Chloro(diethyl)alumane

Chloro(diethyl)alumane is an organoaluminum compound with the molecular formula C4H10AlCl and CAS number 96-10-6. This chemical features an aluminum atom bonded to two ethyl groups and one chlorine atom, making it part of the alkylaluminum family. With a molecular weight of 120.56 g/mol, it serves as an important intermediate in organometallic chemistry and various industrial processes requiring aluminum-carbon bonds.

Chloro(diethyl)alumane is typically a colorless to pale yellow liquid at room temperature with high reactivity toward moisture and air. As an organoaluminum compound, it exhibits pyrophoric properties and reacts violently with water, alcohols, and other protic solvents. The compound is generally soluble in non-polar organic solvents like hydrocarbons and ethers but must be handled under inert atmosphere conditions due to its air and moisture sensitivity.

Chloro(diethyl)alumane is primarily used as a catalyst and co-catalyst in polymerization reactions, particularly in the production of polyolefins and other synthetic polymers. It serves as a reducing agent in organic synthesis and as an intermediate in the preparation of other organoaluminum compounds. The compound is also utilized in specialized chemical processes requiring controlled aluminum insertion reactions and in research applications involving organometallic chemistry.

Chloro(diethyl)alumane requires handling under strict inert atmosphere conditions using appropriate personal protective equipment including chemical-resistant gloves, safety goggles, and protective clothing. All work must be conducted in well-ventilated areas or under fume hoods, avoiding contact with moisture, air, and incompatible materials. Emergency equipment such as dry sand or specialized extinguishing agents should be readily available, and personnel must be trained in pyrophoric material handling procedures.

Chloro(diethyl)alumane must be stored under inert gas atmosphere (nitrogen or argon) in tightly sealed, dry containers away from moisture, heat sources, and incompatible materials. Storage areas should be cool, well-ventilated, and equipped with appropriate fire suppression systems suitable for pyrophoric materials. The compound should be kept separate from water, alcohols, acids, and oxidizing agents, with storage facilities meeting requirements for ADR Class 4.2 substances.

Chloro(diethyl)alumane contact requires immediate action due to its reactive nature. For skin contact, remove contaminated clothing and flush affected areas with large amounts of water while seeking immediate medical attention. In case of eye contact, rinse thoroughly with water for at least 15 minutes and obtain medical care. If inhaled, move the person to fresh air and provide respiratory support if needed. Never use water directly on spills due to violent reaction potential.

Chloro(diethyl)alumane disposal must be conducted by licensed hazardous waste management companies following strict regulatory protocols. The compound cannot be disposed of through normal waste streams due to its pyrophoric and reactive nature. Disposal typically involves careful neutralization under controlled conditions by trained professionals. All disposal activities must comply with local, national, and EU waste regulations, with proper documentation and tracking throughout the disposal process.

Chloro(diethyl)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 specifications, proper labeling, and documentation including transport emergency cards. Vehicles must be equipped with appropriate safety equipment, and drivers need ADR certification. The compound must be protected from moisture and temperature extremes during transport, with emergency procedures readily available.

Chloro(diethyl)alumane is subject to various European regulations including REACH registration requirements and CLP classification rules. While not currently listed as a Substance of Very High Concern (SVHC), it must comply with standard chemical safety protocols and workplace exposure limits. The compound falls under dangerous goods transportation regulations (ADR) and may be subject to additional restrictions depending on intended use and quantities handled by individual member states.

Chloro(diethyl)alumane is available through specialized chemical distributors in Europe, including OYSI, which supplies high-quality chemical products to industrial customers across the European market. Due to its specialized nature and regulatory requirements, procurement typically requires proper licensing, safety protocols, and technical expertise. Buyers should ensure suppliers provide appropriate documentation, safety data sheets, and comply with all relevant transportation and handling regulations for this pyrophoric substance.