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Rate constants for the reaction of ground-state oxygen atoms with methanol from 297 to 544 K

✍ Scribed by R. L. Failes; D. L. Singleton; G. Paraskevopoulos; R. S. Irwin

Publisher: John Wiley and Sons
Year: 1982
Tongue: English
Weight: 441 KB
Volume: 14
Category: Article
ISSN: 0538-8066
DOI: 10.1002/kin.550140405

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✦ Synopsis

T h e rate constant for the reaction of ground-state oxygen atoms with methanol has been determined between 297 and 544 K by a phase-shift technique using mercury photosensitized decomposition of N20 to generate oxygen atoms. T h e relative oxygen atom concentration was monitored by the chemiluminescence from the reaction of oxygen atoms with nitric oxide. T h e results are accommodated by the Arrhenius expression k l = (9.79 f 2.71) X 1012 exp[(-2267 f lll)/T]cm~/mol-s, where the indicated uncertainties are 95% confidence limits lor 10 degrees of freedom. As an incidental part of this work, the third-body efficiency of' CH:%OH relative to N20 for the reaction 0 + NO + M --NO2 + M ( M = CH:%OH) was determined to be 3.1 a t 298 K.

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