Propionaldehyde
| Physicochemical properties | Color and odor state: colorless liquid, with pungent odor | Flammability: Extremely flammable | |
| Density: 0.805g/cm 3 | Volatility: Extremely volatile | ||
| Flash point: -25.9°C | Corrosive: corrosive, causing skin and eye burns | ||
| Boiling point: 47-49°C | Melting point: -81°C | ||
| Acidity-alkaline: neutral | Moisture absorption: No moisture absorption | ||
| Spontaneous ignition point: 190°C | Viscosity: Low viscosity liquid | ||
| Deliquescence: No deliquescence | |||
| Toxicity: Low concentration irritates the eyes and nose, high concentration has an anesthetic effect, can cause eye and skin burns, and is easily absorbed through the skin | |||
| Decomposition: It decomposes into carbon dioxide and ethane under the action of ultraviolet light/heat/iodine, and decomposes to produce toxic oxides by combustion | |||
| Stability: Unstable, easy to polymerize, avoid high heat, open flame, oxidizing agent | Solubility: Soluble in water, miscible in most organic solvents such as ethanol and ether | ||
| Various numbers | CAS: 123-38-6 | HS: 2912190090 | EINECS：204-623-0 |
| Uses | It is widely used in synthetic fibers, rubber accelerators, anti-aging agents, alkyd resins, pesticides, medicine and other fields, and can also be used to prepare antifreeze, lubricants and dehydrating agents. | ||
| Hazard category | 3.2 Flash point flammable liquids | ||
| Fire-fighting measures | Important raw materials for fine chemicals, producing intermediates such as n-propanol, propionic acid, trihydroxymethyl ethane, and propionaldehyme oxime; preparation of alkyd resin, pesticide herbicide/insecticide, drug sleepertong/ethylthiazide; Coatings, plastics, food, light textiles, feed, rubber additives raw materials, ethylene polymer chain terminators, antifreeze agents, lubricants, dehydrating agents. | ||
| Emergency treatment | Fire extinguishing agents: For small fires, use dry powder, carbon dioxide, and alcohol-resistant foam; for large fires, use water mist and alcohol-resistant foam, and avoid direct water impact. Precautions: Combustion produces toxic smoke. Firefighters should wear self-contained positive pressure breathing apparatus and full-body fireproof and anti-toxic suits, and extinguish the fire from the upwind direction. Containers may leak when heated. Cool the container with water until the fire is extinguished to prevent vapor re-ignition. | ||
| Packaging, storage, transportation | Packing: iron, drum 160kg/drum, also can be tanker bulk; Storage: Cool, ventilated warehouse, warehouse temperature ≤ 20 °C, sealed and protected from light, away from fire and heat sources, stored separately from oxidants, reducing agents, and acids, using explosion-proof lighting, ventilation, and leakage emergency treatment equipment in the warehouse; Transportation: According to the transportation of extremely flammable liquids, tank trucks must be grounded, mixed transportation of contraindicated substances is strictly prohibited, transportation vehicles are equipped with fire-fighting equipment, smoking and fire are strictly prohibited, and transportation in the morning and evening in summer. | ||
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