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The rate coefficient for the reaction of O(3P) with CH3OOH at 297 K

✍ Scribed by Ghanshyam L. Vaghjiani; A. R. Ravishankara

Publisher: John Wiley and Sons
Year: 1990
Tongue: English
Weight: 489 KB
Volume: 22
Category: Article
ISSN: 0538-8066
DOI: 10.1002/kin.550220404

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✦ Synopsis

The absolute second-order rate coefficient for the reaction, O(3P) + CH300H + products, was measured to be ki = (1.06 ? 0.26) x cm3 molec-' s-l at 297 K, where the quoted error is 2 a including precision and estimated systematic errors. The possible presence of (CH3CHp),0 in our sample of CH,OOH leads to a large error in k l which reflects the relatively large uncertainty indicated. O(3P) was generated in excess CH300H by photolyzing a small amount of O3 a t 532 nm, where CH300H does not photolyze. The rate of removal of O?P) in the experiments was monitored by resonance fluorescence detection. The increased reactivity of O("P) with CH300H relative to H202 is interpreted as due to H abstraction from the CH3 group.

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