ABSTRACT

An ebulliometric method was examined for determining the vapor-liquid equilibrium on binary systems consisting of close-boiling components. The boiling points of five binary systems were measured (ethylbenzene and m-xylene, o-chlorotoluene and p-chlorotoluene, benzene and cyclohexane, carbon tetrachloride and ethylacetate, and heptane and methylcyclohexane) at the pressure of 40.00-93.32 kPa. The vapor-liquid equilibria were determined by theWilson equation from the experimental boiling points. In addition, the infinite dilution activity coefficients were calculated from the boiling point and their thermodynamic consistency was checked on the basis of the Gibbs-Helmholtz equation.

Compounds

#	Formula	Name
1	C8H10	ethylbenzene
2	C8H10	1,3-dimethylbenzene
3	C7H7Cl	2-chlorotoluene
4	C7H7Cl	4-chlorotoluene
5	C6H6	benzene
6	C6H12	cyclohexane
7	CCl4	tetrachloromethane
8	C4H8O2	ethyl acetate
9	C7H16	heptane
10	C7H14	methylcyclohexane

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	Vapor or sublimation pressure, kPa ; Liquid	Temperature, K; Liquid	Liquid Gas	Ebulliometric method (Recirculating still)	5
POMD	2	Vapor or sublimation pressure, kPa ; Liquid	Temperature, K; Liquid	Liquid Gas	Ebulliometric method (Recirculating still)	5
POMD	3	Vapor or sublimation pressure, kPa ; Liquid	Temperature, K; Liquid	Liquid Gas	Ebulliometric method (Recirculating still)	5
POMD	4	Vapor or sublimation pressure, kPa ; Liquid	Temperature, K; Liquid	Liquid Gas	Ebulliometric method (Recirculating still)	5
POMD	5	Vapor or sublimation pressure, kPa ; Liquid	Temperature, K; Liquid	Liquid Gas	Ebulliometric method (Recirculating still)	5
POMD	6	Vapor or sublimation pressure, kPa ; Liquid	Temperature, K; Liquid	Liquid Gas	Ebulliometric method (Recirculating still)	5
POMD	7	Vapor or sublimation pressure, kPa ; Liquid	Temperature, K; Liquid	Liquid Gas	Ebulliometric method (Recirculating still)	5
POMD	8	Vapor or sublimation pressure, kPa ; Liquid	Temperature, K; Liquid	Liquid Gas	Ebulliometric method (Recirculating still)	5
POMD	9	Vapor or sublimation pressure, kPa ; Liquid	Temperature, K; Liquid	Liquid Gas	Ebulliometric method (Recirculating still)	5
POMD	10	Vapor or sublimation pressure, kPa ; Liquid	Temperature, K; Liquid	Liquid Gas	Ebulliometric method (Recirculating still)	5
POMD	1 2	Vapor or sublimation pressure, kPa ; Liquid	Mole fraction - 1; Liquid Temperature, K; Liquid	Liquid Gas	EBULLIO:UFactor:0.5	45
POMD	3 4	Vapor or sublimation pressure, kPa ; Liquid	Mole fraction - 3; Liquid Temperature, K; Liquid	Liquid Gas	EBULLIO:UFactor:0.5	63
POMD	5 6	Vapor or sublimation pressure, kPa ; Liquid	Mole fraction - 5; Liquid Temperature, K; Liquid	Liquid Gas	EBULLIO:UFactor:0.5	115
POMD	7 8	Vapor or sublimation pressure, kPa ; Liquid	Mole fraction - 7; Liquid Temperature, K; Liquid	Liquid Gas	EBULLIO:UFactor:0.5	95
POMD	10 9	Vapor or sublimation pressure, kPa ; Liquid	Mole fraction - 9; Liquid Temperature, K; Liquid	Liquid Gas	EBULLIO:UFactor:0.5	95

Thermodynamics Research Center / ThermoML | Fluid Phase Equilibria

Determination and correlation of vapor liquid equilibrium for binary systems consisting of close-boiling components

Uno, S.[Shigemichi], Kurihara, K.[Kiyofumi], Ochi, K.[Kenji], Kojima, K.[Kazuo]

ABSTRACT