Oscillating Chemical Reactions

Shiva Polefka


An investigation into the phenomena of oscillating chemical reactions, famously observed and documented by Belousov in the 1950's and Zhabotinsky in the 1960's, gives insight into non-linear dynamics in the field of chemistry. Chemical oscillations result from coupled reactions that cause changes in concentrations of key reagents through autocatalytic processes. Sample reactions, such as the reduction/oxidation of ferrous sulfate (dye) by ionic bromide and bromate, are investigated both mathematically and experimentally. Bulk oscillations in the color of sample solutions are observed, as well as non-kinetic chemical wave behaviour. Some basic computational modeling is attempted. Applications to bio-chemistry are briefly investigated, and some gaps in the current understanding of the phenomena in biological systems discovered. Finally, a short summary of the investigation, including observations and research, and some cool possibilities for future study, are presented.



[Chaotic Dynamical Systems Final Projects]

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