Enthalpies of solution of tetramethyl-ammonium chloride in aqueous-organic binary solvent systems |
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| Authors: | Marny E. Estep Digby D. Macdonald James B. Hyne |
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| Affiliation: | (1) Department of Chemistry, University of Calgary, Calgary, Alberta, Canada |
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| Abstract: | Enthalpies of solution of tetramethylammonium chloride in H2O+acetone, H2O+DMSO, and H2O+2,2,2-trifluoroethanol (TFE) are reported. The enthalpies of solution for the frist two solvent systems are positive for all compositions investigated, whereas for the H2O+TFE systems Hs becomes large and negative as the mole fraction of TFE is increased past 0.2. The enthalpy-of-solution data are rationalized on the basis of solvent structural effects and solvation. |
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| Keywords: | Enthalpy of solution tetramethylammonium chloride aqueous acetone aqueous DMSO aqueous ethanol aqueous 2,2,2-trifluoroethanol |
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