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236497

Acétate de potassium

Name: Acétate de potassium
Brand: SIGALD

ACS reagent, ≥99.0%

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A propos de cet article

Formule linéaire :

CH₃COOK

Numéro CAS:

127-08-2

Poids moléculaire :

98.14

UNSPSC Code:

12352106

NACRES:

NA.21

PubChem Substance ID:

329752436

EC Number:

204-822-2

Beilstein/REAXYS Number:

3595449

MDL number:

MFCD00012458

Assay:

≥99.0%

Grade:

ACS reagent

Form:

powder or crystals

Solubility:

water: soluble 98.2 g/L at 20 °C

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Propriétés

grade

ACS reagent

Quality Segment

200

vapor pressure

<0.0000001 hPa ( 25 °C)

assay

≥99.0%

form

powder or crystals

impurities

≤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.)

anion traces

chloride (Cl^-): ≤0.003%, phosphate (PO₄^3-): ≤0.001%, sulfate (SO₄^2-): ≤0.002%

cation traces

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

suitability

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

Description

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.

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.

Other Notes

Go to Redi-Dri^™ Product Listing 791733

Legal Information

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

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Classe de stockage

13 - Non Combustible Solids

wgk

WGK 1

flash_point_f

Not applicable

flash_point_c