ABSTRACT

Isothermal vapor-liquid equilibria (VLE) are measured for three binary systems containing cyclic ethers: 1,3-dioxolane, 1,4-dioxane or tetrahydropyran in mixture with 1, 2 dichloroethane at ten temperatures ranging from 273.15 to 353.15 K. A laboratory apparatus using the static method was employed to carry out the vapour pressures of the pure components and the mixtures. The VLE data were reduced by the Redlich-Kister equation and used to calculate activity coefficients then excess molar Gibbs free energies GE. The nonideality of the vapor pressure was considered in terms of the second molar virial coefficient. Both the mixtures formed by tetrahydropyran or 1,3-dioxolane with 1,2-dichloroethane show a minimum boiling point azeotrope. The experimental data were compared with the results provided for the modified UNIFAC (Do) and the DISQUAC models.

Compounds

#	Formula	Name
1	C2H4Cl2	1,2-dichloroethane
2	C3H6O2	1,3-dioxolane
3	C4H8O2	1,4-dioxane
4	C5H10O	tetrahydropyran

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	Phase	Method	#Points
POMD	1	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid	Liquid	Vibrating tube method	1
POMD	1	Vapor or sublimation pressure, kPa ; Liquid	Temperature, K; Liquid	Liquid Gas	Closed cell (Static) method	1
POMD	1	Vapor or sublimation pressure, kPa ; Liquid	Temperature, K; Liquid	Liquid Gas	Closed cell (Static) method	10
POMD	2	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid	Liquid	Vibrating tube method	1
POMD	2	Vapor or sublimation pressure, kPa ; Liquid	Temperature, K; Liquid	Liquid Gas	Closed cell (Static) method	1
POMD	2	Vapor or sublimation pressure, kPa ; Liquid	Temperature, K; Liquid	Liquid Gas	Closed cell (Static) method	9
POMD	3	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid	Liquid	Vibrating tube method	1
POMD	3	Vapor or sublimation pressure, kPa ; Liquid	Temperature, K; Liquid	Liquid Gas	Closed cell (Static) method	1
POMD	3	Vapor or sublimation pressure, kPa ; Liquid	Temperature, K; Liquid	Liquid Gas	Closed cell (Static) method	8
POMD	4	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid	Liquid	Vibrating tube method	1
POMD	4	Vapor or sublimation pressure, kPa ; Liquid	Temperature, K; Liquid	Liquid Gas	Closed cell (Static) method	1
POMD	4	Vapor or sublimation pressure, kPa ; Liquid	Temperature, K; Liquid	Liquid Gas	Closed cell (Static) method	9
POMD	1 2	Vapor or sublimation pressure, kPa ; Liquid	Temperature, K; Liquid Mole fraction - 1; Liquid	Liquid Gas	Closed cell (Static) method	45
POMD	1 3	Vapor or sublimation pressure, kPa ; Liquid	Temperature, K; Liquid Mole fraction - 1; Liquid	Liquid Gas	Closed cell (Static) method	45
POMD	1 4	Vapor or sublimation pressure, kPa ; Liquid	Temperature, K; Liquid Mole fraction - 1; Liquid	Liquid Gas	Closed cell (Static) method	45

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

Isothermal Vapor-Liquid Equilibria and Excess Gibbs Energies for Binary Mixtures of Cyclic Ethers with 1,2-Dichloroethane

Amireche, Fouzia, Belaribi, Farid Brahim, Mokbel, Ilham, Jose, Jacques

ABSTRACT