氢氟酸水溶液的生成焓：是否需要修正？
ENTHALPY OF FORMATION OF AQUEOUS HYDROFLUORIC ACID: REVISION NEEDED?
作者信息
Paulechka Eugene, Kazakov Andrei
机构信息
Thermodynamics Research Center, Applied Chemicals and Materials Division, National Institute of Standards and Technology, 325 Broadway, Boulder, CO 80305-3337.
出版信息
J Chem Thermodyn. 2020;142. doi: 10.1016/j.jct.2019.105999.
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.
准确测定气态、液态以及水溶液状态下氢氟酸的生成焓，对于还原和解释含氟化合物的燃烧量热数据至关重要。对当前推荐值的分析表明，其与现有文献存在不一致之处，这可能会显著影响使用这些推荐值得出的实验值。通过对现有实验数据进行全面深入的分析，包括之前未考虑的数据源，我们提出了一些建议，这些建议能大幅提高与这些结果的一致性。然而，现有数据的分散性也阻碍了进一步的改进和不确定性的降低。需要新的实验数据，尤其是关于氢氟酸水溶液的实验数据，才能取得进展。
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