Tris(2-methylpentyl)alumane

Tris(2-methylpentyl)alumane is an organoaluminum compound with the molecular formula C18H39Al and CAS number 3711-23-7. This chemical consists of an aluminum atom bonded to three 2-methylpentyl groups, resulting in a molecular weight of 282.5 g/mol. It belongs to the family of trialkylaluminum compounds, which are known for their high reactivity and pyrophoric properties, making them valuable in various industrial applications requiring strong reducing agents or catalysts.

Tris(2-methylpentyl)alumane is typically a colorless to pale yellow liquid at room temperature with a characteristic organometallic odor. The compound is highly sensitive to air and moisture, readily reacting with oxygen and water vapor. It is soluble in non-polar organic solvents such as hydrocarbons and ethers but must be handled under inert atmosphere conditions. The substance exhibits pyrophoric characteristics, meaning it can spontaneously ignite when exposed to air at ambient temperatures.

Tris(2-methylpentyl)alumane is primarily used as a catalyst or co-catalyst in polymerization reactions, particularly in the production of polyolefins and other synthetic polymers. It serves as a strong reducing agent in organic synthesis and metal processing applications. The compound is also utilized in chemical vapor deposition (CVD) processes for producing aluminum-containing thin films and coatings. Additionally, it finds applications in the preparation of other organoaluminum compounds and as an alkylating agent in specialized chemical syntheses.

Tris(2-methylpentyl)alumane must be handled under strict inert atmosphere conditions using nitrogen or argon gas. Essential personal protective equipment includes chemical-resistant gloves, safety goggles, and flame-resistant laboratory clothing. All operations should be conducted in well-ventilated areas or under fume hoods, away from ignition sources. Use appropriate grounding procedures to prevent static electricity buildup. Handle containers carefully to avoid spillage, and ensure fire suppression equipment is readily available. Training in pyrophoric material handling is essential before use.

Tris(2-methylpentyl)alumane must be stored under inert atmosphere in tightly sealed containers to prevent contact with air and moisture. Storage areas should be cool, dry, and well-ventilated, away from heat sources and incompatible materials such as water, alcohols, and oxidizing agents. Containers should be made of compatible materials and properly labeled. The storage facility must have appropriate fire suppression systems and emergency response procedures. Regular inspection of containers for leaks or deterioration is essential for safe storage.

Skin contact with tris(2-methylpentyl)alumane requires immediate removal of contaminated clothing and flushing the affected area with large amounts of water for at least 15 minutes. For eye contact, rinse immediately with water and seek medical attention. If inhaled, move the person to fresh air and provide respiratory support if needed. Do not use water on spills as this may cause violent reactions. In case of fire, use dry sand or appropriate dry chemical extinguishing agents. Seek immediate medical attention for all exposures.

Tris(2-methylpentyl)alumane disposal must be conducted by licensed hazardous waste disposal companies following local and European waste regulations. The compound cannot be disposed of through normal waste streams due to its pyrophoric nature. Small quantities may be carefully quenched with appropriate alcohols under controlled conditions by trained personnel, but this should only be done following established safety protocols. All disposal activities must comply with ADR transport regulations and waste classification requirements. Proper documentation and waste tracking are mandatory.

Tris(2-methylpentyl)alumane is classified under ADR Class 4.2 (substances liable to spontaneous combustion) with Packing Group I, indicating high danger level. Transportation requires specialized packaging meeting UN specification standards and must be conducted by carriers certified for dangerous goods. Vehicles must display appropriate hazard placards and carry emergency response information. The substance must be protected from air and moisture during transport, and drivers must be trained in dangerous goods handling. All transport documentation must comply with ADR requirements.

Tris(2-methylpentyl)alumane is subject to various European chemical regulations including REACH registration requirements for commercial use. While not currently listed as a Substance of Very High Concern (SVHC), it must comply with CLP regulation for classification and labeling. The compound falls under dangerous goods transportation regulations (ADR) due to its pyrophoric properties. Users must maintain safety data sheets and ensure proper risk assessments are conducted. Industrial users may need to comply with additional workplace safety directives and environmental regulations.

Tris(2-methylpentyl)alumane is available through OYSI, a specialized European distributor of technical chemicals with expertise in handling dangerous and sensitive materials. OYSI provides proper packaging, documentation, and regulatory compliance support for this pyrophoric compound. As a technical specialty chemical, it requires careful sourcing from qualified suppliers who can ensure product quality, safety standards, and regulatory compliance. Contact OYSI for availability, technical specifications, and pricing information for your specific application requirements in Europe.