Understanding the induction period of the Belousov-Zhabotinsky reaction

Journal of the Brazilian Chemical Society

Ariel Cadena¹  Néstor Pérez¹  Jesús A. Ágreda¹  Daniel Barragán¹ 

[1] ,Universidad Nacional de Colombia Departamento de Química Laboratorio de Calorimetría y Dinámica Química No-Lineal (451-217)Bogotá,Colombia

关键词: Induction period;    Belousov-Zhabotinsky reaction;    oscillating chemical reactions;   

DOI  :  10.1590/S0103-50532005000200014

来源: SciELO

【 摘 要 】

In this paper we present the dependence of the induction time of the Belousov-Zhabotinsky reaction (BZ) on the initial concentrations of malonic acid, bromate and cerium. The experimental results show that the induction time gets larger with bromate increasing and this behaviour does not agree with the mechanistic explanations based on the models proposed for the BZ reaction. We propose that a kinetic competition between the bromination of malonic acid and the oxidation of bromomalonic and malonic acids is a way to understand this behaviour. Model calculations using the GTF and MBM models support the propose explanation.

【 授权许可】

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