The BZ reaction
"Oxidation of an organic substrate by bromate in an acidic solution in the presence of a redox catalyst."
The Belousov-Zhabotinsky (BZ) reaction is a chemical process that can show temporal oscillatory behavior or spatio-temporal structures as propagating waves, using a `bromate' (e.g., sodium bromate), an acid (e.g., sulfuric acid), a one electron redox catalyst/indicator (e.g., ferroin), and an organic component (e.g., malonic acid).
A nice 13 minute documentary on the BZ reaction and its history (on Youtube):
Created as a student projects in Joe Alia's Physical Chemistry 2 at the University of Minnesota at Morris in 2012. Produced by Matt Lovander (chemistry major) , Lewis Owen (CS major), and Alex Weber (physics major); narration by Professor James Togeas (quote from Matt Lovander: "we thought he would provide a smooth tempoed delivery of our script"). Matt Lovander went on to graduate school in Analytical Electrochemistry at the University of Iowa.
Some information about the BZ reaction:
Wikipedia: Belousov–Zhabotinsky reaction
Experimenting with the BZ reaction
Web site designed for children to explore chemical oscillating systems.
Nonlinear Chemical Dynamics
John Pojman's website about the book Introduction to Nonlinear Chemical Dynamics - Oscillations, Waves, Pattern, and Chaos by I. Epstein and J. Pojman. It contains a nice introduction to the history of chemical oscillations, recipes for various experiment, and a bibliography.
The Phenomenology of the Belousov-Zhabotinsky Reaction
A description of the BZ-reaction on Peter Ruoff's web site about oscillatory and excitable systems.
Oscillating Chemical Reactions.
Website of the 'Internet Differential Equations Activities' with History of Oscillating Chemical Reactions, BZ reaction, Lotka-Volterra Model, Brusselator, and Oregonator.