ABSTRACT

Isobaric vapor-liquid equilibrium (VLE) measurements are reported for binary mixtures of tetrahydrofuran and tetrahydropyran with (1-methylethyl)benzene at 97.3 kPa. The data were obtained using a vapor recirculating-type (modified Othmer s) equilibrium still. Both mixtures show negative deviation from ideality. None of the systems form an azeotrope. The experimental data obtained in this study are thermodynamically consistent according to the Herington and Black tests. The activity coefficients have been satisfactorily correlated by means of the Margules and NRTL equations. Excess Gibbs free energy has been calculated from the experimental data. The vapor-liquid equilibrium predictions have been done by the UNIFAC group contribution method too.

Compounds

#	Formula	Name
1	C4H8O	tetrahydrofuran
2	C5H10O	tetrahydropyran
3	C9H12	isopropylbenzene

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	Normal boiling temperature, K ; Liquid			Liquid Gas	Ebulliometric method (Recirculating still)	1
POMD	1	Refractive index (Na D-line) ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Standard Abbe refractometry	1
POMD	2	Normal boiling temperature, K ; Liquid			Liquid Gas	Ebulliometric method (Recirculating still)	1
POMD	2	Refractive index (Na D-line) ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Standard Abbe refractometry	1
POMD	3	Normal boiling temperature, K ; Liquid			Liquid Gas	Ebulliometric method (Recirculating still)	1
POMD	3	Refractive index (Na D-line) ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Standard Abbe refractometry	1
POMD	3 1	Boiling temperature at pressure P, K ; Liquid	Mole fraction - 1; Gas	Pressure, kPa; Liquid	Liquid Gas	Ebulliometric method (Recirculating still)	21
POMD	3 1	Mole fraction - 1 ; Liquid	Mole fraction - 1; Gas	Pressure, kPa; Liquid	Liquid Gas	Index of refraction calibration data	21
POMD	3 2	Boiling temperature at pressure P, K ; Liquid	Mole fraction - 2; Gas	Pressure, kPa; Liquid	Liquid Gas	Ebulliometric method (Recirculating still)	21
POMD	3 2	Mole fraction - 2 ; Liquid	Mole fraction - 2; Gas	Pressure, kPa; Liquid	Liquid Gas	Index of refraction calibration data	21

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

Experimental Isobaric Vapor-Liquid Equilibrium Data for Binary Mixtures of Cyclic Ethers with (1-Methylethyl)benzene

Gill, B. K.[Baljinder K.], Rattan, V. K.[Virender K.], Kapoor, S.[Seema]

ABSTRACT