Thermodynamics Research Center / ThermoML | Journal of Chemical Thermodynamics

Coexistence curves of critical nonaqueous microemulsions of (AOT + DMA + nonane) and (AOT + DMA + octane)

Peng, S.[Sanjun], An, X.[Xueqin], Shen, W.[Weiguo]
J. Chem. Thermodyn. 2006, 38, 1, 43-48
ABSTRACT
The coexistence curves of (T,n), (T,/) and (T,w) (n, /, w are the refractive index, the volume fraction, and the effective volume fraction, respectively) for two ternary nonaqueous microemulsion systems have been determined at constant pressure and a constant molar ratio x of DMA to AOT. The critical exponent b and the critical amplitude B have been deduced, and the values of b were consistent with the theory of 3D-Ising in a region sufficiently close to the critical temperature. The results show that the coexistence curves have been successfully described by the Wegner equation and the expression for the diameter.
Compounds
# Formula Name
1 C9H20 nonane
2 C4H9NO N,N-dimethylethanamide
3 C20H37NaO7S sodium bis(2-ethylhexyl) sulfosuccinate
4 C8H18 octane
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
  • 4
  • 2
  • 3
  • Upper consolute temperature, K ; Liquid mixture 1
  • Solvent: Amount ratio of component to other component of binary solvent - 3; Liquid mixture 1
  • Pressure, kPa; Liquid mixture 1
  • Liquid mixture 1
  • Liquid mixture 2
  • Derived from refractive index data
  • 1
  • POMD
  • 4
  • 2
  • 3
  • Upper consolute temperature, K ; Liquid mixture 1
  • Volume fraction - 4; Liquid mixture 1
  • Pressure, kPa; Liquid mixture 1
  • Liquid mixture 1
  • Liquid mixture 2
  • Derived from refractive index data
  • 1
  • POMD
  • 1
  • 2
  • 3
  • Upper consolute temperature, K ; Liquid mixture 1
  • Solvent: Amount ratio of component to other component of binary solvent - 3; Liquid mixture 1
  • Pressure, kPa; Liquid mixture 1
  • Liquid mixture 1
  • Liquid mixture 2
  • Derived from refractive index data
  • 1
  • POMD
  • 1
  • 2
  • 3
  • Upper consolute temperature, K ; Liquid mixture 1
  • Volume fraction - 1; Liquid mixture 1
  • Pressure, kPa; Liquid mixture 1
  • Liquid mixture 1
  • Liquid mixture 2
  • Derived from refractive index data
  • 1