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A dual-frequency Belousov Zhabotinskii oscillating reaction with ethyl acetoacetate as organic substrate

✍ Scribed by Leo F. Salter; John G. Sheppard

Publisher
John Wiley and Sons
Year
1982
Tongue
English
Weight
323 KB
Volume
14
Category
Article
ISSN
0538-8066

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✦ Synopsis

Abstract

The experimental behavior of the cerium‐ and manganese‐catalyzed Belousov Zhabotinskii oscillating reaction with ethyl acetoacetate as organic substrate has been investigated. Under certain conditions the system displays two types of temporal oscillations. Damped highfrequency oscillations appear immediately after the addition of potassium bromate solution to complete the reaction mixture. These high‐frequency oscillations may be regarded as being superimposed on an induction period of the type found in the reaction using malonic acid. After the induction period, low‐frequency oscillations of the normal type are obtained. Both the high‐frequency and the low‐frequency oscillations can be monitored with a platinum redox or with a bromide specific ion electrode.

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