Conductance in homomorphous solvents: Tetrabutylammonium salts and alkali picrates in butyrolactone-sulfolane mixtures |
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Authors: | Alessandro D' Aprano Dorina Ines Donato Antonio Carrubba Doctor in Chemistry thesis of A Carrubba |
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Institution: | (1) Istituto Di Chimica Fisica, Università Di Palermo, Via Archirafi 26, 90123 Palermo, Italy;(2) University of Palermo, Italy |
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Abstract: | Conductance measurements are reported for LiPi, NaPi, KPi, RbPi, CsPi, Bu4NPi, Bu4NBr, Bu4NClO4, Bu4NNO3, and Bu4NBBu4 at 25°C in -butyrolactone-sulfolane mixtures. In these mixtures of solvents that are practically homomorphous, isodielectic and with comparable dipole moments, the ion pair association and ionic mobilities of large ions conform to the expectations of the primitive model. Electrolytes containing lithium or sodium ions show anomalies indicating that other factors besides shape, dipole moment, and polarizability of the solvent molecules are involved in the association and transport processes of these ions. |
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Keywords: | Conductance alkali picrates tetrabutylammonium salts butyrolactone-sulfolane mixtures ion pair association ionic mobilities |
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