THE OSCILLATING REACTION OF HYDROGEN-PEROXIDE AND IODATE WITH BUTANONE AS SUBSTRATE

The system iodate-peroxide-manganese(II)-butanone is a member of the B riggs-Rauscher set of oscillators. The stoichiometry and variation of the oscillation period with concentration for each component is studie d under batch conditions. The system is simulated using the skeleton m echanism of earlier workers and reproduces the observed variation in o scillation period. Examination of the roles of the reaction steps show s that there are significant differences from those found using maloni c acid. Iodine is stored during the low iodide regime and utilized dur ing the high iodide regime, and different overall reactions occur duri ng the two regimes. (C) 1994 John Wiley & Sons, Inc.