Potassium methoxide
- Product NamePotassium methoxide
- CAS865-33-8
- CBNumberCB0501840
- MFCH3KO
- MW70.13
- EINECS212-736-1
- MDL NumberMFCD00012416
- MOL File865-33-8.mol
Chemical 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 20/D 1.37 |
| Flash point: | 11 °C - closed cup |
| storage temp. | Store below +30°C. |
| solubility | Soluble in methanol and ethanol. |
| pka | 15.17[at 20 ℃] |
| form | powder |
| color | Clear colorless |
| Specific Gravity | 0.95 |
| 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. |
| InChI | 1S/CH3O.K/c1-2;/h1H3;/q-1;+1 |
| InChIKey | BDAWXSQJJCIFIK-UHFFFAOYSA-N |
| SMILES | [K+].C[O-] |
| CAS DataBase Reference | 865-33-8(CAS DataBase Reference) |
| EPA Substance Registry System | Methanol, potassium salt (865-33-8) |
Safety
| Symbol(GHS) |
  GHS02,GHS05 |
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| Signal word | Danger | |||||||||
| Hazard statements | H251-H314 | |||||||||
| Precautionary statements | P235-P280-P260-P264-P301+P330+P331-P303+P361+P353-P363-P304+P340-P310-P305+P351+P338-P407-P420-P405-P501 | |||||||||
| PPE | Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges | |||||||||
| 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 | TSCA listed | |||||||||
| HazardClass | 4.2 | |||||||||
| PackingGroup | II | |||||||||
| HS Code | 2905199090 | |||||||||
| Storage Class | 4.2 - Pyrophoric and self-heating hazardous materials | |||||||||
| Hazard Classifications |
Self-heat. 1 Skin Corr. 1B |
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| REACH Registrations | Active | |||||||||
| Limited Quantities | 1.0 L (0.3 gallon) (liquid) | |||||||||
| Excepted Quantities | Max Inner Pack (30g or 30ml) and Max Outer Pack (500g or 500ml) | |||||||||
| NFPA 704: |
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