Abstract
The apparent molar volumes of Mg, Ca, Sr, and Ba hexacyanocobaltates (III) have been determined from 1×104 to 0.2M (mol-dm−3), using both vibrating tube densimeter and dilatometric methods. The semiempirical Pitzer equation has been used to reproduce the experimental data. Positive deviations from the Debye-Hueckel limiting law (DHLL) have been observed at C<0.01M and are compared with the predictions of two other electrostatic approaches, the DHLL+B2 approximation of the Mayer theory and the numerical integration of the exponential Poisson-Boltzmann equation. A least squares procedure has been used to obtain the best fit parameters, including the apparent molar volume at infinite dilution.
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Malatesta, F., Zamboni, R. & Lepori, L. Apparent molar volumes of alkaline earth hexacyanocobaltates (III) in aqueous solution at 25°C. J Solution Chem 16, 699–714 (1987). https://doi.org/10.1007/BF00652573
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DOI: https://doi.org/10.1007/BF00652573