Analyzing Values of the Coefficients of Activity in Solutions of Formates of Alkali Metals, Based on Their Dielectric Properties

A generalized Debye-Huckel theory is used to calculate coefficients of activity for water and ions in solutions of alkali metal formates at 298 K, according to experimental values of their static permittivity. It is shown that the model qualitatively reproduces the nonmonotonic dependence of the coefficients of activity in sodium and potassium formate solutions. The effect hydration and ionic association have on their thermodynamic properties in a number of the studied systems is discussed.

Automated summary

A generalized Debye-Huckel theory was used to calculate the coefficients of activity for water and ions in solutions of alkali metal formates at 298 K based on the experimental values of their static permittivity. The model was found to qualitatively reproduce the nonmonotonic dependence of the coefficients of activity in sodium and potassium formate solutions. The effects of hydration and ionic association on the thermodynamic properties of the studied systems were also discussed.