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Hazard Predictions

• Flammable: Reaction products may be flammable
• Generates gas: Reaction liberates gaseous products and may cause pressurization
• Generates heat: Exothermic reaction at ambient temperatures (releases heat)
• Toxic: Reaction products may be toxic

Metal hydrides, which are strong bases, may cause chlorosilanes to decompose, liberating toxic HX and flammable H2 gases (Centre Europ茅en des Silicones (CES), Safe Handling of Chlorosilanes, Chapter VIII, pg. 15. Found at http://www.silicones-safety.eu/files/Chlorosilanes Manual 22082003.pdf).

Lithium aluminum hydride reacts with chlorosilanes to produce toxic and flammable silane gas (Eggeman, T. 2001. Hydrides. In Kirk-Othmer Encyclopedia of Chemical Technology. John Wiley & Sons, Inc. (Online); Rittmeyer, P., U. Wietelmann. 2002. Hydrides. In Ullmann's Encyclopedia of Industrial Chemistry. Wiley-VCH Verlag GmbH & Co. KGaA. (Online)). Chlorogermanes may react similarly to form flammable gaseous germanes.

Lithium alkyls react with chlorosilanes to form alkylated silanes and lithium chloride (Gilman, H. and T .C. Wu, J. Am. Chem. Soc., 75 (1953) 3762).

Grignard reagents (alkyl magnesium halide compounds) react with tetrachlorosilane to form a mixture of chloroalkylsilanes (Salzer, A. 2010. Organometallic Compounds. Ullmann's Encyclopedia of Industrial Chemistry. (Online)).

Potential Gas Byproducts

• Hydrogen (H2)
• Hydrogen Halide (HX)
• Silanes
• Germanes
• Acid Fumes