The effect of light on the Bray-Liebhafsky oscillatory reaction was studied at 55 °C. It was found that both the induction time and period decreased with the increasing light intensity, and at a critical value of intensity, dependent on the initial concentration of the reactants, oscillation disappeared. The reaction scheme proposed by Schmitz was extended with a direct reaction of I2 with H2O2. By taking into account the latter reaction, the oscillations were numerically calculated and good agreements with the experimental data were found.
ASJC Scopus subject areas
- Physical and Theoretical Chemistry