Autocatalysis and self-inhibition:: Coupled kinetic phenomena in the chlorite-tetrathionate reaction

被引:36
作者
Horváth, AK
Nagypál, I
Peintler, G
Epstein, IR
机构
[1] Univ Szeged, Dept Phys Chem, H-6701 Szeged, Hungary
[2] Brandeis Univ, Dept Chem, Waltham, MA 02454 USA
[3] Brandeis Univ, Volen Ctr Complex Syst, Waltham, MA 02454 USA
关键词
D O I
10.1021/ja048982l
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
The initial rate of formation of chlorine dioxide in the chlorite-tetrathionate reaction changes in an unusual fashion. The formal kinetic order of both reactants varies over a very wide range. Moreover, chlorite ion behaves not just as a simple reactant, but also as a self-inhibitor. A five-step scheme, derived from an eight-step mechanism, is proposed in which the autocatalytic formation of HOCl plays a central role in accounting for this kinetic behavior. Copyright © 2003 American Chemical Society.
引用
收藏
页码:6246 / 6247
页数:2
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