Dictionary of Chemistry [6th Ed.]

cerium changes its oxidation state

(Ce3+gives a magenta solution while

Ce4+gives a blue solution). The B–Z

reaction is an example of a chemical

*oscillating reaction – a reaction in

which there is a regular periodic

change in the concentration of one

or more reactants. The mechanism is

highly complicated, involving a large

number of steps. See brusselator.

B–Z reaction 90

b