Thermodynamics Research Center / ThermoML | Journal of Chemical Thermodynamics

Universal critical amplitude ratios in binary mixtures of {benzonitrile + alkane}

Yin, T.[Tianxiang], Xie, J.[Jingjing], Liu, S.[Shixia], Lei, Y.[Yuntao], Chen, Z.[Zhiyun], Sheng, W.[Weiguo]
J. Chem. Thermodyn. 2013, 59, 72-79
ABSTRACT
Turbidity in the one-phase region and the isobaric heat capacity per unit volume in both one-phase and two-phase regions for the critical solutions of {benzonitrile + n-alkane} were measured, from which the values of the system-dependent critical amplitudes for the correlation length, the osmotic compressibility, the heat capacity and the correction-to-scaling term of the heat capacity were deduced. The previously reported data of the coexistence curves for {benzonitrile + n-alkane} were also reanalyzed with the crossover model to obtain the crossover parameters. Subsequently, these results together with the values of the critical amplitude related to the coexistence curve reported previously were used to calculate some universal critical amplitude ratios, which showed reasonable agreement with the theoretical predictions.
Compounds
# Formula Name
1 C7H5N benzonitrile
2 C12H26 dodecane
3 C15H32 pentadecane
4 C16H34 hexadecane
5 C17H36 heptadecane
6 C18H38 octadecane
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
  • 2
  • Upper consolute temperature, K ; Liquid mixture 1
  • Liquid mixture 1
  • Liquid mixture 2
  • Air at 1 atmosphere
  • VISOBS
  • 1
  • POMD
  • 1
  • 2
  • Upper consolute composition: mole fraction - 1 ; Liquid mixture 1
  • Liquid mixture 1
  • Liquid mixture 2
  • Air at 1 atmosphere
  • method of "equal volume"
  • 1
  • POMD
  • 1
  • 3
  • Upper consolute temperature, K ; Liquid mixture 1
  • Liquid mixture 1
  • Liquid mixture 2
  • Air at 1 atmosphere
  • VISOBS
  • 1
  • POMD
  • 1
  • 3
  • Upper consolute composition: mole fraction - 1 ; Liquid mixture 1
  • Liquid mixture 1
  • Liquid mixture 2
  • Air at 1 atmosphere
  • method of "equal volume"
  • 1
  • POMD
  • 1
  • 4
  • Upper consolute temperature, K ; Liquid mixture 1
  • Liquid mixture 1
  • Liquid mixture 2
  • Air at 1 atmosphere
  • VISOBS
  • 1
  • POMD
  • 1
  • 4
  • Upper consolute composition: mole fraction - 1 ; Liquid mixture 1
  • Liquid mixture 1
  • Liquid mixture 2
  • Air at 1 atmosphere
  • method of "equal volume"
  • 1
  • POMD
  • 1
  • 5
  • Upper consolute temperature, K ; Liquid mixture 1
  • Liquid mixture 1
  • Liquid mixture 2
  • Air at 1 atmosphere
  • VISOBS
  • 1
  • POMD
  • 1
  • 5
  • Upper consolute composition: mole fraction - 1 ; Liquid mixture 1
  • Liquid mixture 1
  • Liquid mixture 2
  • Air at 1 atmosphere
  • method of "equal volume"
  • 1
  • POMD
  • 1
  • 5
  • Heat capacity at constant pressure per volume, J/K/m3 ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Mole fraction - 1; Liquid
  • Liquid
  • DSC
  • 424
  • POMD
  • 1
  • 6
  • Upper consolute temperature, K ; Liquid mixture 1
  • Liquid mixture 1
  • Liquid mixture 2
  • Air at 1 atmosphere
  • VISOBS
  • 1
  • POMD
  • 1
  • 6
  • Upper consolute composition: mole fraction - 1 ; Liquid mixture 1
  • Liquid mixture 1
  • Liquid mixture 2
  • Air at 1 atmosphere
  • method of "equal volume"
  • 1
  • POMD
  • 1
  • 6
  • Heat capacity at constant pressure per volume, J/K/m3 ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Mole fraction - 1; Liquid
  • Liquid
  • DSC
  • 550