Thermodynamics Research Center / ThermoML | International Journal of Thermophysics

Isentropic Compressibilities Changes of Mixing of Tetrahydropyran and Aromatic Hydrocarbons Ternary Mixtures at 308.15 K

Siwach, R. K.[Rajesh K.], Dimple, Sharma, V. K.
Int. J. Thermophys. 2011, 32, 6, 1188-1201
ABSTRACT
Speeds of sound, u ijk , of tetrahydropyran (THP) (i) + benzene (j) + toluene or o- or p-xylene (k), and tetrahydropyran (i)+toluene (j) + o- or p-xylene (k) ternary mixtures have been measured over the entire mole fraction range at 308.15 K and atmospheric pressure. The speed-of-sound data have been used to calculate isentropic compressibilities, (S)ijk , and excess isentropic compressibilities, (SE)ijk . The (SE)ijk values for the investigated mixtures are correlated with the Redlich Kister equation to estimate ternary adjustable parameters and standard deviations. The Moelwyn Huggins concept (Huggins, Polymer 12:357, 1971) of interaction between the surfaces of components of binary mixtures has been extended to predict excess isentropic compressibilities of ternary mixtures by employing the concept of connectivity parameters of the third degree of a molecule (which in turn depends on its topology). It has been observed that (S)ijk values predicted by the Moelwyn Huggins concept compare well with corresponding experimental values.
Compounds
# Formula Name
1 C5H10O tetrahydropyran
2 C6H6 benzene
3 C7H8 toluene
4 C8H10 1,2-dimethylbenzene
5 C8H10 1,4-dimethylbenzene
Datasets
The table above is generated from the ThermoML associated json file (link above). POMD and RXND refer to PureOrMixture and Reaction Datasets. The compound numbers are included in properties, variables, and phases, if specificied; the numbers refer to the table of compounds on the left.
Type Compound-# Property Variable Constraint Phase Method #Points
  • POMD
  • 1
  • Speed of sound, m/s ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Linear variable-path acoustic interferometer
  • 1
  • POMD
  • 1
  • Mass density, kg/m3 ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Pycnometric method
  • 1
  • POMD
  • 2
  • Speed of sound, m/s ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Linear variable-path acoustic interferometer
  • 1
  • POMD
  • 2
  • Mass density, kg/m3 ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Pycnometric method
  • 1
  • POMD
  • 3
  • Speed of sound, m/s ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Linear variable-path acoustic interferometer
  • 1
  • POMD
  • 3
  • Mass density, kg/m3 ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Pycnometric method
  • 1
  • POMD
  • 4
  • Speed of sound, m/s ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Linear variable-path acoustic interferometer
  • 1
  • POMD
  • 4
  • Mass density, kg/m3 ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Pycnometric method
  • 1
  • POMD
  • 5
  • Speed of sound, m/s ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Linear variable-path acoustic interferometer
  • 1
  • POMD
  • 5
  • Mass density, kg/m3 ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Pycnometric method
  • 1
  • POMD
  • 2
  • 3
  • 1
  • Speed of sound, m/s ; Liquid
  • Mole fraction - 1; Liquid
  • Mole fraction - 2; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Linear variable-path acoustic interferometer
  • 26
  • POMD
  • 2
  • 4
  • 1
  • Speed of sound, m/s ; Liquid
  • Mole fraction - 1; Liquid
  • Mole fraction - 2; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Linear variable-path acoustic interferometer
  • 26
  • POMD
  • 2
  • 5
  • 1
  • Speed of sound, m/s ; Liquid
  • Mole fraction - 1; Liquid
  • Mole fraction - 2; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Linear variable-path acoustic interferometer
  • 25
  • POMD
  • 5
  • 3
  • 1
  • Speed of sound, m/s ; Liquid
  • Mole fraction - 1; Liquid
  • Mole fraction - 3; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Linear variable-path acoustic interferometer
  • 26
  • POMD
  • 4
  • 3
  • 1
  • Speed of sound, m/s ; Liquid
  • Mole fraction - 1; Liquid
  • Mole fraction - 3; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Linear variable-path acoustic interferometer
  • 27