Chloro-bis(2-methylpropyl)alumane

Chloro-bis(2-methylpropyl)alumane is an organoaluminum compound with the molecular formula C8H18AlCl and CAS number 1779-25-5. This chemical features an aluminum center bonded to a chlorine atom and two 2-methylpropyl groups (isobutyl groups). With a molecular weight of 176.66 g/mol, it belongs to the family of alkylaluminum compounds commonly used in organic synthesis and industrial processes requiring aluminum-carbon bonds.

Chloro-bis(2-methylpropyl)alumane is typically a liquid or low-melting solid at room temperature, characteristic of organoaluminum compounds. As an alkylaluminum derivative, it is highly reactive with moisture and oxygen, making it air and water-sensitive. The compound is generally colorless to pale yellow and has a distinctive organometallic odor. It is soluble in non-polar organic solvents such as hydrocarbons and ethers but reacts violently with protic solvents.

Chloro-bis(2-methylpropyl)alumane serves as a versatile reagent in organic synthesis, particularly as an alkylating agent and Lewis acid catalyst. It is commonly used in polymerization reactions, especially for olefin polymerization processes. The compound also finds applications in the synthesis of other organoaluminum compounds, as a cocatalyst in Ziegler-Natta polymerization systems, and in various organometallic transformations where aluminum-carbon bond formation is required.

Chloro-bis(2-methylpropyl)alumane requires handling under strict inert atmosphere conditions using dry nitrogen or argon. Essential personal protective equipment includes chemical-resistant gloves, safety goggles, and protective clothing. Work must be conducted in a well-ventilated fume hood or glove box to prevent exposure to moisture and air. Always use dry, flame-dried glassware and avoid contact with water, alcohols, or other protic substances which can cause violent reactions.

Chloro-bis(2-methylpropyl)alumane must be stored under inert atmosphere in tightly sealed containers, preferably under dry nitrogen or argon. Storage should occur in a cool, dry place away from sources of ignition, moisture, and incompatible materials such as water, alcohols, acids, and oxidizing agents. The compound should be kept in its original packaging with appropriate secondary containment and stored separately from other chemical classes to prevent dangerous reactions.

Immediate action is required for any contact with chloro-bis(2-methylpropyl)alumane. For skin contact, remove contaminated clothing and flush the affected area with large amounts of water for at least 15 minutes. In case of eye contact, rinse immediately with water for 15 minutes while holding eyelids open. If inhaled, move the person to fresh air immediately. Never use water directly on spilled material due to violent reaction potential. Seek immediate medical attention for all exposure incidents.

Chloro-bis(2-methylpropyl)alumane disposal requires careful neutralization under controlled conditions by trained professionals. The compound should never be poured down drains or disposed of with regular waste. Proper disposal involves slow addition to a suitable quenching agent under inert atmosphere, followed by treatment according to local hazardous waste regulations. Contact specialized chemical waste disposal companies familiar with organoaluminum compounds for safe collection and disposal in compliance with European waste legislation.

Chloro-bis(2-methylpropyl)alumane is classified under ADR Class 4.2 (substances liable to spontaneous combustion), Packing Group I, indicating high danger level. Transportation requires specialized packaging meeting UN specifications for pyrophoric materials. Vehicles must carry appropriate emergency equipment and documentation. Only trained personnel should handle the transport, ensuring protection from moisture and maintaining inert atmosphere during shipment. Proper hazard labels and shipping papers are mandatory for legal transport.

Chloro-bis(2-methylpropyl)alumane falls under various European chemical regulations including REACH registration requirements for manufacturers and importers. While not currently listed as a SVHC (Substance of Very High Concern), it must comply with CLP regulation for classification and labeling. The compound's pyrophoric nature subjects it to strict transport regulations under ADR. Users must maintain safety data sheets and ensure proper risk assessments are conducted before use in industrial applications.

Chloro-bis(2-methylpropyl)alumane is available through OYSI, a specialized European distributor of technical chemicals serving various industries across the continent. OYSI provides this organoaluminum compound with proper documentation, safety data sheets, and regulatory compliance support. As a professional chemical supplier, OYSI ensures appropriate packaging and handling procedures for safe delivery to qualified industrial users. Contact OYSI directly for availability, specifications, and purchasing information for your specific application requirements.