ABSTRACT

Phase equilibria are reported for the following four systems: 1,2-dichloroethane (CASRN 107-06-2) + trans- 1,2-dichloroethylene (CASRN 156-60-5) at 30 deg C and 80 deg C; 1-octene (CASRN 111-66-0) + 2-methyl thiophene (CASRN 554-14-3) at 100 deg C and 140 deg C; 2-ethyl thiophene (CASRN 872-55-9) + 2,2,4-trimethylpentane (CASRN 540-84-1) at 100 deg C and 140 deg C; cyclopropanecarbonitrile (CASRN 5500-21-0) + water (CASRN 7732-18-5) at 100 deg C and 135 deg C. The system pressure and temperature were measured at several charge compositions along a given isotherm for each system. Equilibrium vapor- and liquid-phase compositions were derived from the measured PTx data using the Soave equation of state to represent the vapor phase and the NRTL activity coefficient model to represent the liquid phase. Two liquid phases are present with the cyclopropanecarbonitrile + water system at 100 deg C. Vapor-liquid-liquid equilibrium data were measured at this condition. Multiple samples were withdrawn and analyzed from each equilibrium phase. A second liquid phase is not present with this system at 135 deg C. PTxy measurements were performed at this temperature in order to better define the azeotropic composition. Multiple samples were withdrawn and analyzed from the equilibrium vapor and liquid phases at three liquid compositions near the azeotrope.

Compounds

#	Formula	Name
1	C2H4Cl2	1,2-dichloroethane
2	C2H2Cl2	(E)-1,2-dichloroethene
3	C8H16	oct-1-ene
4	C5H6S	2-methylthiophene
5	C6H8S	2-ethylthiophene
6	C8H18	2,2,4-trimethylpentane
7	C4H5N	cyclopropanecarbonitrile
8	H2O	water

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	Vapor or sublimation pressure, kPa ; Liquid	Temperature, K; Liquid		Liquid Gas	Closed cell (Static) method	2
POMD	2	Vapor or sublimation pressure, kPa ; Liquid	Temperature, K; Liquid		Liquid Gas	Closed cell (Static) method	2
POMD	3	Vapor or sublimation pressure, kPa ; Liquid	Temperature, K; Liquid		Liquid Gas	Closed cell (Static) method	2
POMD	4	Vapor or sublimation pressure, kPa ; Liquid	Temperature, K; Liquid		Liquid Gas	Closed cell (Static) method	2
POMD	5	Vapor or sublimation pressure, kPa ; Liquid	Temperature, K; Liquid		Liquid Gas	Closed cell (Static) method	2
POMD	6	Vapor or sublimation pressure, kPa ; Liquid	Temperature, K; Liquid		Liquid Gas	Closed cell (Static) method	2
POMD	7	Vapor or sublimation pressure, kPa ; Liquid	Temperature, K; Liquid		Liquid Gas	CCELL::UFactor:2	2
POMD	8	Vapor or sublimation pressure, kPa ; Liquid	Temperature, K; Liquid		Liquid Gas	CCELL::UFactor:2	2
POMD	1 2	Vapor or sublimation pressure, kPa ; Liquid	Temperature, K; Liquid Mole fraction - 1; Liquid		Liquid Gas	Closed cell (Static) method	41
POMD	3 4	Vapor or sublimation pressure, kPa ; Liquid	Temperature, K; Liquid Mole fraction - 3; Liquid		Liquid Gas	Closed cell (Static) method	34
POMD	6 5	Vapor or sublimation pressure, kPa ; Liquid	Temperature, K; Liquid Mole fraction - 5; Liquid		Liquid Gas	Closed cell (Static) method	40
POMD	7 8	Vapor or sublimation pressure, kPa ; Liquid mixture 1	Temperature, K; Liquid mixture 1		Liquid mixture 1 Liquid mixture 2 Gas	Closed cell (Static) method	1
POMD	7 8	Mole fraction - 7 ; Gas	Temperature, K; Gas		Gas Liquid mixture 1 Liquid mixture 2	Chromatography and Karl Fischer titration	1
POMD	7 8	Mole fraction - 7 ; Liquid mixture 1	Temperature, K; Liquid mixture 1		Liquid mixture 1 Liquid mixture 2 Gas	Chromatography	1
POMD	7 8	Mole fraction - 7 ; Liquid mixture 2	Temperature, K; Liquid mixture 2		Liquid mixture 2 Liquid mixture 1 Gas	Chromatography	1
POMD	7 8	Vapor or sublimation pressure, kPa ; Liquid	Temperature, K; Liquid Mole fraction - 7; Liquid		Liquid Gas	CCELL:UFactor:2	114
POMD	7 8	Vapor or sublimation pressure, kPa ; Liquid	Mole fraction - 7; Liquid	Temperature, K; Liquid	Liquid Gas	Closed cell (Static) method	3
POMD	7 8	Mole fraction - 7 ; Gas	Mole fraction - 7; Liquid	Temperature, K; Gas	Gas Liquid	Chromatography	3

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

Phase Equilibria on Four Binary Systems: 1,2-Dichloroethane + trans-1,2-Dichloroethylene, 1-Octene + 2-Methyl Thiophene, 2-Ethyl Thiophene + 2,2,4-Trimethylpentane, and Cyclopropanecarbonitrile + Water

Giles, N. F.[Neil F.], Wilson, G. M.[Grant M.]

ABSTRACT