I. Valent et L. Adamcikova, IRREGULAR OSCILLATIONS IN A BROMATE-THIOCYANATE BATCH SYSTEM UNDER CONSTANT NITROGEN GAS-FLOW, Journal of physical chemistry, 98(16), 1994, pp. 4304-4306
The reaction of bromate with thiocyanate in dilute perchloric acid was
studied potentiometrically. Experiments were carried out in a batch r
eactor (without feedstreams of the reactants) at a tenfold excess of b
romate. Volatile compounds were permanently removed from the reaction
solution by nitrogen gas bubbling at a constant flow rate. After the f
irst large reproducible maximum, irregular oscillations appear in the
time dependence of the redox. potential. An irregular evolution of gas
products (probably Br-2) from the reactor also can be observed. The s
ystem is very sensitive to initial conditions as well as perturbations
.