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Merck

25059

Potassium acetate

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

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Fórmula lineal:
CH3COOK
Número CAS:
Peso molecular:
98.14
UNSPSC Code:
12352302
NACRES:
NA.21
PubChem Substance ID:
EC Number:
204-822-2
Beilstein/REAXYS Number:
3595449
MDL number:
Assay:
99-101%
Form:
crystalline
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vapor pressure

<0.0000001 hPa ( 25 °C)

Quality Level

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

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

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.

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.



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Clase de almacenamiento

13 - Non Combustible Solids

wgk

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable



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