ISSN:
1573-935X
Source:
Springer Online Journal Archives 1860-2000
Topics:
Chemistry and Pharmacology
Notes:
Abstract The concentration waves in the Belousov-Zhabotinskii reaction with the participation of the iron (II, III) complexes with 2,2′-dipyridine have been discussed, and the concentration region for their existence has been determined. The dependence of the parameters of the autonomous waves (their velocity, amplitude, length, and period) on the initial concentrations of the reactants has been established experimentally. It has been shown that the dependence of the period of the waves on the initial bromate concentration is described by the equation T(c)= 1.1 [NaBrO3]−2.1. The dependence of the velocity of the waves on the initial bromate concentration is accurately described by the equations v (mm/sec)=0.210[NaBrO3]1/2 and v (mm/sec)=0.205[NaBrO3]1/2, respectively, for waves with maximal and minimal lengths (periods). It has been concluded that pacemaker centers which generate waves with short periods (and lengths) appear under the influence of heterogeneities in the solution. The influence of heterogeneities on the parameters of the waves with minimal lengths makes them less suitable for the study of the concentration dependence of the parameters.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00945139
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