Metal alkyls and aluminoxanes are often highly reactive compounds. Many concentrated metal alkyls and aluminoxanes or their solutions are pyrophoric, i.e., they ignite spontaneously in contact with air. Many commercially available metal alkyls and aluminoxanes also react explosively with water, releasing flammable gases. Consequently, handling these compounds requires rigorous exclusion of air and moisture. They must be handled under a dry, inert atmosphere, e.g. nitrogen or argon. Water must be scrupulously removed from process equipment prior to putting it into metal alkyl service. Failure to do so may result in an explosion.

Zinc alkyls may undergo exothermic decomposition at elevated temperatures.

Relatively little is known about the toxicity of alkylboranes. Diborane, however, is quite toxic. Though alkylboranes do not appear to be as toxic as diborane, it is prudent to regard alkylboranes as toxic materials and to take measures to minimize exposure.

Metal alkyls and aluminoxanes have been handled safely on a commercial scale for many years despite their inherent hazards. Knowledge of proper handling techniques, carefully designed facilities, and thorough training of personnel using written procedures can overcome these hazards. Personnel who understand and give proper attention to these compounds will be able to handle them confidently and safely.

Material Safety Data Sheets (MSDS) for all commercial and developmental products can be downloaded from this website. For additional literature describing proper personal protective equipment, spill handling, unloading procedures and facility design, please contact us.