- 作者: Moustafa Farag Bakr and Abd Allah Abd El-Wahab Mohamed
- 中文摘要:
This paper presents the conductivity measurements for some alkaline earth metal salts MgCl2, MgBr2, Mg(NO3)2, CaCl2, CaBr2 and Ca(NO3)2 by which the ion-solvent interactions are reported in the concentration range in dioxane-water mixtures at mass fraction of 0, 3, 10, 20 and 30% at 30°, 35°, 40° and 45 °C ± 0.01.
The conductance data were analyzed for the limiting molar conductivity, Lo, by the Fuoss-Edelson conductivity equation for the 2:1 unsymmetrical electrolytes. The results were discussed in terms of the solute-solvent interaction from the temperature coefficient of Walden product, Loh of the electrolyte solutions. Moreover, Loh was found to exhibit a linear relationship with the dielectric constant, e, of the dioxane-water mixtures. The study gives information regarding the ion-solvent interactions from the mobilities and Walden product of the ions in the solvent. The ions appear to interact appreciably and the ion-solvent interaction tends to increase in the order Ca > Mg for the same anion while for the anions, the trend decreases in the order Cl– < Br– < No–3. - 英文摘要: --
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