•OH reactions with aliphatic alcohols:: evaluation of kinetics by direct optical absorption measurement.: A pulse radiolysis study

被引：68

作者：

Alam, MS ^{[1
]}

Rao, BSM ^{[1
]}

Janata, E ^{[1
]}

机构：

[1] Hahn Meitner Inst Berlin GmbH, Bereich Solarenergieforsch, D-14109 Berlin, Germany

来源：

RADIATION PHYSICS AND CHEMISTRY | 2003年 / 67卷 / 06期

关键词：

aliphatic alcohol; hydroxyl radical; rate constant; UV absorption;

D O I：

10.1016/S0969-806X(03)00310-4

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The kinetics of the reactions of hydroxyl radicals with aliphatic alcohols in aqueous solution were studied using pulse radiolysis. Based on the optical absorption observed in the UV region, the rate constants for the reaction of hydroxyl radicals with methanol, ethanol, 2-propanol and tert-butyl alcohol were determined to be 9.0 x 10(8), 2.2 x 10(9), 2.0 x 10(9) and 6.2 x 10(8) dm(3) mol(-1) s(-1), respectively. The values obtained here by direct observation of the alcohol radicals basically confirm the values which were earlier determined indirectly by competition. (C) 2003 Elsevier Science Ltd. All rights reserved.

引用

页码：723 / 728

页数：6

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