Original scientific paper

Cyclic Chronopotentiometry. Determination of Types and Rates of Second Order Chemical Reactions Following Electron Transfer

M. Vuković ; Electrochemistry Laboratory, Institute »Ruder Boskovic«, Zagreb, Croatia, Yugoslavia
V. Pravdić ; Electrochemistry Laboratory, Institute »Ruder Boskovic«, Zagreb, Croatia, Yugoslavia

Abstract

Cyclic chronopotentiometry, a convenient technique for studying
coupled chemical and electrochemical reaction mechanisms,
is extended to include determination of types and rates of second
order chemical reactions following electron transfer. The mathematical
treatment presented is derived on the basis of Feldberg's
method of digital simulation. Diagnostic curves are given for
kinetic and disproportionation reactions. The disproportionation
reaction of uranium(V) in carbonate solutions has been used for
an experimental test. The technique and the described method of
calculation of data allow determination of the rate coefficient of
a second order disproportionation reaction to within ± 2°/o of a
typical value of 10 1 mo1e·1 sec-1• The technique of cyclic chronopotentiometry
is applicable for second order rate coefficients
between 10-1 and 10s 1 mole-1 sec-1.

Keywords

Hrčak ID:

197562

URI

https://hrcak.srce.hr/197562

Publication date:

1.4.1970.

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