Temperature-triggered chemical oscillators. A peculiar temperature effect in perturbed uncatalyzed bromate-driven reactions
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文摘
Some uncatalyzed bromate oscillators with p-substituted phenol derivatives as the organic substrates when perturbed with chloride ions show a remarkable behavior, namely, a sudden transition, at a well-defined threshold temperature, from the non-oscillatory to the oscillatory state, and back. The high sensitivity of the reacting systems towards chloride ion perturbation and the conditions for the occurrence of the phenomenon are described.