NEW FEATURES OF STIRRING SENSITIVITIES OF THE BELOUSOV-ZHABOTINSKII REACTION

The sensitivity to stirring shown by the oscillatory Belousov-Zhabotinskii (BZ) reaction when carried out in batch mode has been experimentally examined. Different series of experiments were designed in order to test the influence of both the flow rate of a deaerating agent and the reactant initial concentrations on the observed stirring susceptibility. In addition, distinctive stirring effects associated with the different phases of the oscillatory reaction were analyzed. The experimental results indicate that stirring effects strongly depens on the initial concentrations of the BZ mixture and on the detailed chemical dynamics inherent in each phase of the reaction.