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號碼: MFCD00012162
• 分類程式碼代碼: 12352107
• 酶委員會索引編號: 212-740-3
• NACRES: NA.22

属性

• 蒸汽壓力: 0.02 hPa ( 20 °C)
• 品質等級: 200
• 化驗: ≥98.0% (acidimetric)
• 形狀: powder
• 自燃溫度: 483 °C
• pH值: 13 (20 °C, 5 g/L in H₂O, Hydrolysis)
• mp: 256-258 °C
• 密度: 1.19 g/cm³ at 20 °C
• 體積密度: 500 kg/m³
• 儲存溫度: 2-30°C
• InChI: 1S/C4H9O.K/c1-4(2,3)5;/h1-3H3;/q-1;+1
• InChI 密鑰: LPNYRYFBWFDTMA-UHFFFAOYSA-N

说明

一般說明

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.

應用

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

分析報告

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

安全信息

• 象形圖: GHS02,GHS05
• 訊號詞: Danger
• 危險聲明: H228 - H252 - H260 - H314
• 防範說明: P210 - P231 + P232 - P260 - P280 - P303 + P361 + P353 - P305 + P351 + P338
• 危險分類: Eye Dam. 1 - Flam. Sol. 1 - Self-heat. 2 - Skin Corr. 1A - Water-react 1
• 安全危害: EUH014
• 儲存類別代碼: 4.2 - Pyrophoric and self-heating hazardous materials
• 水污染物質分類（WGK）: WGK 1
• 閃點（°F）: Not applicable
• 閃點（°C）: Not applicable