Acoustic emission of the Briggs-Rauscher oscillatory reaction: effect of stirring

The acoustic emission method has been applied to the
investigation of the dependence of the oxygen release in the Briggs-Rauscher
oscillatory reaction on the rate of stirring. The oxygen distribution does not
increase toward a limiting value but achieves a maximum and decreases
afterwards. There exists a low stirring rate at which the release of oxygen from
the solution proceeds in the form of "fountains". This can be observed before
the disappearance of the iodine oscillations. The results obtained by the
acoustic emission method can be useful in the description of the unknown
mechanism of the Briggs-Rauscher reaction.