Trimethylamine solution
| Physicochemical properties | Color and odor status: clear to pale yellow liquid, fishy/ammonia smell | Toxicity: Poisoning by inhalation/ingestion | |
| Corrosive: Highly corrosive | Flammability: Highly flammable | ||
| Density: Approximately 0.8 g/mL (30% solution). | Volatility: Extremely volatile | ||
| Melting point: -117.1°C for anhydrous, no clear melting point for aqueous solution | Acidity and alkalinity: strong alkaline (pH≈9.8). | ||
| Moisture absorption: strong moisture absorption | Spontaneous ignition point: 190°C | ||
| Viscosity: Low viscosity liquid | Deliquescence: No deliquescence | ||
| Flash point: 25% solution 1.7 °C (35 °F). | Degradability: Burning produces toxic nitrogen oxides | ||
| Boiling point: 30% (about -17.78°C for solution, 26.0°C for 40% solution, 2.9°C for anhydrous). | |||
| Stability: unstable, easy to react with acids, oxidants, halogenated organic compounds, etc., and strong hygroscopicity | |||
| Solubility: Highly soluble in water, slightly soluble in alcohol, ether, benzene, chloroform, etc | |||
| Various numbers | CAS: 75-50-3 | HS: 2921110000 | EINECS：200-875-0 |
| Uses | organic synthesis raw materials, preparation of quaternary ammonium salts, dyes, medicines, pesticides, rubber vulcanization accelerators, water treatment agents; Fragrance synthesis, food additives (limited use), oilfield chemicals, acid-base neutralizers. | ||
| Hazard category | 3.2 Flash point flammable liquids (also corrosive). | ||
| Fire-fighting measures | Fire extinguishing agent: dry powder, carbon dioxide, anti-soluble foam, avoid direct water; Precautions: Steam is heavier than air, easy to accumulate in low-lying places, and is rekindled when ignited, and toxic gas is produced by combustion; The container is easy to explode when heated, and the firefighters wear self-contained positive pressure respirators and anti-corrosion fireproof clothing to extinguish the fire in the upwind direction; Water spray cools the container to prevent the spread of leakage, and firefighting wastewater needs to be treated and discharged. | ||
| Emergency treatment | Skin contact: Immediately remove contaminated clothing, rinse with plenty of running water for at least 15 minutes, and seek medical attention; Eye contact: Immediately lift the eyelids, rinse with plenty of running water/saline for more than 15 minutes, and seek medical attention; Inhalation: Quickly leave the scene to a fresh place in the air, keep the airway open, and seek medical attention immediately if breathing is difficult to give oxygen; Ingestion: Rinse your mouth, do not induce vomiting, drink milk/egg white to protect the gastric mucosa, and seek medical attention immediately | ||
| Packaging, storage, transportation | Packaging: Most of the packaging is plastic drums or iron drums lined with anti-corrosion materials, 150 or 160 kg/drum, 30% solution can also be transported by tank truck; Storage: Cool, ventilated warehouse, warehouse temperature ≤ 25 °C, sealed storage, away from fire and heat sources, stored separately from acids, oxidants, halogenated organic matter, explosion-proof lighting, ventilation, leakage emergency treatment equipment and neutralizers in the warehouse; Transportation: Transportation according to flammable and corrosive liquids, it is strictly forbidden to mix acids and oxidizers, transport vehicles are grounded, equipped with fire-fighting equipment and anti-leakage equipment, and smoking and fire are strictly prohibited. | ||
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