potassium methanolate,potassium methoxide
Potassium methoxide
CAS: 865-33-8
Molecular Formula: CH3KO
potassium methanolate,potassium methoxide - Names and Identifiers
| Name | Potassium methoxide |
| Synonyms | Methoxypotassium Potassium methylate Potassium methoxide potassium methanolate Methanol,potassium salt Potassium methylate for synthesis potassium methanolate,potassium methoxide |
| CAS | 865-33-8 |
| EINECS | 212-736-1 |
| InChI | InChI=1/CH3O.K/c1-2;/h1H3;/q-1;+1 |
potassium methanolate,potassium methoxide - Physico-chemical Properties
| Molecular Formula | CH3KO |
| Molar Mass | 70.13 |
| Density | 0.95g/mLat 20°C |
| Melting Point | -20°C |
| Boling Point | 84°C |
| Flash Point | 7°C |
| Water Solubility | may decompose |
| Solubility | Soluble in methanol and ethanol. |
| Vapor Presure | 0Pa at 25℃ |
| Appearance | Liquid |
| Specific Gravity | 0.95 |
| Color | Clear colorless |
| Exposure Limit | 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) |
| BRN | 3551544 |
| pKa | 15.17[at 20 ℃] |
| PH | 12.8 (7g/l, H2O, 20℃) |
| Storage Condition | Store below +30°C. |
| 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. |
| Sensitive | 7: reacts slowly with moisture/water |
| Refractive Index | n20/D 1.37 |
| Use | It is used as a condensation agent, a catalyst for the production of methyl formate, a strong alkaline catalyst for dimethylformamide, and can also be used as a pharmaceutical raw material. |
potassium methanolate,potassium methoxide - Risk and Safety
| Risk Codes | R11 - Highly Flammable R14 - Reacts violently with water R34 - Causes burns R67 - Vapors may cause drowsiness and dizziness R65 - Harmful: May cause lung damage if swallowed R63 - Possible risk of harm to the unborn child R48/20 - R39/23/24/25 - R38 - Irritating to the skin R23/24/25 - Toxic by inhalation, in contact with skin and if swallowed. |
| Safety Description | S8 - Keep container dry. S16 - Keep away from sources of ignition. S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S43 - In case of fire use ... (there follows the type of fire-fighting equipment to be used.) S45 - In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) S62 - If swallowed, do not induce vomitting; seek medical advice immediately and show this container or label. S46 - If swallowed, seek medical advice immediately and show this container or label. S36/37/39 - Wear suitable protective clothing, gloves and eye/face protection. S33 - Take precautionary measures against static discharges. S29 - Do not empty into drains. S25 - Avoid contact with eyes. |
| UN IDs | UN 3274 3/PG 2 |
| WGK Germany | 1 |
| FLUKA BRAND F CODES | 3-10-23 |
| TSCA | Yes |
| HS Code | 29051900 |
| Hazard Class | 4.2 |
| Packing Group | II |
potassium methanolate,potassium methoxide - Upstream Downstream Industry
| Raw Materials | Methyl alcohol |
potassium methanolate,potassium methoxide - Reference Information
| EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
| Overview | potassium methoxide is an alkoxide of methanol and the counter ion potassium and is used as a catalyst for strong bases and transesterification reactions, in particular for the production of biodiesel. Potassium methoxide includes liquid potassium methoxide and solid potassium methoxide. The liquid product is a colorless or yellowish, viscous methanol solution with a potassium methoxide content of about 28%-32%; The solid product is a pale yellow powder with a potassium methoxide content of about 95%-97%. In the past few years, potassium methoxide solution has become increasingly popular. In addition, it is also the most commonly used biodiesel catalyst. In 2018, the production share of potassium methoxide solution catalyst was 96.2%. This proportion will increase over the next six years. There are currently two major suppliers of potassium methoxide worldwide, Evonik and BASF. The industry has a high market concentration, with the total production share of the top three manufacturers in the world in 89.29%. The top three global suppliers are Evonik, BASF and Ruxi chemical. |
| Main application | 1. Potassium methoxide is an organometallic compound, which can be used as a condensing agent for the production of methyl formate, dimethyl carbonate, strong basic catalyst for dimethylformamide. 2, can be used for the production of sulfonamides (such as sulfadiazine, sulfamethazine, sulfamonomethoxine, sulfamethoxine, sulfamethazine, etc.), trimethoprim, methanol, vitamin A, vitamin B1 and other pharmaceutical products and pesticide products. 3, can be used as the treatment of edible fat and edible oil catalyst, leather tanning agent, can also be used for analytical reagents. |
| Use | as a condensation agent, a catalyst for the production of methyl formate, a strong basic catalyst for dimethylformamide, can also be used for pharmaceutical raw materials |
| spontaneous combustion temperature | 30-50°C |
Last Update：2024-04-10 22:29:15
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Raw Materials for potassium methanolate,potassium methoxide