Comparative Balancing of Non-Redox and Redox Electrolytic Systems and Its Consequences

Anna Maria Michałowska-Kaczmarczyk, Tadeusz Michałowski

Department of Analytical Chemistry, Technical University of Cracow, Cracow, Poland.
Department of Oncology, The University Hospital in Cracow, Cracow, Poland.

DOI: 10.4236/ajac.2013.410A1006                

Abstract

In this paper, it is proved that linear combination 2·f(O) － f(H) of elemental balances: f(O) for O and f(H) for H is linearly independent on charge and elemental/core balances for all redox systems of any degree of complexity; it is the primary form of the Generalized Electron Balance (GEB), , considered as the Approach II to GEB. The Approach II is equivalent to the Approach I based on the principle of common pool of electrons. Both Approaches are illustrated on an example of titration of acidified (H₂SO₄) solution of H₂C₂O₄ with KMnO₄. It is also stated, on an example of titration of the same solution with NaOH, that 2·f(O) － f(H) is a linear combination of charge and elemental/core balances, i.e. it is not an independent balance when related to the non-redox system. These properties of 2·f(O) － f(H) can be extended on redox and non-redox systems, of any degree of complexity, i.e. the linear independency/dependency of 2·f(O) － f(H) on other balances related to a system in question is a criterion distinguishing redox and non-redox systems. The GEB completes the set of (charge and concentration) balances and a set of expressions for independent equilibrium constants needed for modeling the related redox system.

Keywords

Electrolytic Systems; Redox Systems; GEB; GATES

Conflicts of Interest

The authors declare no conflicts of interest.

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