Thermal decomposition of vinyl fluoride: A combined time of flight mass spectrometry/laser schlieren densitometry shock tube study

Binod Giri, H. Xu, R. Sivaramakrishnan, J. H. Kiefer, R. S. Tranter*

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

The thermal decomposition of vinyl fluoride was investigated at pressures 75-1370 Torr and high temperatures 1500-2300 K in shock tubes using two different independent detection techniques: time of flight mass spectrometry and laser schlieren densitometry. The measured rate coefficients show a strong fall off from the high pressure limiting rate constant (k) and are found to be in excellent agreement for the two techniques, within an experimental uncertainty of ±30%. A multichannel RRKM calculation based on 1,2 and 1,1 elimination of HF from vinyl fluoride was performed. Good agreement between the theory and the experimental data was obtained with a branching ratio of 0.5 which is in agreement with the estimated difference in barrier height, 1.5 kcal/mol, for the 1,2 and 1,1 elimination paths that were obtained from transition state theory calculations. The RRKM calculations could also reproduce the experimental data of Simmie et al. (J. Phys. Chem. 70, 74, 992) which are close to the calculated k.

Original languageEnglish (US)
Title of host publication5th US Combustion Meeting 2007
PublisherCombustion Institute
Pages1089-1096
Number of pages8
ISBN (Electronic)9781604238112
StatePublished - Jan 1 2007
Event5th US Combustion Meeting 2007 - San Diego, United States
Duration: Mar 25 2007Mar 28 2007

Publication series

Name5th US Combustion Meeting 2007
Volume2

Other

Other5th US Combustion Meeting 2007
CountryUnited States
CitySan Diego
Period03/25/0703/28/07

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Physical and Theoretical Chemistry
  • Mechanical Engineering

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