Triethylaluminum

Triethylaluminum 1. Physical and chemical properties: National standard code 42022 CAS number 97-93-8 Chinese name Triethylaluminum English name aluminum triethyl； Triethylaluminium 　　Alternative names 　　Molecular formula: C6H15Al ； (CH3CH2)3Al Appearance and properties: Colorless transparent liquid with a strong musty odor. Molecular weight: 114.17; Vapor pressure: 0.53 kPa at 83°C; Flash point: < -52°C; Melting point: -52.5°C; Boiling point: 194°C; Solubility: Soluble in benzene; Density: Relative density (water = 1): 0.84; Stability: Unstable; Hazard symbol: 9 (self-igniting substance). Main uses: Used in organic synthesis, as well as as a rocket fuel. 2. Environmental impact: I. Health hazards; Routes of exposure: Inhalation, ingestion. 　　Health hazards: It has a strong irritating and corrosive effect, primarily damaging the respiratory tract and eye conjunctiva; inhalation of high concentrations can cause pulmonary edema. Inhaling its smoke can cause smoke fever. Skin contact can cause burns, leading to congestion, swelling, blisters, and severe pain. 　　II. Toxicological data and environmental behavior Hazardous characteristics: It has high chemical reactivity and will smoke and catch fire upon contact with air. It is extremely sensitive to trace amounts of oxygen and moisture, and can easily lead to combustion and explosion. It reacts violently upon contact with acids, halogens, alcohols, and amines. It decomposes vigorously upon contact with water, releasing flammable alkane gases. 　　Combustion (decomposition) products: carbon monoxide, carbon dioxide, aluminum oxide. 　　3. On-site emergency monitoring methods: 4. Laboratory monitoring methods: Atomic absorption spectroscopy 5. Environmental standards: The maximum allowable concentration of harmful substances in workshop air in the former Soviet Union is 2 mg/m3. 6. Emergency response measures: I. Emergency response to leaks – Evacuate people from the area affected by the leak to a safe area promptly, and isolate that area while strictly restricting access. Cut off the source of fire. Wear a self-contained positive-pressure breathing apparatus and a gas mask. Do not come into direct contact with the spill. Seal the source of leakage as much as possible. Minor leaks: Absorb or soak up with sand or other non-flammable materials. Large-scale leakage: Build dikes or dig pits to contain it. Transfer to a tank truck or specialized collector using an explosion-proof pump, and recycle it or transport it to a waste disposal facility for disposal. 　　II. Protective Measures Respiratory protection: During work, a self-priming filter-type gas mask (full-face mask) should be worn. An air respirator must be worn during emergency rescue or evacuation. 　　Eye protection: Protection is provided under respiratory protection. 　　Body protection: Wear a rubberized gas mask suit. 　　Hand protection: Wear rubber gloves. 　　Others: Smoking is strictly prohibited at the work site. After work, take a shower and change clothes. Store the clothes contaminated with toxins separately and wash them before using them again. 　　III. First aid measures Skin contact: Immediately remove the contaminated clothing and rinse the affected area with plenty of flowing water for at least 15 minutes. Seek medical attention. 　　Eye contact: Immediately lift the eyelids and rinse thoroughly with plenty of flowing water or saline for at least 15 minutes. Seek medical attention. 　　Inhalation: Quickly move to a place with fresh air. Keep the airway clear. If there is difficulty breathing, administer oxygen. If breathing stops, perform artificial respiration immediately. Seek medical attention. 　　Ingestion: If swallowed accidentally, rinse the mouth with water and give milk or egg white to drink. Seek medical attention. 　　Fire extinguishing method: Extinguishing agents: dry powder, dry sand. Water or foam extinguishers are prohibited. For the explanation provided by Baidu Baike, please refer to LZ who is working on polymerization

It can be used as a catalyst to prevent contact with water and air

It should act as a catalyst promoter by forming an active center with the main catalyst, as well as by eliminating impurities in the system and protecting the catalyst