The Determination of Oxidation-Reduction Potentials from Equilibrium Data

Authors

Stephen Popoff, State University of IowaFollow
V. B. Fleharty, State University of Iowa
E. L. Hanson, State University of Iowa

Document Type

Research

Abstract

The determination of the oxidation-reduction potentials is more reliable from equilibrium data than from electromotive force data. The potential of the ferric-ferrous electrode was calculated from the experimentally determined equilibrium constant of the reaction: 2Fe (ClO₄)₃ +2Hg⇔ 2Fe (ClO₄)₂+Hg₂ (ClO₄)₂ The perchlorates, mercury, and perchloric acid are better suited for the determination of the equilibrium constant than the nitrates, silver and nitric acid employed by A. A. Noyes and Braun (J. Arn. Chem. Soc. 34, 1016, 1912). The true equilibrium constant of the reaction was determined by suitable experimental procedure and subsequent mathematical and graphical analysis.

Publication Date

1929

Journal Title

Proceedings of the Iowa Academy of Science

Volume

36

Issue

1

First Page

265

Last Page

265

Copyright

©1929 Iowa Academy of Science, Inc.

Language

en

File Format

application/pdf

Recommended Citation

Popoff, Stephen; Fleharty, V. B.; and Hanson, E. L. (1929) "The Determination of Oxidation-Reduction Potentials from Equilibrium Data," Proceedings of the Iowa Academy of Science, 36(1), 265-265.
Available at: https://scholarworks.uni.edu/pias/vol36/iss1/52