Ethoxy(diethyl)alumane

Ethoxy(diethyl)alumane is an organoaluminum compound with the molecular formula C6H15AlO and CAS number 1586-92-1. This chemical features an aluminum atom bonded to two ethyl groups and one ethoxy group, making it a trisubstituted aluminum compound with a molecular weight of 130.16 g/mol. It belongs to the family of alkylaluminum compounds commonly used in industrial applications requiring strong reducing agents or catalytic systems.

Ethoxy(diethyl)alumane is typically a colorless to pale yellow liquid at room temperature with high reactivity toward moisture and oxygen. The compound exhibits high air sensitivity and tends to spontaneously ignite when exposed to air, which explains its ADR classification as Class 4.2 (spontaneously combustible substances). It is incompatible with water and alcohols, reacting vigorously to produce flammable gases and aluminum hydroxide precipitates.

Ethoxy(diethyl)alumane is primarily used as a catalyst component in polymerization reactions, particularly in the production of polyolefins and other synthetic polymers. It serves as a co-catalyst in Ziegler-Natta catalytic systems and as a reducing agent in organic synthesis. The compound is also utilized in chemical vapor deposition processes for producing aluminum-containing thin films and in specialized applications requiring controlled aluminum alkyl reactivity.

Ethoxy(diethyl)alumane must be handled under inert atmosphere conditions using appropriate personal protective equipment including 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 and moisture. Due to its spontaneous combustibility (ADR Class 4.2), workers must use specialized handling techniques including inert gas blanketing and dry, oxygen-free solvents during transfers and reactions.

Ethoxy(diethyl)alumane must be stored under inert atmosphere in tightly sealed, dry containers away from heat sources, sparks, and open flames. Storage areas should be cool, well-ventilated, and equipped with appropriate fire suppression systems suitable for pyrophoric materials. The compound should be kept away from water, alcohols, and other protic substances that can cause violent reactions. Storage containers must be compatible with organoaluminum compounds and properly labeled.

Immediate action is required for any contact with ethoxy(diethyl)alumane due to its highly reactive nature. For skin contact, remove contaminated clothing and flush affected areas with mineral oil or compatible hydrocarbon solvent, never water. In case of eye contact, irrigate immediately with compatible solvent and seek medical attention. If inhaled, move to fresh air immediately. For ingestion, do not induce vomiting and seek immediate medical care while providing safety data sheet information to medical personnel.

Ethoxy(diethyl)alumane disposal must be performed by licensed hazardous waste contractors following local and European waste regulations. The compound cannot be disposed of through regular waste streams due to its pyrophoric nature. Disposal typically involves controlled reaction with compatible alcohols or careful incineration in specialized facilities equipped to handle spontaneously combustible materials. Empty containers require special decontamination procedures before disposal as hazardous waste.

Ethoxy(diethyl)alumane is classified under ADR as Class 4.2 (Spontaneously Combustible Substances), Packing Group I, indicating high transport risk. Transportation requires specialized packaging designed for pyrophoric liquids, proper labeling with Class 4.2 hazard labels, and compliance with dangerous goods regulations. Carriers must be trained in handling spontaneously combustible materials, and transport vehicles must meet specific safety requirements including appropriate fire suppression capabilities.

Ethoxy(diethyl)alumane is subject to REACH regulation requirements for registration, evaluation, and authorization within the European Union. While not currently listed as a Substance of Very High Concern (SVHC), it must comply with CLP regulation for classification, labeling, and packaging. Industrial users must follow workplace safety regulations for handling pyrophoric substances and may need special permits or notifications depending on quantities used and local regulatory requirements.

Ethoxy(diethyl)alumane is available through OYSI, a specialized European distributor of technical chemicals serving industrial customers across Europe. As a technical-grade organoaluminum compound requiring specialized handling and storage, it is typically supplied to qualified industrial users with appropriate safety infrastructure. OYSI provides comprehensive technical support, safety documentation, and regulatory compliance assistance to ensure proper handling and application of this reactive chemical compound.