Journal of Thermal Analysis and Calorimetry

, Volume 115, Issue 2, pp 1805–1811 | Cite as

Thermodynamic properties of non-electrolyte solutions

  • K. Sreenivasulu
  • V. Govinda
  • P. Venkateswarlu
  • K. Sivakumar


Experimental densities (ρ) and ultrasonic sound velocities (u) for the binary mixtures of toluene, o-chlorotoluene, m-chlorotoluene, and p-chlorotoluene with 1-octanol were measured over the entire composition range at T = (298.15, 303.15, and 308.15) K and at a pressure of 0.1 MPa. Excess volumes (V E), isentropic compressibilities \( (\kappa_{\text{s}} ) \), and excess isentropic compressibilities \( (\kappa_{\text{s}}^{\text{E}} ) \) were calculated using the measured experimental densities and ultrasonic sound velocities of the pure liquids and their mixtures. The experimental data were discussed in terms of intermolecular interactions between component molecules. The measured excess properties were correlated with the Redlich–Kister polynomial equation.


Density Excess volume Isentropic compressibility Molecular interaction Redlich–Kister 


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Copyright information

© Akadémiai Kiadó, Budapest, Hungary 2013

Authors and Affiliations

  • K. Sreenivasulu
    • 1
  • V. Govinda
    • 2
  • P. Venkateswarlu
    • 2
  • K. Sivakumar
    • 1
  1. 1.Department of ChemistryS.V. Arts UG & PG College (TTD’S)TirupatiIndia
  2. 2.Thermo Chemical Laboratories, Department of ChemistrySri Venkateswara UniversityTirupatiIndia

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