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The chemical kinetics and thermodynamics of sodium species in oxygen-rich hydrogen flamesResults are presented which, it is claimed, lead to a correction of previous misconceptions over the relative importance and kinetics of NaO2. It is shown that its rapid conversion to NaO and NaOH is such that it can severely perturb the NaOH/Na ratio and produce significant concentration overshoots over that predicted from the balance of the reaction of Na with H2O. This becomes increasingly the case in flames of large O2 concentrations and temperatures below 2500 K; and the corresponding large rate constants for the termolecular formation of the other alkali peroxides imply that similar considerations will be necessary for them. Depending on the rate constants for the exothermic conversions of MO2 to MO or MOH, the steady-state concentrations of MO2 could be more or less significant than for sodium. Owing to numerous reactions that produce these conversions, the MOH species will probably be the dominant species in all cases in oxygen-rich hydrogen or hydrocarbon flames, with MO concentrations at not greater than 1 percent of the bound metal.
Document ID
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
Hynes, A. J.
(California Univ. Santa Barbara, CA, United States)
Steinberg, M.
(California Univ. Santa Barbara, CA, United States)
Schofield, K.
(California, University Santa Barbara, CA, United States)
Date Acquired
August 12, 2013
Publication Date
March 15, 1984
Publication Information
Publication: Journal of Chemical Physics
Volume: 80
ISSN: 0021-9606
Subject Category
Inorganic And Physical Chemistry
Accession Number
Funding Number(s)
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