Trihexylalumane

Trihexylalumane is an organoaluminum compound with the molecular formula C18H39Al and CAS number 1116-73-0. This chemical consists of an aluminum atom bonded to three hexyl groups, creating a highly reactive organometallic species. With a molecular weight of 282.5 g/mol, it belongs to the class of trialkylaluminum compounds that are widely used in industrial chemistry and catalysis applications.

Trihexylalumane 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. It is soluble in hydrocarbon solvents and ethers but must be handled under inert atmosphere conditions due to its pyrophoric nature and tendency to spontaneously ignite upon contact with air.

Trihexylalumane is primarily used as a catalyst or co-catalyst in polymerization processes, particularly in the production of polyolefins. It serves as an alkylating agent in organic synthesis and as a reducing agent in various chemical reactions. The compound is also employed in the preparation of other organoaluminum compounds and finds applications in specialized industrial processes requiring strong Lewis acid catalysts.

Trihexylalumane must be handled under strict inert atmosphere conditions using nitrogen or argon gas. Essential protective equipment includes chemical-resistant gloves, safety goggles, and flame-resistant clothing. Work should be conducted in well-ventilated areas or under fume hoods, away from ignition sources. All handling operations require trained personnel familiar with pyrophoric materials, as the compound can spontaneously ignite upon air exposure.

Trihexylalumane must be stored under inert gas atmosphere in tightly sealed, dry containers to prevent contact with air and moisture. Storage areas should be cool, well-ventilated, and equipped with fire suppression systems suitable for metal fires. The compound is incompatible with water, alcohols, acids, and oxidizing agents. Containers should be properly labeled and stored away from heat sources and ignition points.

Skin contact with trihexylalumane requires immediate removal of contaminated clothing and flushing the affected area with large amounts of water, followed by medical attention. For eye contact, rinse immediately with water for at least 15 minutes and seek medical care. If inhaled, move the person to fresh air and provide oxygen if breathing is difficult. Never use water on spilled material due to violent reaction risk.

Trihexylalumane disposal must follow local and national hazardous waste regulations due to its pyrophoric nature. The compound should be carefully quenched using appropriate methods under controlled conditions by trained professionals. Disposal typically involves controlled destruction at authorized facilities equipped to handle reactive organometallic compounds. Contact specialized waste management companies experienced with pyrophoric materials for safe disposal procedures.

Trihexylalumane is classified as ADR Class 4.2 (spontaneously combustible substances), Packing Group I, indicating high danger. Transportation requires specialized packaging designed for pyrophoric materials, with proper labeling and documentation. Shipments must comply with dangerous goods regulations, use appropriate packaging instructions, and be handled by trained personnel. Special precautions include protection from moisture and proper emergency response procedures during transit.

Trihexylalumane is subject to various chemical safety regulations including REACH registration requirements in Europe. While not classified as a Substance of Very High Concern (SVHC), it must comply with CLP regulation for classification, labeling, and packaging. Industrial users must follow occupational safety standards and may require special permits for handling pyrophoric materials. Export/import may be subject to additional regulatory requirements.

Trihexylalumane is available through OYSI, a leading European distributor of specialty chemicals and organometallic compounds. OYSI provides high-quality trihexylalumane with proper packaging and documentation for safe handling and transport. As a specialized chemical requiring expert handling, purchasing from experienced distributors like OYSI ensures compliance with safety regulations and provides access to technical support for safe use and application guidance.