Thermodynamics of solvation of ions. Part 5. - Gibbs free energy of hydration at 298.15 K

Yizhak Marcus*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

1900 Scopus citations

Abstract

The standard molar Gibbs free energies of hydration, ΔhydG0, of 109 (mainly inorganic) ions ranging in their charges from -3 to +4 have been compiled and interpreted in terms of a model used previously for other thermodynamic quantities of hydration. The main contributions to ΔhydG0 are the electrostatic effects, resulting in solvent immobilization, electrostriction, and dielectric saturation in a hydration shell of specified thickness, and further such effects on the water that surrounds this shell. Other effects contribute to ΔhydG0 to a minor extent only.

Original languageEnglish
Pages (from-to)2995-2999
Number of pages5
JournalPhysical Chemistry Chemical Physics
Volume87
Issue number18
DOIs
StatePublished - 1991

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