Redox potentials of the 0.66LiF-0.34BeF 2  system containing NiF 2 , FeF 2  and CrF 2  additions

Stepan P. Arkhipov; Yury P. Zaikov; Pavel A. Arkhipov; Albert R. Mullabaev

doi:10.15826/elmattech.2026.5.069

Redox potentials of the 0.66LiF-0.34BeF₂ system containing NiF₂, FeF₂ and CrF₂ additions

Stepan P. Arkhipov, Yury P. Zaikov, Pavel A. Arkhipov, Albert R. Mullabaev

Abstract

The redox potentials of the molten mixture of lithium and beryllium fluorides containing nickel, iron, and chromium fluorides (LiF-BeF₂-NiF₂; LiF-BeF₂-FeF₂; LiF-BeF₂-CrF₂) were measured at the temperatures of 923, 973 and 1023 K with different concentrations of nickel, iron and chromium fluorides in the melt. The experimental dependencies of redox potentials of the studied systems were obtained using a molybdenum indicator electrode. Redox potentials were found to change linearly as the temperature increased in the whole studied ranges of temperature and nickel, iron and chromium difluoride concentration. The comparative analysis of data allowed concluding that the values of the equilibrium potentials realized at the nickel, iron, and chromium electrode surfaces are close to the value of the molybdenum indicator electrode, measured in the same salt systems.

Keywords

nickel; iron; chromium; redox potential; fluoride melt

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DOI: https://doi.org/10.15826/elmattech.2026.5.069

Copyright (c) 2026 Stepan P. Arkhipov, Yury P. Zaikov, Pavel A. Arkhipov, Albert R. Mullabaev

This work is licensed under a Creative Commons Attribution 4.0 International License.

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