ABSTRACT

Isobaric vapor liquid equilibrium (VLE) data for the binary systems of {ethane-1,2-diol + butane-1,4-diol, ethane-1,2-diol + 2-(2-hydroxyethoxy)ethan-1-ol, butane-1,4-diol + 2-(2-hydroxyethoxy)ethan-1-ol, and 2-(2-hydroxyethoxy)ethan-1-ol + 2-[2-(2-hydroxyethoxy)ethoxy]ethanol} have been experimentally measured at 10.0 kPa, 20.0 kPa, and 40.0 kPa using a modified Rose Williams still in this study. The experimental data of the binary systems were well-correlated by universal quasichemical (UNIQUAC), nonrandom two-liquid (NRTL), and Wilson activity coefficient models at the three subatmospheric pressures, and the calculated values of the three models agreed well with the experimental data. Then the VLE data of the four binary systems were checked by the Herington area test and Van Ness point test, which showed thermodynamic consistency.

Compounds

#	Formula	Name
1	C2H6O2	1,2-ethanediol
2	C4H10O2	1,4-butanediol
3	C4H10O3	diethylene glycol
4	C6H14O4	triethylene glycol

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	Refractive index (Na D-line) ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid	Liquid	Standard Abbe refractometry	1
POMD	1	Vapor or sublimation pressure, kPa ; Liquid	Temperature, K; Liquid	Liquid Gas	Closed cell (Static) method	4
POMD	2	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid	Liquid	Vibrating tube method	1
POMD	2	Refractive index (Na D-line) ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid	Liquid	Standard Abbe refractometry	1
POMD	2	Vapor or sublimation pressure, kPa ; Liquid	Temperature, K; Liquid	Liquid Gas	Closed cell (Static) method	3
POMD	3	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid	Liquid	Vibrating tube method	1
POMD	3	Refractive index (Na D-line) ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid	Liquid	Standard Abbe refractometry	1
POMD	3	Vapor or sublimation pressure, kPa ; Liquid	Temperature, K; Liquid	Liquid Gas	Closed cell (Static) method	4
POMD	4	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid	Liquid	Vibrating tube method	1
POMD	4	Refractive index (Na D-line) ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid	Liquid	Standard Abbe refractometry	1
POMD	4	Vapor or sublimation pressure, kPa ; Liquid	Temperature, K; Liquid	Liquid Gas	Closed cell (Static) method	3
POMD	1 2	Boiling temperature at pressure P, K ; Liquid	Mole fraction - 1; Liquid Pressure, kPa; Liquid	Liquid Gas	Closed cell (Static) method	37
POMD	1 2	Mole fraction - 1 ; Gas	Mole fraction - 1; Liquid Pressure, kPa; Liquid	Gas Liquid	Chromatography	37
POMD	1 3	Boiling temperature at pressure P, K ; Liquid	Mole fraction - 1; Liquid Pressure, kPa; Liquid	Liquid Gas	Closed cell (Static) method	38
POMD	1 3	Mole fraction - 1 ; Gas	Mole fraction - 1; Liquid Pressure, kPa; Liquid	Gas Liquid	Chromatography	38
POMD	2 3	Boiling temperature at pressure P, K ; Liquid	Mole fraction - 2; Liquid Pressure, kPa; Liquid	Liquid Gas	Closed cell (Static) method	39
POMD	2 3	Mole fraction - 2 ; Gas	Mole fraction - 2; Liquid Pressure, kPa; Liquid	Gas Liquid	Chromatography	39
POMD	3 4	Boiling temperature at pressure P, K ; Liquid	Mole fraction - 3; Liquid Pressure, kPa; Liquid	Liquid Gas	Closed cell (Static) method	38
POMD	3 4	Mole fraction - 3 ; Gas	Mole fraction - 3; Liquid Pressure, kPa; Liquid	Gas Liquid	Chromatography	38

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

Isobaric Vapor-Liquid Equilibrium for Four Binary Systems of Ethane-1,2-diol, Butane-1,4-diol, 2-(2- Hydroxyethoxy)ethan-1-ol and 2-[2-(2- Hydroxyethoxy)ethoxy]ethanol at 10.0 kPa, 20.0 kPa and 40.0 kPa

Yang, C.[Changsheng], Sun, Y.[Yankai], Qin, Z.[Zhenli], Feng, Y.[Yang], Zhang, P.[Ping], Feng, X.[Xue]

ABSTRACT