COMPLEX NONLINEAR BEHAVIOR IN THE BROMATE–2-AMINOPHENOL REACTION
7
and the oxidation products of 2-AP. Preliminary mech-
anistic studies suggest that pyrocatechol could be the
substance. Since this newly formed organic substrate,
presumably pyrocatechol, is also subjected to the con-
tinuous consumption through reactions with acidic bro-
mate, whether this intermediate substance can be built
up in the system (i.e., its formation from 2-AP over-
whelms its subsequent consumption) will be critical
in the development of the second suboscillator as well
as its competition with the bromate–2-AP oscillator. A
decrease in the induction period of the potential excur-
sion would cause the rapid disappearance of the second
set, whereas an increase would result in the overlap of
the two sets. This may indicate that the accumulation
of the intermediate pyrocatechol needs to reach a cer-
tain level prior to the excursion to exhibit sequential
behavior.
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International Journal of Chemical Kinetics DOI 10.1002/kin.21053