ABSTRACT

Liquid liquid equilibrium data are presented for the pseudoternary systems isooctane benzene (90 mass% methanol + 10 mass% water) at 298.15K and isooctane benzene (80 mass% methanol + 20 mass% water) at 298.15 and 308.15 K, under atmospheric pressure. The experimental tie-line data obtained define the binodal curve for each one of the studied systems which depending on the amount of water present show type I or type II liquid liquid phase diagrams. In order to obtain a general view of the effect of water on the partitioning of methanol and hence on the size of the two-phase region we have also determined experimentally isowater tolerance curves for the system isooctane benzene methanol at 298.15 K, hence the tie-line data were also obtained for the ternary system. The experimental tie-line data for the four systems studied were correlated with the NRTL and UNIQUAC solution models obtaining a very good reproduction of the experimental behaviour.

Compounds

#	Formula	Name
1	CH4O	methanol
2	C6H6	benzene
3	C8H18	2,2,4-trimethylpentane

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 3	Mole fraction - 2 ; Liquid mixture 1 Mole fraction - 2 ; Liquid mixture 2 Mole fraction - 3 ; Liquid mixture 2	Mole fraction - 3; Liquid mixture 1	Temperature, K; Liquid mixture 1 Pressure, kPa; Liquid mixture 1	Liquid mixture 1 Liquid mixture 2	Chromatography Chromatography Chromatography	5

Thermodynamics Research Center / ThermoML | Fluid Phase Equilibria

Liquid liquid equilibria for pseudoternary systems: isooctane benzene (methanol +water)

Garcia-Flores, B. E., Gramajo de Doz, M. B.[Monica B.], Trejo, A.[Arturo]

ABSTRACT