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Rate coefficients for the gas-phase reaction of NO3 radicals with selected dihydroxybenzenes

✍ Scribed by R. I. Olariu; I. Bejan; I. Barnes; B. Klotz; K. H. Becker; K. Wirtz

Publisher
John Wiley and Sons
Year
2004
Tongue
English
Weight
121 KB
Volume
36
Category
Article
ISSN
0538-8066

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✦ Synopsis

Abstract

Using a relative kinetic technique, rate coefficients have been determined at (298 ± 2) K and atmospheric pressure for the gas‐phase reactions of the NO~3~ radical with three vicinal dihydroxy aromatic compounds. The experiments were carried out in a 1080‐l quartz glass reactor at the Bergische Universität Wuppertal and in the European Photoreactor (EUPHORE), Valencia, Spain. The rate coefficients obtained (in units of cm^3^ molecule^−1^ s^−1^) using 2,3‐dimethyl‐2‐butene as the reference hydrocarbon were k~NO3~(1,2‐dihydroxybenzene) = (9.8 ± 5.0) × 10^−11^, k~NO3~(1,2‐dihydroxy‐3‐methylbenzene) = (17.2 ± 5.6) × 10^−11^, and k~NO3~ (1,2‐ dihydroxy‐4‐methylbenzene) = (14.7 ± 6.5) × 10^−11^. This study represents the first kinetic investigation of the reactions of the NO~3~ radical with dihydroxybenzenes. © 2004 Wiley Periodicals, Inc. Int J Chem Kinet 36: 577–583, 2004

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