Kunz, Werner and Belloni, L. and Bernard, Olivier and Ninham, Barry W. (2004) Osmotic coefficients and surface tensions of aqueous electrolyte solutions: Role of dispersion forces. Journal of Physical Chemistry B 108 (7), pp. 2398-2404.
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Osmotic coeffs. of a series of 16 aq. electrolyte solns. are described at concns. ≤1 M with the help of HNC calcns. and solvent-averaged potentials of charged hard spheres with an addnl. necessary dispersion potential, omitted from all earlier treatments. The adjusted ionic radii and excess polarizabilities have values of the expected order of magnitude. Whereas the description of the bulk properties is satisfactory, the theory is not so successful in predicting the surface tensions of the corresponding solns. (Hofmeister series). The reasons for this are quite subtle and explored in the text. It is clear now how to make further progress and tackle hydration in a consistent way.
|Institutions:||Chemistry and Pharmacy > Institut für Physikalische und Theoretische Chemie > Chair of Chemistry VI - Physical Chemistry (Solution Chemistry) > Prof. Dr. Werner Kunz|
|Keywords:||electrolytic soln osmotic coeff surface tension calcn dispersion force|
|Subjects:||500 Science > 540 Chemistry & allied sciences|
|Refereed:||Yes, this version has been refereed|
|Created at the University of Regensburg:||Yes|
|Deposited On:||29 May 2012 08:35|
|Last Modified:||29 May 2012 08:35|