Thermodynamics Research Center / ThermoML | Journal of Chemical Thermodynamics

Experimental and Nitta-Chao model prediction of high pressure density of p-xylene with dialkyl carbonates or n-alkanes

Gayol, A.[Ana], Martini, R. E.[Raquel E.], Andreatta, A. E.[Alfonsina E.], Legido, J. L.[Jose L.], Casas, L. M.[Lidia M.]
J. Chem. Thermodyn. 2014, 69, 193-200
ABSTRACT
New data of high pressure density have been reported for p-xylene pure component and its binary mixtures with dimethyl carbonate, diethyl carbonate, n-octane and n-decane at (288.15, 298.15 and 308.15) K and (0.1, 5, 10, 20, 30 and 40) MPa and they have been compared with those available in the literature. The high pressure density has been correlated and predicted using a modified Tait equation and Nitta Chao group contribution model respectively. The derived thermophysical properties such as isothermal compressibility (jT), isobaric thermal expansivity (aP) and internal pressure (p) have been also calculated.
Compounds
# Formula Name
1 C3H6O3 dimethyl carbonate
2 C5H10O3 diethyl carbonate
3 C8H18 octane
4 C10H22 decane
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
  • 5
  • Mass density, kg/m3 ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Vibrating tube method
  • 18
  • POMD
  • 5
  • 1
  • Mass density, kg/m3 ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Mole fraction - 1; Liquid
  • Liquid
  • Vibrating tube method
  • 180
  • POMD
  • 2
  • 5
  • Mass density, kg/m3 ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Mole fraction - 2; Liquid
  • Liquid
  • Vibrating tube method
  • 216
  • POMD
  • 5
  • 3
  • Mass density, kg/m3 ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Mole fraction - 3; Liquid
  • Liquid
  • Vibrating tube method
  • 198
  • POMD
  • 5
  • 4
  • Mass density, kg/m3 ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Mole fraction - 4; Liquid
  • Liquid
  • Vibrating tube method
  • 216