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25059

酢酸カリウム

Name: 酢酸カリウム
Brand: SIGALD

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

別名:

K(acac)

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この商品について

化学式:

CH₃COOK

CAS番号:

127-08-2

分子量:

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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特性

vapor pressure

<0.0000001 hPa ( 25 °C)

Quality Level

200

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 (SO₄^2-): ≤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

詳細

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 E₂elimination 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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保管分類

13 - Non Combustible Solids

wgk

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

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Eagleson M.

Concise Encyclopedia Chemistry, 886-886 (1994)

Comparison of alkaline lysis with electroextraction and optimization of electric pulses to extract plasmid DNA from Escherichia coli.

Saša Haberl et al.

The Journal of membrane biology, 246(11), 861-867 (2013-07-09)

The use of plasmid DNA (pDNA) as a pharmaceutical tool has increased since it represents a safer vector for gene transfer compared to viral vectors. Different pDNA extraction methods have been described; among them is alkaline lysis, currently the most

Potassium glutamate as a transcriptional inhibitor during bacterial osmoregulation.

Jay D Gralla et al.

The EMBO journal, 25(7), 1515-1521 (2006-03-17)

Potassium glutamate accumulates upon hyper-osmotic shock and serves as a temporary osmoprotectant. This salt leads to transcriptional activation of sets of genes that allow the cell to achieve long-term adaptation to high osmolarity. The current experiments show that potassium glutamate