A model for the ferroin-bromate-bromide-sulfuric acid system in a continuously stirred
(flow-through) tank reactor has been constructed by extending the Noyes-Field-Thompson
mechanism with the following composite processes: (a) ferroin-bromate, (b) ferroin-bromous
acid, (c) ferroin-hypobromous acid, (d) ferroin-bromine, (e) feriin-bromide, and (f)
ferriin-bromine. The calculated high amplitude oscillations and kinetic phase diagram
are in good accordance with the experiments reported earlier. By completing the scheme
with a reaction step accounting for the precipitation and dissolution of a ferroin-tribromide
salt, the batch oscillations found at high concentrations of reactants can also be
simulated.
