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Rate constants for the gas-phase reactions of OH radicals with β-dimethylstyrene and acetone. Mechanism of ββdimethylstyrene NOx – air photooxidation

✍ Scribed by C. Chiorboli; C. A. Bignozzi; A. Maldotti; P. F. Giardini; A. Rossi; V. Carassiti

Publisher
John Wiley and Sons
Year
1983
Tongue
English
Weight
360 KB
Volume
15
Category
Article
ISSN
0538-8066

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✦ Synopsis

The rate constants of gas-phase reactions of the hydroxyl radical with 0-dimethylstyrene and acetone have been determined by a relative method at 298 K. The values obtained are P-dimethylstyrene (3.3 f 0.5) X lo-" cm3/molecule-s and acetone (6.6 f 0.9) X cm3/ molecule-s. A simplified kinetic treatment of the experimental data shows that 0-dimethylstyrene is stoichiometrically converted to benzaldehyde and acetone. In the photooxidation study of benzaldehyde, carbon dioxide was the only detected product. The ratio between carbon dioxide produced and benzaldehyde reacted was 2 1.

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