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Rate constants for the reactions of O3 and OH radicals with a series of alkynes

✍ Scribed by Roger Atkinson; Sara M. Aschmann

Publisher
John Wiley and Sons
Year
1984
Tongue
English
Weight
499 KB
Volume
16
Category
Article
ISSN
0538-8066

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✦ Synopsis

Rate constants for the reactions of 0, and OH radicals with acetylene, propyne, and 1-butyne have been determined at room temperature. The rate constants obtained a t 294 i 2 K for the reactions of 0, with acetylene, propyne, and 1-butyne were (7.8 -c 1.2) x lo-'' cm3/molecule . s, (1.43 2 0.15) x lo-'' cm3/molecule~ s, and (1.97 i 0.26) x lo-" cm3/molecule . s, respectively. The rate constants at 298 i 2 K and atmospheric pressure for the reactions with the OH radical, relative to a rate constant for the reaction of OH radicals with cyclohexane of 7.57 x lo-'' cm3/molecule . s, were determined to be (8.8 t 1.4) x cm3/molecule . s, (6.21 i 0.31) x 10 '' cm3/molecule . s, and (8.25 i 0.23) x lo-'' cm3/molecule s for acetylene, propyne, and I-butyne, respectively. These data are discussed and compared with the available literature rate constants.

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