25059

酢酸カリウム

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

• 別名: K(acac)
• 化学式: CH₃COOK
• CAS番号: 127-08-2
• 分子量: 98.14
• Beilstein: 3595449
• EC Number: 204-822-2
• MDL番号: MFCD00012458
• UNSPSCコード: 12352302
• PubChem Substance ID: 329752771
• NACRES: NA.21

特性

• 蒸気圧: <0.0000001 hPa ( 25 °C)
• グレード: puriss.
• アッセイ: 99-101%
• 形状: crystalline
• 品質: meets analytical specification of Ph. Eur., BP, E261
• 不純物: residual solvents, complies; ≤0.0004% heavy metals (as Pb); ≤0.05% KMnO₄ red. matter (as HCOOH)
• 損失: ≤1% loss on drying, 150 °C, 2 h
• pH: 7.5-9 (20 °C, 5%)
• 密度: 1.57 g/cm³ at 25 °C (lit.)
• 微量陰イオン: chloride (Cl^-): ≤50 mg/kg; sulfate (SO₄^2-): ≤100 mg/kg
• 微量陽イオン: 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記法: [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

詳細

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.

アプリケーション

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.

安全性情報

• 保管分類コード: 13 - Non Combustible Solids
• WGK: WGK 1
• 引火点(°F): Not applicable
• 引火点(℃): Not applicable