Abstract
It has been found that nitric oxide is an effective homogeneous catalyst for the recombination of atomic hydrogen and hydroxyl radicals in fuel-rich flames of hydrogen, oxygen and nitrogen at atmospheric pressure. The results are consistent with the mechanism H + NO +
M
⇌ HNO +
M
, HNO + H → H
2
+ NO (
k
4
), HNO + HO → H
2
O + NO or H
2
+ NO
2
(
k
5
), and the following values for
k
4
and
k
5
are obtained:
k
4
= (1·0 ± 0·5) x 10
-11
cm
3
molecule
-1
s
-1
,
k
5
= (1·5 ±0·5) x 10
-10
cm
3
molecule
-1
s
-1
, with no significant temperature effect from 1600 to 2000 °K. Alternative mechanisms are discussed.
Reference3 articles.
1. THE ABSORPTION SPECTRA OF HNO AND DNO
2. Bulewicz E. M. Dem erdache A. & Sugden T. M. 1962 Sym posium on the chemistry of the upper and lower atmosphere ( Publishers Inc. (1962).
3. Bulewicz E. M. Jam es C. G. & Sugden T. M. 1956 StanfordResearch Institute) p. 89. New Y ork: Interscience
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