Kinetics of flame inhibition by sodium
- 1 January 1982
- 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. 78 (9) , 2843-2850
- https://doi.org/10.1039/f19827802843
Abstract
When sodium is added at mole fractions of ca. 10–4 to fuel-rich premixed hydrogen/oxygen/nitrogen flames of temperature T between 1800 and 2200 K, accelerated recombination of excess hydrogen atoms and hydroxy radicals is observed. The effect is quantitatively interpreted in terms of the reactions NaOH + H [graphic omitted] Na + H2O, (1), Na + OH + M [graphic omitted] NaOH + M. (2) Rate coefficients are as follows: log10(k1/cm3 molecule–1 s–1)=– 10.75 ± 0.5 – 430 T–1, log10(k–1/cm3 molecule–1 s–1)=– 9.39 ± 0.5 – 9500 T–1, log10(k2/cm6 molecule–2 s–1)=– 26.30 ± 0.4 – log10T, log10(k–2/cm3 molecule–1 s–1)=– 2.60 ± 0.4 – log10T– 17 100 T–1.Keywords
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