A shock tube study of the reaction of H atoms with SiCl4

Abstract

The reaction of H atoms with SiCl4 was studied behind reflected shock waves at temperatures between 1530 K and 1730 K and pressures around 1.5 bar by applying atomic resonance absorption spectroscopy (ARAS) for time resolved measurements of H atoms at the Lα-line. The thermal decomposition of a few ppm ethyl iodide (C2H5l) was used as a H-atom source. In the presence of a high excess of the molecular reactant SiCl4 a slow consumption of H was observed, which follows a pseudo-first-order rate law. Rate coefficient for the consumption of H by the reaction: was determined to be: © 1997 John Wiley & Sons, Inc. Int J Chem Kinet 29: 469–472, 1997.