Bis(2-methylpropyl)alumane

Bis(2-methylpropyl)alumane is an organoaluminum compound with the molecular formula C8H19Al and CAS number 1191-15-7. This chemical consists of an aluminum atom bonded to two 2-methylpropyl groups (isobutyl groups). With a molecular weight of 142.22 g/mol, it belongs to the class of organometallic compounds that are widely used in industrial applications requiring aluminum-carbon bonding capabilities.

Bis(2-methylpropyl)alumane is typically a liquid organometallic compound at room temperature. Like most organoaluminum compounds, it is highly reactive with moisture and oxygen, leading to spontaneous combustion in air. The compound is generally colorless to pale yellow and has a characteristic organometallic odor. It is soluble in non-polar organic solvents but reacts violently with water and alcohols.

Bis(2-methylpropyl)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 an alkylating agent in organic synthesis and as a reducing agent in various chemical processes. The compound is also utilized in the preparation of other organoaluminum compounds and as a precursor in aluminum deposition processes.

Bis(2-methylpropyl)alumane must be handled under strict inert atmosphere conditions using nitrogen or argon gas. Essential PPE includes chemical-resistant gloves, safety goggles, and protective clothing. Work should be conducted in well-ventilated areas or under fume hoods. The compound is pyrophoric, meaning it ignites spontaneously in air, so exposure to moisture and oxygen must be completely avoided during handling procedures.

Bis(2-methylpropyl)alumane must be stored under inert gas atmosphere in tightly sealed containers, preferably under nitrogen or argon. Storage areas should be cool, dry, and away from sources of ignition, heat, and moisture. The compound is incompatible with water, alcohols, acids, and oxidizing agents. Containers should be made of compatible materials and stored in fire-resistant cabinets designed for pyrophoric materials.

Bis(2-methylpropyl)alumane contact requires immediate action due to its reactive nature. For skin contact, remove contaminated clothing and flush with large amounts of water. For eye contact, rinse immediately with water for at least 15 minutes. If inhaled, move to fresh air immediately. Never use water directly on spills as this may cause ignition. Seek immediate medical attention for any exposure and inform medical personnel of the chemical's pyrophoric properties.

Bis(2-methylpropyl)alumane disposal requires specialized hazardous waste procedures due to its pyrophoric nature and ADR Class 4.2 classification. The compound must be carefully quenched using appropriate inert solvents under controlled conditions before disposal. Contact licensed hazardous waste disposal companies experienced with organometallic compounds. Never dispose of in regular waste streams or pour down drains due to fire and environmental hazards.

Bis(2-methylpropyl)alumane is classified as ADR Class 4.2 (substances liable to spontaneous combustion), Packing Group I, indicating high danger level. Transportation requires specialized packaging designed for pyrophoric materials, with proper labeling and documentation. Shipments must comply with dangerous goods regulations and be handled by trained personnel. The compound requires inert atmosphere during transport and specific emergency response procedures in case of incidents.

Bis(2-methylpropyl)alumane is subject to REACH regulation in Europe and must comply with CLP classification requirements. While not currently listed as a SVHC (Substance of Very High Concern), it falls under dangerous goods regulations due to its pyrophoric properties. Industrial users must maintain safety data sheets, implement risk management measures, and comply with workplace safety regulations for handling organometallic compounds.

Bis(2-methylpropyl)alumane is available through OYSI, a specialized European distributor of technical chemicals with expertise in organometallic compounds. OYSI provides this compound with proper documentation, safety data sheets, and technical support. As a professional chemical distributor, OYSI ensures compliance with European regulations and provides appropriate packaging for safe transportation and storage of this pyrophoric material to qualified industrial customers.