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

SMILES string

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

vapor pressure

<0.0000001 hPa ( 25 °C)

grade

puriss.

assay

99-101%

form

crystalline

quality

meets analytical specification of Ph. Eur., BP, E261

impurities

residual solvents, complies
≤0.0004% heavy metals (as Pb)
≤0.05% KMnO4 red. matter (as HCOOH)

loss

≤1% loss on drying, 150 °C, 2 h

pH

7.5-9 (20 °C, 5%)

density

1.57 g/cm3 at 25 °C (lit.)

anion traces

chloride (Cl-): ≤50 mg/kg
sulfate (SO42-): ≤100 mg/kg

cation traces

Al: ≤1 mg/kg
As: ≤2 mg/kg
Ca: ≤50 mg/kg
Cu: ≤4 mg/kg
Fe: ≤10 mg/kg
Mg: ≤30 mg/kg
Na: ≤5000 mg/kg
Pb: ≤4 mg/kg
Zn: ≤10 mg/kg

Quality Level

200

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Application

Potassium acetate is used as a catalyst:
  • In the preparation of 2-hexadecylfuran from furfuraldehyde and palmitic anhydride.
  • Potassium acetate can be used as a base:,In Lossen rearrangement of hydroxamic acids to carbamic acids.
  • In E2 elimination reactions.
  • In the formation of lactones from alkoxyamide substrates.

Potassium acetate is also used as a promoter:
  • In the borylation of aryl chlorides with bis(pinacolato)diboron in presence of palladium catalyst.
  • In the β-boration of α, β-unsaturated ketones.

General description

Potassium acetate is a hygroscopic potassium salt. It can be prepared by the neutralization of acetic acid with potassium hydroxide or potassium carbonate. It can be used as nucleophilic catalyst for polymerization and addition reactions, source of acetate anion in substitution and addition reaction. It can be used as a base and promoter in various organic reactions.

Storage Class

13 - Non Combustible Solids

wgk

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

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Certificates of Analysis (COA)

Lot/Batch Number
BCCH0721
BCCH6445
BCCG5785
BCCF7378
BCCF3195

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