Abstract
We examine the dynamical behavior of two chemical oscillators, bromate-iodide and chlorite-iodide, as well as the coupled system bromate-chlorite-iodide. Study of the period and amplitude of oscillation at the bifurcation points yields phase portraits for the uncoupled systems. These are combined to give insights into the nature of the (higher dimensional) coupled system, which exhibits a wide variety of dynamical phenomena, including multiple stationary states, birhythmicity and chaos. Analysis of the topology of the phase portraits and of the experimentally determined return map suggests that the coupled system may possess a Lorenz-type attractor.