Briggs-Rauscher Mechanism: The Chemical Color Clock
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The reactions involved in the Briggs–Rauscher (BR) mechanism are the following:
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Contributed by: Housam Binous and Brian G. Higgins (April 2011)
Open content licensed under CC BY-NC-SA
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The members of the sequence are the compositions of , respectively. The concentration of is taken as a constant equal to . In the program, the symbols , K1, K2, …, and k1, k2, … are the different rate constants and constants appearing in the rate laws (see [1] for details).
In the program, X10, X20, …, X100 are the 10 concentrations of the various components in the feed stream of the open reactor. The reactor’s residence time equal to ; the Mathematica variable A is a constant equal to .
References
[1] P. De Kepper and I. R. Epstein, "A Mechanistic Study of Oscillations and Bistability in the Briggs–Rauscher Reaction," Journal of the American Chemical Society, 104(1), 1982 pp. 49–55.
[2] M. M. Thomas, "The Briggs–Rauscher Reaction: Chemistry Clock in Color," Mathematica in Education and Research, 11(1), 2006 pp. 129–137.
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