ABSTRACT

Isothermal vapor-liquid equilibria (VLE) and excess molar enthalpies (HE) for the binary systems of dimethyl ether (DME) with n-decane, n-dodecane, 1-octene, 1-decene, benzene, toluene, and water were measured at 323.15 K with a computer-driven static apparatus and an isothermal flow calorimeter, respectively. None of the measured binary systems show azeotropic behavior at this temperature. The system DME + water shows a miscibility gap. The experimental VLE and HE data were correlated with different GE models and the Redlich-Kister polynomial

Compounds

#	Formula	Name
1	C10H20	1-decene
2	C2H6O	dimethyl ether
3	C10H22	decane
4	C12H26	dodecane
5	C8H16	oct-1-ene
6	C6H6	benzene
7	C7H8	toluene
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	2	Vapor or sublimation pressure, kPa ; Liquid		Temperature, K; Liquid	Liquid Gas	mass and volume balance equations	6
POMD	3	Vapor or sublimation pressure, kPa ; Liquid	Temperature, K; Liquid		Liquid Gas	mass and volume balance equations	1
POMD	4	Vapor or sublimation pressure, kPa ; Liquid	Temperature, K; Liquid		Liquid Gas	mass and volume balance equations	1
POMD	5	Vapor or sublimation pressure, kPa ; Liquid	Temperature, K; Liquid		Liquid Gas	mass and volume balance equations	1
POMD	6	Vapor or sublimation pressure, kPa ; Liquid	Temperature, K; Liquid		Liquid Gas	mass and volume balance equations	1
POMD	7	Vapor or sublimation pressure, kPa ; Liquid	Temperature, K; Liquid		Liquid Gas	mass and volume balance equations	1
POMD	8	Vapor or sublimation pressure, kPa ; Liquid	Temperature, K; Liquid		Liquid Gas	mass and volume balance equations	1
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	Mole fraction - 2 ; Liquid	Pressure, kPa; Liquid	Temperature, K; Liquid	Liquid Gas	mass and volume balance equations	36
POMD	2 3	Excess molar enthalpy (molar enthalpy of mixing), kJ/mol ; Liquid	Mole fraction - 2; Liquid	Temperature, K; Liquid	Liquid Gas	Flow calorimetry	19
POMD	2 3	Mole fraction - 2 ; Liquid	Pressure, kPa; Liquid	Temperature, K; Liquid	Liquid Gas	mass and volume balance equations	39
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	Mole fraction - 2 ; Liquid	Pressure, kPa; Liquid	Temperature, K; Liquid	Liquid Gas	mass and volume balance equations	38
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	Mole fraction - 2 ; Liquid	Pressure, kPa; Liquid	Temperature, K; Liquid	Liquid Gas	mass and volume balance equations	36
POMD	7 2	Excess molar enthalpy (molar enthalpy of mixing), kJ/mol ; Liquid	Mole fraction - 2; Liquid	Temperature, K; Liquid	Liquid Gas	Flow calorimetry	19
POMD	7 2	Mole fraction - 2 ; Liquid	Pressure, kPa; Liquid	Temperature, K; Liquid	Liquid Gas	mass and volume balance equations	37
POMD	2 8	Excess molar enthalpy (molar enthalpy of mixing), kJ/mol ; Liquid	Mole fraction - 2; Liquid	Temperature, K; Liquid	Liquid Gas	Flow calorimetry	15
POMD	2 8	Mole fraction - 2 ; Liquid	Pressure, kPa; Liquid	Temperature, K; Liquid	Liquid Gas	mass and volume balance equations	43
POMD	2 8	Mole fraction - 2 ; Liquid mixture 1	Temperature, K; Liquid mixture 1 Pressure, kPa; Liquid mixture 1		Liquid mixture 1 Liquid mixture 2	Derived from Hex measurements	1
POMD	2 8	Mole fraction - 2 ; Liquid mixture 2	Temperature, K; Liquid mixture 2 Pressure, kPa; Liquid mixture 2		Liquid mixture 2 Liquid mixture 1	Derived from Hex measurements	1
POMD	2 1	Excess molar enthalpy (molar enthalpy of mixing), kJ/mol ; Liquid	Mole fraction - 2; Liquid	Temperature, K; Liquid	Liquid Gas	Flow calorimetry	19

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

Isothermal Phase Equilibria and Excess Molar Enthalpies for Binary Systems with Dimethyl Ether at 323.15 K

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

ABSTRACT