Effect of Initial Reagent Concentrations on the Oscillatory Behavior of the BZ Reaction in a Batch Reactor

A detailed investigation on resorcinol as the Belousov-Zhabotinsky (BZ) oscillator in manganese(II) ion catalyzed reaction system with inorganic bromate (oxidant) and acetone (cosubstrate) was carried out in aqueous sulfuric acid medium (1.3 M). The aforesaid reagents were mixed with various concentrations to evolve the effective concentrations at which the reaction system exhibited better oscillations. The various oscillatory parameters such as time period (t(p)), induction period (t(in)), frequency (upsilon), amplitude (A), and number of oscillations (n) were derived, and the dependence of concentration of the reacting species on these oscillatory parameters was interpreted on the basis of the Field-Koros-Noyes mechanism. (c) 2009 Wiley Periodicals, Inc. Int J Chem Kinet 41: 650-657, 2009