Conductometric studies of DyCl3 in dilute aqueous solution |
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| Authors: | B Fourest R Bury L R Morss J M'Halla F David |
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| Institution: | (1) Institut de Physique Nucléaire, 91406 Orsay Cedex, France;(2) Université Pierre et Marie Curie, 75230 Paris Cedex 05, France;(3) Chemistry Division, Argonne National Laboratory, 60439 Argonne, IL;(4) Faculté des Sciences et Techniques, Monastir, Tunisia |
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| 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  o(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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| Keywords: | Conductivity Dy3+ion electrolyte mixtures hydrolysis |
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