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

✍ Scribed by L. Catoire; D. Woiki; P. Roth

• Publisher: John Wiley and Sons
• Year: 1997
• Tongue: English
• Weight: 115 KB
• Volume: 29
• Category: Article
• ISSN: 0538-8066
• DOI: 10.1002/(sici)1097-4601(1997)29:6<469::aid-kin9>3.0.co;2-s

✦ Synopsis

The reaction of H atoms with SiCl 4 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 L ␣ -line. The thermal decomposition of a few ppm ethyl iodide (C 2 H 5 I) was used as a Hatom source. In the presence of a high excess of the molecular reactant SiCl 4 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: (R1) was determined to be:

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