Ion association in aqueous solution

作者: Marielle Soniat , Grayson Pool , Lisette Franklin , Steven W. Rick

DOI: 10.1016/J.FLUID.2015.05.001

关键词: Chemical physicsPairingElectrostaticsAqueous solutionIonIon-associationPolarizabilitySolvationAtomic physicsOsmotic coefficientChemistry

摘要: Abstract The properties of aqueous ionic solutions are determined by strong electrostatic interactions, which influenced polarizability and charge transfer interactions. Potential models include have been developed for water single ion properties. Here, the ion–ion interactions optimized so that osmotic pressure as a function concentration is reproduced. Using potentials, amount pairing larger cluster formation calculated. For NaCl, NaI, KCl, there small pairing, with clusters present well. KI, much more observed. consistent law matching affinities, pairs show least also being most mis-matched in terms size or solvation free energy. transfered from anions to than transferred cations, molecules acquire negative charge, increases concentration.

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