Potassium tert-butoxide
ALDRICH/659878 - sublimed grade, 99.99% trace metals basis
Synonym: Potassium tert-butylate; Potassium t-butoxide
CAS Number: 865-47-4
Empirical Formula (Hill Notation): C4H9KO
Molecular Weight: 112.21
EC Number: 212-740-3
MDL Number: MFCD00012162
Linear Formula: (CH3)3COK
Product Type: Chemical
| assay | 99.99% trace metals basis |
| form | solid |
| grade | sublimed grade |
| InChI | 1S/C4H9O.K/c1-4(2,3)5;/h1 |
| InChI key | LPNYRYFBWFDTMA-UHFFFAOYSA |
| mp | 256-258 °C (dec.) (lit.) |
| Quality Level | 100  |
| reaction suitability | core: potassium |
| SMILES string | [K+].CC(C)(C)[O-] |
| vapor pressure | 1 mmHg ( 220 °C) |
| Application: | Potassium tert-butoxide can be used as: • A precursor to fabricate potassium-containing thin films via the atomic layer deposition (ALD) method. • A catalyst for efficient functionalization of silsesquioxanes enabling the preparation of hybrid materials used in optics, electronics, and coating. A strong base in the synthesis of nitriles from aldehydes. • A promoter and base in cyclization and coupling reactions for enabling a wide range of bond-forming reactions via both ionic and radical mechanisms. • Mizoroki-Heck-Type reactions are mediated by potassium tert-butoxide. potassium tert-butoxide can commence the anionic polymerization of carbazolyl-substituted oxiranes. |
| General description: | Potassium tert-butoxide (KOtBu) is a strong, non-nucleophilic base widely used in organic synthesis and materials science. It appears as a white to off-white crystalline solid that is highly reactive, especially in the presence of moisture or air. It can be used as a vapor deposition precursor in chemical vapor deposition (MOCVD) processes for thin film fabrication. It offers potential utility in depositing potassium-containing films or modifying surface chemistry in the production of advanced materials. |
| Packaging: | 5, 25 g in glass bottle |
| Symbol |   GHS02,GHS05 |
| Signal word | Danger |
| Hazard statements | H228 - H260 - H314 |
| Precautionary statements | P210 - P231 + P232 - P260 - P280 - P303 + P361 + P353 - P305 + P351 + P338 |
| Hazard Codes | F,C |
| Risk Statements | 11-14-35 |
| Safety Statements | 7/9-16-26-36/37/39-43-45 |
| RIDADR | UN 3131 8(4.3) / PGI |
| WGK Germany | WGK 1 |
| Flash Point(F) | Not applicable |
| Flash Point(C) | Not applicable |
| Supplemental Hazard Statements | EUH014 |
| Purity | 99.99% trace metals basis |
| mp | 256-258 °C (dec.) (lit.) |
| UNSPSC | 12352103 |