ABSTRACT

The saturation pressures of propylene glycol at (393 to 423) K, 2-(2-hexyloxyetoxy)ethanol at (402 to 423) K, 1-methyl-2-pyrrolidone at (352 to 378) K, and 1-methoxypropan-2-ol at (347 to 378) K were measured by an ebulliometric method. The vapor-liquid equilibrium (P, T, x, y) was measured by an ebulliometric method for the system propylene glycol + 2-(2-hexyloxyethoxy)ethanol at (403.15, 413.15, and 423.15) K and for the system 1-methyl-2-pyrrolidone + 1-methoxypropan-2-ol at (353.15, 363.15, and 373.15) K. The experimental vapor pressures were correlated with Antoine and association + equation of state (AEOS) equations, while the VLE was correlated with the AEOS equation of state for all the temperature intervals and with equations representing activity coefficients at specific particular isotherms.

Compounds

#	Formula	Name
1	C3H8O2	1,2-propanediol
2	C10H22O3	2-(2-hexyloxyethoxy)ethanol
3	C5H9NO	N-methylpyrrolidone
4	C4H10O2	1-methoxy-2-propanol

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	EBULLIO:UFactor:8	11
POMD	2	Vapor or sublimation pressure, kPa ; Liquid	Temperature, K; Liquid	Liquid Gas	EBULLIO:UFactor:4	9
POMD	3	Vapor or sublimation pressure, kPa ; Liquid	Temperature, K; Liquid	Liquid Gas	EBULLIO:UFactor:4	10
POMD	4	Vapor or sublimation pressure, kPa ; Liquid	Temperature, K; Liquid	Liquid Gas	EBULLIO:UFactor:4	10
POMD	1 2	Vapor or sublimation pressure, kPa ; Liquid	Mole fraction - 1; Gas Temperature, K; Liquid	Liquid Gas	EBULLIO:UFactor:8	45
POMD	1 2	Mole fraction - 1 ; Liquid	Mole fraction - 1; Gas Temperature, K; Liquid	Liquid Gas	Chromatography	45
POMD	4 3	Vapor or sublimation pressure, kPa ; Liquid	Mole fraction - 3; Liquid Temperature, K; Liquid	Liquid Gas	EBULLIO:UFactor:4	51
POMD	4 3	Mole fraction - 3 ; Gas	Mole fraction - 3; Liquid Temperature, K; Liquid	Gas Liquid	Chromatography	51

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

Vapor-Liquid Equilibrium for Propylene Glycol + 2-(2-Hexyloxyethoxy)ethanol and 1-Methyl-2-pyrrolidone + 1-Methoxypropan-2-ol

Chylinski, K.[Krzysztof], Fras, Z.[Zbigniew], Malanowski, S. K.[Stanislaw]

ABSTRACT