Interpretation of collisional ionization rates in flames
- 1 January 1972
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in Journal of the Chemical Society, Faraday Transactions 1: Physical Chemistry in Condensed Phases
- Vol. 68, 661-669
- https://doi.org/10.1039/f19726800661
Abstract
This paper discusses semi-quantitatively the ionization process, A + M*→ A++ e–+ M*′, where A is an atom and M* and M*′ are differently excited states of a molecule. This process is particularly relevant to the discussion of the collisional ionization rates in flame systems, and estimates of the cross-sections for such processes together with a correct treatment of the number of states involved can readily account for the anomalously high cross-sections for such processes previously inferred from ionization rate constants. The discussion raises other related problems which suggest that a complete understanding of the process will not be readily obtained until more complex experiments correlating flame composition, ionization rates, electron densities and temperature variations are performed.Keywords
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