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ENTHALPY OF FORMATION OF AQUEOUS HYDROFLUORIC ACID: REVISION NEEDED?

Published

Author(s)

Yauheni Paulechka, Andrei F. Kazakov

Abstract

Accurate enthalpies of formation of hydrofluoric acid in the gas and liquid states as well as in aqueous solutions are critical for reduction and interpretation of combustion calorimetry data for fluorinated compounds. Analysis of current recommendations reveals inconsistencies with the existing literature that can significantly affect experimental values derived using these recommendations. Through thorough and comprehensive analysis of available experimental data, including the sources not considered before, we provide recommendations that substantially improve consistency with these results. However, the scatter in the existing data also prevents further improvements and uncertainty reduction. New experimental data, particularly for aqueous HF solutions, are needed to advance.
Citation
Journal of Chemical Thermodynamics
Volume
142

Keywords

enthalpy of formation, hydrofluoric acid

Citation

Paulechka, Y. and Kazakov, A. (2019), ENTHALPY OF FORMATION OF AQUEOUS HYDROFLUORIC ACID: REVISION NEEDED?, Journal of Chemical Thermodynamics, [online], https://doi.org/10.1016/j.jct.2019.105999 (Accessed May 17, 2024)

Issues

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Created November 6, 2019, Updated July 8, 2020