The Spectrophotometric Study of Belousov-Zhabotinsky Reaction with Mn(Ⅱ)/Mn(Ⅲ) Redox Couple

摘要

The results obtained by spectrophotometric study of Belousov-Zhabotinsky (BZ) system mill be reported. The components of studied BZ system were: organic substrate-malonic acid, oxidant agent-sodium bromate, monoelectronic redox couple-Mn(Ⅱ)/Mn(Ⅲ) and acidic medium-sulphuric acid.. The mentioned BZ system was experimenlaly studied on a range of temperatures between 10,1 / 69,7℃. We studied the influence of temperature on the system parameters (induction period, period of the second oscillation, number, duration and average frequency of the oscillations). The experimental results will be comparatively discussed with those obtained for the BZ system with Ce(Ⅲ)/Ce(Ⅳ) redoz couple in the same conditions concerning the concentrations and the temperature.