ABSTRACT

Tie-line points (LLE) for binary systems of cyclohexane + methanol and cyclohexane + 2,2,2-trifluoroethanol were determined at temperatures from T ) (278.15 to 318.15) K and at atmospheric pressure. The NRTL and UNIQUAC activity coefficient models with temperature-dependent parameters correlated from experimental data gave a good reconstruction of the phase envelope for the two systems. The temperature effect on the 2,2,2-trifluoroethanol system is quite significant, with the predicted critical solution point by means of NRTL equation equal to: Tcs ) 335.1 K, xTFE cs ) 0.548.

Compounds

#	Formula	Name
1	CH4O	methanol
2	C3H8O	propan-2-ol
3	C6H12	cyclohexane
4	C2H3F3O	2,2,2-trifluoroethanol
5	C7H16	heptane

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	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Vibrating tube method	1
POMD	2	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Vibrating tube method	1
POMD	3	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Vibrating tube method	1
POMD	4	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Vibrating tube method	1
POMD	5	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Vibrating tube method	1
POMD	1 3	Mole fraction - 3 ; Liquid mixture 2	Temperature, K; Liquid mixture 2	Pressure, kPa; Liquid mixture 1	Liquid mixture 2 Liquid mixture 1	CHROM:UFactor:8	9
POMD	1 3	Mole fraction - 3 ; Liquid mixture 1	Temperature, K; Liquid mixture 1	Pressure, kPa; Liquid mixture 1	Liquid mixture 1 Liquid mixture 2	CHROM:UFactor:8	9
POMD	4 3	Mole fraction - 3 ; Liquid mixture 1	Temperature, K; Liquid mixture 1	Pressure, kPa; Liquid mixture 1	Liquid mixture 1 Liquid mixture 2	CHROM:UFactor:8	9
POMD	4 3	Mole fraction - 3 ; Liquid mixture 2	Temperature, K; Liquid mixture 2	Pressure, kPa; Liquid mixture 1	Liquid mixture 2 Liquid mixture 1	CHROM:UFactor:8	9

Thermodynamics Research Center / ThermoML | Journal of Chemical and Engineering Data

Liquid-Liquid Equilibrium of (Cyclohexane + 2,2,2-Trifluoroethanol) and (Cyclohexane + Methanol) from (278.15 to 318.15) K

Atik, Z.[Zadjia], Kerboub, W.[Wahiba]

ABSTRACT