ABSTRACT

Vapor-liquid equilibria are reported for the following four systems: 2-phenylpropionaldehyde + phenol at 100 deg C and 150 deg C; propylene glycol monomethyl ether + nitroethane at 40 deg C and 80 deg C; dimethyl ether + propylene at -20 deg C and 20 deg C; and n-butyric acid + propionic acid at 100 deg C and 140 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 Wilson or three-parameter Redlich-Kister activity coefficient model to represent the liquid phase. Vapor-phase dimerization of the carboxylic acids was accounted for in reducing the n-butyric acid + propionic acid PTx data. A single Txy data point was also measured for this system at each temperature by withdrawing and analyzing multiple samples from the equilibrium vapor and liquid phases.

Compounds

#	Formula	Name
1	C9H10O	2-phenylpropanal
2	C6H6O	phenol
3	C4H10O2	1-methoxy-2-propanol
4	C2H5NO2	nitroethane
5	C2H6O	dimethyl ether
6	C3H6	propene
7	C4H8O2	butanoic acid
8	C3H6O2	propanoic acid

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)	2
POMD	2	Vapor or sublimation pressure, kPa ; Liquid	Temperature, K; Liquid	Liquid Gas	Ebulliometric method (Recirculating still)	2
POMD	3	Vapor or sublimation pressure, kPa ; Liquid	Temperature, K; Liquid	Liquid Gas	Ebulliometric method (Recirculating still)	2
POMD	4	Vapor or sublimation pressure, kPa ; Liquid	Temperature, K; Liquid	Liquid Gas	Ebulliometric method (Recirculating still)	2
POMD	5	Vapor or sublimation pressure, kPa ; Liquid	Temperature, K; Liquid	Liquid Gas	Ebulliometric method (Recirculating still)	2
POMD	6	Vapor or sublimation pressure, kPa ; Liquid	Temperature, K; Liquid	Liquid Gas	Ebulliometric method (Recirculating still)	2
POMD	7	Vapor or sublimation pressure, kPa ; Liquid	Temperature, K; Liquid	Liquid Gas	Ebulliometric method (Recirculating still)	2
POMD	8	Vapor or sublimation pressure, kPa ; Liquid	Temperature, K; Liquid	Liquid Gas	Ebulliometric method (Recirculating still)	2
POMD	1 2	Vapor or sublimation pressure, kPa ; Liquid	Temperature, K; Liquid Mole fraction - 1; Liquid	Liquid Gas	Ebulliometric method (Recirculating still)	31
POMD	4 3	Vapor or sublimation pressure, kPa ; Liquid	Temperature, K; Liquid Mole fraction - 3; Liquid	Liquid Gas	Ebulliometric method (Recirculating still)	36
POMD	6 5	Vapor or sublimation pressure, kPa ; Liquid	Temperature, K; Liquid Mole fraction - 5; Liquid	Liquid Gas	Ebulliometric method (Recirculating still)	32
POMD	8 7	Vapor or sublimation pressure, kPa ; Liquid	Temperature, K; Liquid Mole fraction - 7; Liquid	Liquid Gas	Ebulliometric method (Recirculating still)	31
POMD	8 7	Mole fraction - 7 ; Gas	Temperature, K; Gas Mole fraction - 7; Liquid	Gas Liquid	Chromatography	2

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

Vapor-Liquid Equilibria on Four Binary Systems: 2-Phenylpropionaldehyde + Phenol, Propylene Glycol Monomethyl Ether + Nitroethane, Dimethyl Ether + Propylene, and N-Butyric Acid + Propionic Acid

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

ABSTRACT