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Chemical Name: Triethyldialuminum Trichloride
Common Synonym: Aluminum, triethyl-, trichloro deriv.
Formula: C6H15Al2Cl3
Physical State: Usually a liquid, clear to slightly yellow
Odor: Sharp, strong chemical smell
Usage: Catalyst in synthetic chemistry, often for polymerization or in organic reactions where standard lab gloves and even fume hoods may see stress
Hazards: Highly reactive, water-reactive, catches fire on contact with moist air or water, corrosive fumes
Health Concerns: Severe skin and eye burns, respiratory tract irritation, delayed lung injury, possible long-term effects from recurrent exposure
Environmental Risks: Toxic to aquatic organisms; residues persist and move rapidly through water systems
Personal Risk: Exposure causes burning sensation, swelling, possible blindness if it touches eyes, risk of pulmonary edema if inhaled; can also aggravate chronic respiratory and skin conditions
Main Ingredient: Triethyldialuminum Trichloride
Concentration: Typically pure in commercial use
Impurities: Possible traces of triethylaluminum or aluminum trichloride due to manufacturing variability
Additives: Usually none except deliberate stabilizers or solvents; no dyes, no perfumes
Inhalation: Immediate removal to fresh air required, supply oxygen if showing breathing trouble, urgent hospital visit if irritation lingers
Skin Contact: Flood with running water, strip contaminated clothes, seek urgent medical help for burns or pain
Eye Contact: Quick flushing with copious fresh water, continuous rinsing during transport to emergency care
Ingestion: Never induce vomiting, rinse mouth with plenty of water, get to an emergency facility immediately
Suitable Extinguishing Agents: Dry powders such as graphite, sodium chloride, or special Class D fire agents only – don't use water, foam, carbon dioxide
Specific Dangers: High reactivity with water, serious risk of violent reaction releasing hydrogen chloride and possibly flammable gases
Protective Actions: Full chemical suit, breathing apparatus with positive pressure, keep distance, control runoff to avoid environmental spill
Special Notes: Burning can produce aluminum oxide, hydrogen chloride, and organoaluminum fumes that travel far
Evacuation: Clear area of unnecessary staff, ventilate spaces carefully
Spread Avoidance: Build dikes using nonflammable absorbent like sand or inert clays; avoid contact with water at all costs
Cleanup: Shovel dry material into secure containers, avoid dust, neutralize with dry calcium carbonate or similar material, seal and label waste
Personal Protection: Full splash-resistant clothing, chemical-resistant gloves, goggles, powered air-purifying respirator if any vapors present
Handling: Use in inert atmosphere such as nitrogen or argon, handle in fume hood, wear gloves and splash shield, open containers slowly
Storage: Keep in tightly closed corrosion-resistant containers, avoid glass and standard metals, store under dry inert gas, segregate from water, acids, oxidants, alcohols
Incompatibilities: Reacts dangerously with moisture, strong oxidizers, alcohols, bases – can ignite combustibles and corrode metals
Engineering Controls: Local exhaust ventilation, airtight enclosures, remote handling tools
Personal Protective Equipment: Chemical-resistant gloves (butyl, nitrile), face shield, flame-retardant lab coat, full goggles, respiratory protection with cartridges rated for acid gases and organometallics
Hygiene Measures: No eating or drinking near use zones, immediate washing of hands and face, separate street and work clothes
Appearance: Clear to pale yellow liquid
Boiling Point: Ranges between 130°C to 190°C under nitrogen
Melting Point: Below 0°C
Vapor Pressure: Can build up under heat or at reduced pressure
Solubility: Decomposes violently in water, soluble in organic solvents like toluene or hexane
Vapor Density: Heavier than air
Odor Threshold: Detectable at low levels due to pungency
Reactivity Profile: Reacts instantly with water, moisture in air, many organics
Stability Conditions: Only stable under dry, inert atmosphere at modest temperatures
Decomposition: Gives off aluminum oxide, hydrogen chloride, hydrocarbons – highly corrosive, can spread fast
Hazardous Reactions: Spontaneous ignition possible with air or water, violence escalates with strong acids, oxidizers
Acute Effects: Severe burns to skin, eyes, tissues, target organ damage for lungs
Chronic Effects: Risk of dermatitis, possible irreversible lung scarring, sensitization of skin or respiratory tract
Routes of Exposure: Inhalation, skin and eye absorption, accidental ingestion
Delayed Reactions: Pulmonary edema, late-onset chemical pneumonia, long recovery times and high lethality without intervention
Toxicity Data: Documented cases of burns, fatalities after accidental splashes or fume inhalation; values not always available for all endpoints
Persistence: Reacts with soil moisture to give corrosive products, can change local pH
Toxicity: Kills fish, aquatic plants at low concentrations, presents lingering degradation risk
Degradation Pathways: Hydrolysis to aluminum oxides, chloride release, hydrocarbons in water or soil
Bioaccumulation: Not readily stored by organisms, but disruption in ecosystems can last
Waste Handling: Treat remnants and wash solutions as hazardous, avoid drains, neutralize before disposal
Methods: React slowly with dry, neutral materials and slowly quench under expert supervision, pack in sealed drums
Regulations: Follow hazardous waste law, landmark bans on casual landfill or incineration by municipal facilities
Environmental Impact: Persistent releases damage water tables and soil chemistry, so careful segregation is mandatory
Hazard Level: High – falls under “dangerous goods” for road, sea, air
Packing Group: Demands leakproof, fireproof containers with dry inert gas
Labeling: “Corrosive,” “Water Reactive,” and “Flammable” required
Shipping Precautions: Keep completely dry, segregate from food, flammables, oxidizers, acids, and personal baggage
Response to Spills in Transit: Emergency protocols require trained hazmat teams, with immediate notification of authorities
Legal Control: Strict limits on occupational exposure; major regulations govern workplace air, safe industrial use, and environmental release
Reporting Requirements: Any significant spill must be reported to regional and national agencies
Restrictions: Common bans on public sale or amateur handling; only licensed handlers in specialized labs or factories
Ongoing Revisions: Safety limits and best practices updated frequently based on new toxicity and accident reports
