Thermodynamics Research Center / ThermoML | Journal of Chemical Thermodynamics

(Vapour + liquid) equilibria of the {1,1-difluoroethane (HFC-152a) + n-butane (HC-600)} system

Im, J.[Jihoon], Lee, G.[Gangwon], Lee, Y.-J.[Yong-Jin], Kim, H.[Hwayong]
J. Chem. Thermodyn. 2007, 39, 8, 1164-1167
ABSTRACT
Binary (vapour + liquid) equilibrium data were obtained for the {1,1-difluoroethane (HFC-152a) + n-butane (HC-600)} system at temperatures from 313.15 K to 363.15 K. These experiments were carried out with a circulating-type apparatus with on-line gas chromatography. The experimental data were correlated well by Peng Robinson equation of state using the Wong Sandler mixing rules. This system shows positive azeotropic phase behaviour.
Compounds
# Formula Name
1 C2H4F2 1,1-difluoroethane
2 C4H10 butane
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
  • Vapor or sublimation pressure, kPa ; Liquid
  • Temperature, K; Liquid
  • Liquid
  • Gas
  • CCELL:UFactor:2
  • 5
  • POMD
  • 2
  • Vapor or sublimation pressure, kPa ; Liquid
  • Temperature, K; Liquid
  • Liquid
  • Gas
  • CCELL:UFactor:2
  • 6
  • POMD
  • 1
  • 2
  • Vapor or sublimation pressure, kPa ; Liquid
  • Mole fraction - 1; Liquid
  • Temperature, K; Liquid
  • Liquid
  • Gas
  • CCELL:UFactor:2
  • 63
  • POMD
  • 1
  • 2
  • Mole fraction - 1 ; Gas
  • Mole fraction - 1; Liquid
  • Temperature, K; Gas
  • Gas
  • Liquid
  • Chromatography
  • 63