Abstract
The limiting conductivity of Dy3+(aq) has been determined for the first time by linear extrapolation of conductivity measured in dilute aqueous solutions of (DyCl3+HCl) at 25°C as λo(Dy3+, aq) = (62.9±0.7) S-cm2-eq-1. A second set of conductivity measurements in dilute aqueous solutions of DyCl3 has given evidence of very slight hydrolysis of the cation, with a first hydrolysis constant of 6 x 10−8 mol-dm−3 (pK=7.2±0.5) calculated by applying the Onsager-Kim law of electrolyte mixtures.
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F. David and B. Fourest, IPNO-DRE 88-27, CNRS, Université Paris-Sud, 91406 Orsay, France.
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Fourest, B., Bury, R., Morss, L.R. et al. Conductometric studies of DyCl3 in dilute aqueous solution. J Solution Chem 22, 151–162 (1993). https://doi.org/10.1007/BF00650681
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DOI: https://doi.org/10.1007/BF00650681