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Mechanistic details of the Belousov–Zhabotinsky oscillations IV. Sensitivity analysis
Author(s) -
Edelson David
Publication year - 1981
Publication title -
international journal of chemical kinetics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.341
H-Index - 68
eISSN - 1097-4601
pISSN - 0538-8066
DOI - 10.1002/kin.550131108
Subject(s) - malonic acid , chemistry , mechanism (biology) , halogenation , period (music) , belousov–zhabotinsky reaction , sensitivity (control systems) , organic chemistry , quantum mechanics , physics , electronic engineering , acoustics , engineering
Abstract The sensitivity of the period of the Belousov–Zhabotinsky oscillations to the rate constants and initial conditions of our previously proposed mechanism is computed by the technique recently developed for this purpose and shown to be valid in our analysis of the Oregonator. The principal rate‐controlling steps for the determination of the period are found to be the enolization and bromination of malonic acid. Dependence of the period on initial conditions qualitatively agrees with available experimental data, except for the hydrogen ion, where a large discrepancy exists. It is suggested that this may be due to deficiencies in the organic reactions in the mechanism, or to a hydrogen‐ion catalyzed bromination mechanism for malonic acid. Other components of the mechanism, which participate in characterizing the period and amplitude of the oscillations, are discussed.