Archer, D.
(2005),
Enthalpy of solution of potassium tetrafluoroborate in water and in aqueous sodium fluoride. Thermodynamic properties of the aqueous tetrafluouroborate anion and potassium tetrafluroborate, Journal of Chemical and Engineering Data, [online], https://doi.org/10.1021/je049599z
(Accessed March 21, 2025)
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Enthalpy of solution of potassium tetrafluoroborate in water and in aqueous sodium fluoride. Thermodynamic properties of the aqueous tetrafluouroborate anion and potassium tetrafluroborate
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Abstract
An adiabatic calorimeter was used to measure the enthalpy of solution of potassium tetrafluoroborate (0.01mol.kg-1 to 0.02 mol.kg-1) into water and into aqueous sodium fluoride of different ionic strengths (0.2 mol.kg-1 and 0.5 mol.kg-1) at 298 K and 313 K. The present results yield the standard-state enthalpy and heat capacity for the solution process, and, when combined with literature values for solubilities, yield the standard-state entropy of the solution process. From these properties, and previous measurements involving potassium tetrafluoroborate, we provide new analysis of thermodynamic properties of the aqueous tetrafluoroborate ion and compare these new properties to previous tabulations and explain the sources of discrepancies in the literature.Citation
Journal of Chemical and Engineering Data
Volume
50
Issue
2
Pub Type
Journals
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Keywords
aqueous, enthalpy, entropy, Gibbs energy, heat capacity, solubility, solution, tetreafluoroborate, thermodynamic
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Created February 4, 2005, Updated January 27, 2020