ABSTRACT

Isothermal vapor-liquid equilibria (VLE) and excess molar enthalpies (HE) at 323.15 K were measured for the binary mixtures of dimethyl ether (DME) with C1 to C4 alkan-1-ols. The measured VLE and HE data were correlated well with GE model equations and Redlich-Kister polynomial, respectively. Additionally liquid-liquid equilibrium (LLE) for the ternary system of DME + methanol + water was determined at 313.15 K. The measured LLE data were compared with the correlated values by using NRTL and UNIQUAC models, and they showed good agreements.

Compounds

#	Formula	Name
1	H2O	water
2	C2H6O	dimethyl ether
3	CH4O	methanol
4	C2H6O	ethanol
5	C3H8O	propan-1-ol
6	C4H10O	butan-1-ol

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	2	Vapor or sublimation pressure, kPa ; Liquid		Temperature, K; Liquid	Liquid Gas	Closed cell (Static) method	3
POMD	3	Vapor or sublimation pressure, kPa ; Liquid	Temperature, K; Liquid		Liquid Gas	Closed cell (Static) method	1
POMD	4	Vapor or sublimation pressure, kPa ; Liquid	Temperature, K; Liquid		Liquid Gas	Closed cell (Static) method	1
POMD	5	Vapor or sublimation pressure, kPa ; Liquid	Temperature, K; Liquid		Liquid Gas	Closed cell (Static) method	1
POMD	6	Vapor or sublimation pressure, kPa ; Liquid	Temperature, K; Liquid		Liquid Gas	Closed cell (Static) method	1
POMD	3 2	Excess molar enthalpy (molar enthalpy of mixing), kJ/mol ; Liquid	Mole fraction - 2; Liquid	Temperature, K; Liquid	Liquid Gas	Flow calorimetry	19
POMD	3 2	Vapor or sublimation pressure, kPa ; Liquid	Mole fraction - 2; Liquid	Temperature, K; Liquid	Liquid Gas	Closed cell (Static) method	37
POMD	4 2	Excess molar enthalpy (molar enthalpy of mixing), kJ/mol ; Liquid	Mole fraction - 2; Liquid	Temperature, K; Liquid	Liquid Gas	Flow calorimetry	19
POMD	4 2	Vapor or sublimation pressure, kPa ; Liquid	Mole fraction - 2; Liquid	Temperature, K; Liquid	Liquid Gas	Closed cell (Static) method	37
POMD	5 2	Excess molar enthalpy (molar enthalpy of mixing), kJ/mol ; Liquid	Mole fraction - 2; Liquid	Temperature, K; Liquid	Liquid Gas	Flow calorimetry	19
POMD	5 2	Vapor or sublimation pressure, kPa ; Liquid	Mole fraction - 2; Liquid	Temperature, K; Liquid	Liquid Gas	Closed cell (Static) method	37
POMD	6 2	Excess molar enthalpy (molar enthalpy of mixing), kJ/mol ; Liquid	Mole fraction - 2; Liquid	Temperature, K; Liquid	Liquid Gas	Flow calorimetry	19
POMD	6 2	Vapor or sublimation pressure, kPa ; Liquid	Mole fraction - 2; Liquid	Temperature, K; Liquid	Liquid Gas	Closed cell (Static) method	39
POMD	2 1	Mole fraction - 2 ; Liquid mixture 1	Temperature, K; Liquid mixture 1 Pressure, kPa; Liquid mixture 1		Liquid mixture 1 Liquid mixture 2	CHROM:UFactor:6	1
POMD	2 1	Mole fraction - 2 ; Liquid mixture 2	Temperature, K; Liquid mixture 1 Pressure, kPa; Liquid mixture 1		Liquid mixture 2 Liquid mixture 1	CHROM:UFactor:6	1
POMD	3 2 1	Mole fraction - 3 ; Liquid mixture 1 Mole fraction - 3 ; Liquid mixture 2 Mole fraction - 2 ; Liquid mixture 2	Mole fraction - 2; Liquid mixture 1	Temperature, K; Liquid mixture 1 Pressure, kPa; Liquid mixture 1	Liquid mixture 1 Liquid mixture 2	CHROM:UFactor:6 CHROM:UFactor:6 CHROM:UFactor:6	10

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

Vapor-Liquid Equilibria and HE for Binary Systems of Dimethyl Ether (DME) with C1-C4 Alkan-1-ols at 323.15 K and Liquid-Liquid Equilibria for Ternary System of DME + Methanol + Water at 313.15 K

Park, S.-J.[So-Jin], Han, K. J.[Kyu-Jin], Gmehling, J.[Jurgen]

ABSTRACT