Apparent molar volumes and compressibilities of selected electrolytes in dimethylsulfoxide

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...

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Bibliographic Details
Published in:The Journal of chemical thermodynamics 2010-12, Vol.42 (12), p.1451-1457
Main Authors: Warmińska, Dorota, Grzybkowski, Wacław
Format: Article
Language:English
Subjects:
Apparent molar isentropic compressibility
Apparent molar volume
Chemical thermodynamics
Chemistry
Dimethylsulfoxide
Exact sciences and technology
General and physical chemistry
Mixtures
Solvation
Thermodynamic properties
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Summary: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.
ISSN:0021-9614
1096-3626
DOI:10.1016/j.jct.2010.07.003