Excess molar volumes, viscosity deviations and isentropic compressibility changes in glycylglycine-NiCl2 aqueous ethanol mixtures
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Date
2010
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Abstract
The densities, viscosities and ultrasonic velocities for glycylglycine-NiCl<inf>2</inf> in aqueous ethanol mixtures have been studied in the temperature range 288.15-318.15K. The excess molar volumes, viscosity deviations and changes in isentropic compressibility for the binary mixtures have been calculated and discussed in terms of hydrogen bonding and structure-breaking effect. The computed results are fitted to the Redlich-Kister polynomial. The results clearly indicate that there is a strong association in the mixtures studied. © 2010 Elsevier B.V.
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Keywords
Aqueous ethanol, Excess molar volumes, Glycyl-glycine, Hydrogen bondings, Isentropic compressibility, NiCl2, Redlich-Kister polynomials, Temperature range, Viscosity deviation, Viscosity deviations, Compressibility, Ethanol, Hydrogen bonds, Viscosity, Volume measurement, Binary mixtures
Citation
Fluid Phase Equilibria, 2010, 298, 1, pp. 169-172