8.04918

Potassium tert-butylate

for synthesis

• 别名: Potassium tert-butylate
• 线性分子式: (CH₃)₃COK
• CAS号: 865-47-4
• 分子量: 112.21
• MDL编号: MFCD00012162
• UNSPSC代码: 12352107
• EC索引号: 212-740-3
• NACRES: NA.22

属性

• 等级: for synthesis; synthesis grade
• 质量水平: 200
• 蒸汽压: 0.02 hPa ( 20 °C)
• 方案: ≥98.0% (acidimetric)
• 表单: powder
• 自燃温度: 483 °C
• pH值（酸碱度）: 13 (20 °C, 5 g/L in H₂O, Hydrolysis)
• mp: 256-258 °C
• 密度: 1.19 g/cm³ at 20 °C
• 堆积密度: 500 kg/m³
• 储存温度: 2-30°C
• SMILES字符串: [K+].[O-]C(C)(C)C
• InChI: 1S/C4H9O.K/c1-4(2,3)5;/h1-3H3;/q-1;+1
• InChI key: LPNYRYFBWFDTMA-UHFFFAOYSA-N

说明

一般描述

Potassium tert-butylate (Potassium tert-Butoxide) is a strong, non-nucleophilic alkoxide base in organic chemistry. Potassium tert-butoxide catalyzes the reaction of hydro silanes and heterocyclic compounds to generate the silyl derivatives. It is used to catalyze the Michael addition reaction, Ramberg-Baecklund reaction, Pinacol rearrangement.

应用

Potassium tert-butylate is used to catalyzes the Michael addition reaction.

分析说明

Assay (acidimetric): ≥ 98,0 %(m)
Free KOH: ≤ 1 %(m)
Identity (IR): conforms

安全信息

• 象形图: GHS02,GHS05
• 警示用语：: Danger
• 危险声明: H228 - H252 - H260 - H314
• 预防措施声明: P210 - P231 + P232 - P260 - P280 - P303 + P361 + P353 - P305 + P351 + P338
• 危险分类: Eye Dam. 1 - Flam. Sol. 1 - Self-heat. 2 - Skin Corr. 1A - Water-react 1
• 补充剂危害: EUH014
• 储存分类代码: 4.2 - Pyrophoric and self-heating hazardous materials
• WGK: WGK 1
• 闪点(°F): Not applicable
• 闪点(°C): Not applicable