The Conductance of Aqueous Solutions of Calcium Chloride at Temperatures from 15° to 45°C
- 1 November 1945
- journal article
- conference paper
- Published by AIP Publishing in The Journal of Chemical Physics
- Vol. 13 (11) , 470-472
- https://doi.org/10.1063/1.1723980
Abstract
The conductance of aqueous solutions of calcium chloride at temperatures from 15° to 45°C has been determined by the direct-current method previously used for potassium chloride, sodium chloride, and potassium bromide. The results for 25° are in excellent agreement with those of Shedlovsky and Brown. At all temperatures the data can be represented by the extended Onsager-Shedlovsky equation, as in the case of the 1–1 salts. In contrast to the 1–1 salts, however, the contribution of the logarithmic term passes through a minimum with increasing temperature, and then rises. The limiting conductance has been determined for calcium ion; the temperature coefficient of the ionic conductance is large in comparison with those for univalent ions.Keywords
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