ABSTRACT

Vapor-liquid equilibria (VLE) of binary mixtures of (chloroform + 2,2,2-trifluoroethanol) and (R,R,Rtrifluorotoluene + 2,2,2-trifluoroethanol) were determined at the pressure 102 kPa using the dynamic ebulliometry method. The measured activity coefficients of the equilibrium mixtures satisfied the thermodynamic consistency area test of Redlich-Kister to e 3 % and were adequately correlated by means of NRTL and UNIQUAC thermodynamic models. The two systems are low-boiling azeotropes, with maximum excess Gibbs energies of 1238 Jamol-1 for the former and 1226 Jamol-1 for the latter. The azeotrope formation is attributed to different types of hydrogen bonding dominating the mixtures.

Compounds

#	Formula	Name
1	CHCl3	trichloromethane
2	C2H3F3O	2,2,2-trifluoroethanol
3	C7H5F3	(trifluoromethyl)benzene

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	Refractive index (Na D-line) ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Standard Abbe refractometry	1
POMD	1	Boiling temperature at pressure P, K ; Liquid	Pressure, kPa; Liquid		Liquid Gas	Ebulliometric method (Recirculating still)	1
POMD	1	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Pycnometric method	1
POMD	2	Boiling temperature at pressure P, K ; Liquid	Pressure, kPa; Liquid		Liquid Gas	Ebulliometric method (Recirculating still)	1
POMD	2	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Pycnometric method	1
POMD	3	Refractive index (Na D-line) ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Standard Abbe refractometry	1
POMD	3	Boiling temperature at pressure P, K ; Liquid	Pressure, kPa; Liquid		Liquid Gas	Ebulliometric method (Recirculating still)	1
POMD	3	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Pycnometric method	1
POMD	1 2	Boiling temperature at pressure P, K ; Liquid	Mole fraction - 1; Liquid	Pressure, kPa; Gas	Liquid Gas	EBULLIO:UFactor:2	14
POMD	1 2	Mole fraction - 1 ; Gas	Mole fraction - 1; Liquid	Pressure, kPa; Gas	Gas Liquid	Index of refraction calibration data	14
POMD	2 3	Boiling temperature at pressure P, K ; Liquid	Mole fraction - 3; Liquid	Pressure, kPa; Gas	Liquid Gas	EBULLIO:UFactor:2	14
POMD	2 3	Mole fraction - 3 ; Gas	Mole fraction - 3; Liquid	Pressure, kPa; Gas	Gas Liquid	Index of refraction calibration data	14

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

Study of Vapor-Liquid Equilibrium for Binary Mixtures (Chloroform + 2,2,2-Trifluoroethanol) and (r,r,r-Trifluorotoluene + 2,2,2-Trifluoroethanol) at Pressure 102 kPa

Atik, Z.[Zadjia]

ABSTRACT