ABSTRACT

The vapour pressures of binary mixtures 2-methylpyridine with cyclohexane, heptane or toluene were measured by a static method in the range from 263.15 to 353.15 K. The pure components vapour pressures data and those of the mixtures were correlated with the Antoine equation. The excess enthalpies were measured at 303.15 K, by means of an isothermal calorimeter (C80 SETARAM model). The molar excess Gibbs energies, calculated from the vapour liquid equilibrium data and the molar excess enthalpies compared satisfactorily with group contribution model (DISQUAC).

Compounds

#	Formula	Name
1	C5H6N2	2-methylpyrazine
2	C7H8	toluene
3	C7H16	heptane
4	C6H12	cyclohexane

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	1	Vapor or sublimation pressure, kPa ; Liquid	Temperature, K; Liquid		Liquid Gas	Closed cell (Static) method	11
POMD	2	Vapor or sublimation pressure, kPa ; Liquid	Temperature, K; Liquid		Liquid Gas	Closed cell (Static) method	13
POMD	3	Vapor or sublimation pressure, kPa ; Liquid	Temperature, K; Liquid		Liquid Gas	Closed cell (Static) method	10
POMD	4	Vapor or sublimation pressure, kPa ; Liquid	Temperature, K; Liquid		Liquid Gas	Closed cell (Static) method	10
POMD	2 1	Excess molar enthalpy (molar enthalpy of mixing), kJ/mol ; Liquid	Mole fraction - 1; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid	Liquid	Calvet calorimetry	8
POMD	2 1	Mole fraction - 1 ; Gas	Mole fraction - 1; Liquid Temperature, K; Liquid		Gas Liquid	Chromatography	66
POMD	2 1	Vapor or sublimation pressure, kPa ; Liquid	Mole fraction - 1; Liquid Temperature, K; Liquid		Liquid Gas	Closed cell (Static) method	66
POMD	1 4	Excess molar enthalpy (molar enthalpy of mixing), kJ/mol ; Liquid	Mole fraction - 1; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid	Liquid	Calvet calorimetry	9
POMD	1 4	Mole fraction - 1 ; Gas	Mole fraction - 1; Liquid Temperature, K; Liquid		Gas Liquid	Chromatography	56
POMD	1 4	Vapor or sublimation pressure, kPa ; Liquid	Mole fraction - 1; Liquid Temperature, K; Liquid		Liquid Gas	Closed cell (Static) method	56
POMD	1 3	Excess molar enthalpy (molar enthalpy of mixing), kJ/mol ; Liquid	Mole fraction - 1; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid	Liquid	Calvet calorimetry	10
POMD	1 3	Mole fraction - 1 ; Gas	Mole fraction - 1; Liquid Temperature, K; Liquid		Gas Liquid	Chromatography	77
POMD	1 3	Vapor or sublimation pressure, kPa ; Liquid	Mole fraction - 1; Liquid Temperature, K; Liquid		Liquid Gas	Closed cell (Static) method	77

Thermodynamics Research Center / ThermoML | Fluid Phase Equilibria

Isothermal vapor- liquid equilibria and excess molar enthalpy of 2-methylpyrazine (2MP) containing binary mixtures. Comparison with DISQUAC predictions

Ben-makhlouf-Hakem, H.[Hamama], Ait-Kaci, A.[Ahmed], Jose, J.[Jacques]

ABSTRACT