A5385312
Methanol, potassium salt , 95% , 865-33-8
Synonym(s):
Potassium methylate
CAS NO.：865-33-8
Empirical Formula: CH3KO
Molecular Weight: 70.13
MDL number: MFCD00012416
EINECS: 212-736-1
Update time: 2022-07-08
PRODUCT Properties
| Melting point: | -20°C |
| Boiling point: | 84°C |
| Density | 0.95 g/mL at 20 °C |
| vapor pressure | 0Pa at 25℃ |
| refractive index | n |
| Flash point: | 7°C |
| storage temp. | Store below +30°C. |
| solubility | Soluble in methanol and ethanol. |
| pka | 15.17[at 20 ℃] |
| form | Liquid |
| Specific Gravity | 0.95 |
| color | Clear colorless |
| PH | 12.8 (7g/l, H2O, 20℃) |
| Water Solubility | may decompose |
| Sensitive | Moisture Sensitive |
| Hydrolytic Sensitivity | 7: reacts slowly with moisture/water |
| BRN | 3551544 |
| Exposure limits | ACGIH: TWA 200 ppm; STEL 250 ppm (Skin) OSHA: TWA 200 ppm(260 mg/m3) NIOSH: IDLH 6000 ppm; TWA 200 ppm(260 mg/m3); STEL 250 ppm(325 mg/m3) |
| Stability: | Stable. Reacts violently with water. Moisture sensitive. Absorbs carbon dioxide from the air. Incompatible with acids, strong oxidizing agents, acid chlorides, acid anhydrides, alkali metals. |
| CAS DataBase Reference | 865-33-8(CAS DataBase Reference) |
| EPA Substance Registry System | Methanol, potassium salt (865-33-8) |
Description and Uses
Potassium methoxide is used as a chemical intermediate. It is also used in biodiesel production and in fuel additives. It acts as a catalyst for the preparation of methyl formate and an alkaline catalyst for dimethyl formamide. Further, it is used as versatile reagents in chemical reactions such as condensation, esterification, alkoxylation and etherification, Claisen condensation, Wolf-Kishner reduction and Stobbe reaction.
Safety
| Symbol(GHS) |     GHS02,GHS05,GHS06,GHS08 |
| Signal word | Danger |
| Hazard statements | H225-H301+H311+H331-H314-H370 |
| Precautionary statements | P210-P280-P301+P310+P330-P301+P330+P331-P303+P361+P353-P305+P351+P338+P310 |
| Hazard Codes | F,T,C |
| Risk Statements | 11-14-34-67-65-63-48/20-39/23/24/25-38-23/24/25 |
| Safety Statements | 8-16-26-43-45-62-46-36/37/39-33-29-25 |
| RIDADR | UN 3274 3/PG 2 |
| WGK Germany | 1 |
| F | 3-10-23 |
| Autoignition Temperature | 30 - 50 °C |
| TSCA | Yes |
| HazardClass | 4.2 |
| PackingGroup | II |
| HS Code | 29051900 |
