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Relative rate constants for the reactions of hydroxyl radicals and chlorine atoms with a series of aliphatic alcohols

✍ Scribed by Hai Wu; Yujing Mu; Xiaoshan Zhang; Guibin Jiang

Publisher
John Wiley and Sons
Year
2002
Tongue
English
Weight
107 KB
Volume
35
Category
Article
ISSN
0538-8066

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✦ Synopsis

Abstract

Rate constants for the gas‐phase reactions of hydroxyl radicals and chlorine atoms with a series of alcohols have been determined by using the relative method. The experiments were performed at 295 ± 2 K and at 1 atmospheric pressure. The obtained values of the rate constants in units of 10^−12^ cm^3^ molecule^−1^ s^−1^ are as follows:

Alcohol Rate Constants for OH with Rate Constants for Cl with
Propane Cyclohexane Propane
Ethyl alcohol 3.40 ± 0.25 –
n‐Propyl alcohol 5.47 ± 0.44 –
Isopropyl alcohol 5.31 ± 0.39 –
n‐Butyl alcohol 8.66 ± 0.66 –
Isobutyl alcohol 9.08 ± 0.35 9.59 ± 0.45
tert‐Butyl alcohol 1.11 ± 0.07 –
n‐Pentyl alcohol 12.2 ± 1.0 12.4 ± 0.5
Isopentyl alcohol 13.8 ± 0.5 13.2 ± 1.1

The above relative rate constants are based on the values (in units of 10^−12^ cm^3^ molecule^−1^ s^−1^) of k(OH + propane) = 1.08, k(OH + cyclohexane) = 7.22, k(Cl + propane) = 131 and k(Cl + cyclohexane) = 307. The results are compared with previous determinations. © 2002 Wiley Periodicals, Inc. Int J Chem Kinet 35: 81–87, 2003

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