Electrical Conductivity of Low-Melting AlF3-NaF and KF-AlF3 Solutions

Piotr Palimąka; Stanisław Pietrzyk

doi:10.4028/www.scientific.net/KEM.641.169

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HomeKey Engineering MaterialsKey Engineering Materials Vol. 641Electrical Conductivity of Low-Melting AlF3-NaF...

Electrical Conductivity of Low-Melting AlF₃-NaF and KF-AlF₃ Solutions

Abstract:

In this work the electrical conductivity of molten sodium cryolite solutions (Na₃AlF₆) and potassium cryolite solutions (K₃AlF₆) containing different contents of aluminum fluoride were investigated. Experiments were carried out in a temperature range including the liquid phase, using electrochemical impedance spectroscopy (EIS). Based on the conducted studies, it was found that the electrical conductivity of the studied electrolytes decreases with decreasing temperature and increasing content of aluminum fluoride. It was also found that in the temperature range in which the studied salts are in the liquid state, the solutions of potassium cryolite have lower electrical conductivity than the solutions of sodium cryolite.

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Periodical:

Key Engineering Materials (Volume 641)

Pages:

169-172

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.641.169

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Online since:

April 2015

Authors:

Piotr Palimąka*, Stanisław Pietrzyk

Keywords:

Aluminium Electrolysis, Electrical Conductivity, Low-Melting Electrolytes

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References

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