Apparent molar volumes and compressibilities of selected electrolytes in dimethylsulfoxide |
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Authors: | Dorota Warmińska Wac?aw Grzybkowski |
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Institution: | Department of Physical Chemistry, Chemical Faculty, Gdańsk University of Technology, 80-233 Gdańsk, Poland |
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Abstract: | Densities at T = (293.15, 298.15, 303.15, 313.15, 323.15, and 333.15) K and sound velocities at T = 298.15 K of tetraphenylphosphonium bromide, sodium tetraphenylborate, sodium bromide, and sodium perchlorate in dimethylsulfoxide have been measured over the composition range from (0 to 0.3) mol · kg−1. From these data, apparent molar volumes and apparent molar isentropic compressibilities at infinite dilution as well as the expansibilities have been evaluated. The results have been discussed in terms of employing tetraphenylphosphonium tetraphenylborate as a reference electrolyte in splitting the limiting apparent molar volumes and apparent molar isentropic compressibilities into ionic contributions. |
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Keywords: | Solvation Apparent molar volume Apparent molar isentropic compressibility Dimethylsulfoxide |
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