Determination of radicals recombination rate constants

被引：1

作者：

Trupin, V ^{[1
]}

Frongillo, Y ^{[1
]}

Baldacchino, G ^{[1
]}

Le Parc, D ^{[1
]}

Hickel, B ^{[1
]}

机构：

[1] CEA, DSM,DRECAM, SCM,Lab Radiolyse, CNRS,URA 331, F-91191 Gif Sur Yvette, France

来源：

JOURNAL DE CHIMIE PHYSIQUE ET DE PHYSICO-CHIMIE BIOLOGIQUE | 1999年 / 96卷 / 01期

关键词：

water radiolysis; alkaline pH; hydroxyl radical; rate constant;

D O I：

10.1051/jcp:1999107

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

Hydrogen peroxide, in the case of water radiolysis process, is mainly formed by reaction : (1)OH + OH --> H2O2. A competition exists at alkaline pH between (1) and the reactions : (3)OH + O- --> HO2- and (4) O- + O- --> O-2(2-). The rate constants of the two last reactions are not well known. In order to measure more precisely these rate constants, we use an experimental method of competition completed by a simulation of the kinetics. We have determined : k((3)) = 10(9) M-1 s(-1) and k((4))= 10(8) M-1 s(-1).

引用

页码：30 / 34

页数：5

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