Stirring and premixing effects in the oscillatory chlorite–iodide reaction

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Abstract
The reaction between chlorite and iodide has been studied in a CSTR at different stirring rates with and without premixing of the input reagents. Most of the experiments have been conducted under oscillatory conditions. Three steady states are found in the premixing configuration. With the state of mixing as the bifurcation parameter, phase portraits are obtained showing the disappearance of oscillations through various types of bifurcation. The mixing dependence of the system’s dynamical behavior is discussed in terms of the elementary steps in a recently proposed mechanism. The significant enrichment in the dynamical behavior observed on varying the mixing requires revision of the mechanism.

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