Simple KBrO3, H2SO4 batch oscillator.

KBrO(3) and H(2)SO(4) produce an oscillating system in batch when the proper combination of substrate concentrations, stirring rates, and temperatures is used. Bromide present as an impurity in KBrO(3) also takes part in the reaction. In many Belousov-Zhabotinsky (BZ) systems the above substrates are used and mixed with only an organic substance or with an organic substance and a catalyst, and the simple bromate oscillator cooperates with an organic substance, a catalyst, or both.

The effect of oxygen on time-dependent bifurcations in the Belousov-Zhabotinsky oscillating chemical reaction in a batch.

We have studied the effect of oxygen on the time-dependent bifurcations of transient oscillations in the Belousov-Zhabotinsky oscillating chemical reaction in a closed system. Experiments show that oscillations disappear through different bifurcations depending on the oxygen concentration in gas phase above the reaction solution. Oscillations disappear through the time-delayed Hopf bifurcation at low oxygen concentrations, whereas at high oxygen concentrations they disappear through the time-dependent SNIPER (saddle-node infinite period) bifurcation.