ABSTRACT

Molar excess enthalpies of four binary systems for 2,4-pentanedione + (methanol, + ethanol, + 1-propanol, and + 2-propanol) at T ) (298.15, 313.15, and 328.15) K and p ) (0.1 and 10.0) MPa were determined by a high-pressure flow-mixing isothermal microcalorimeter. The molar excess enthalpies increased with an increase in the temperature and the molecular size of alcohols and decreased slightly with an increase in pressure. The experimental data were correlated by the Redlich Kister equation and three local composition models (Wilson, NRTL, and UNIQUAC).

Compounds

#	Formula	Name
1	C5H8O2	2,4-pentanedione
2	CH4O	methanol
3	C2H6O	ethanol
4	C3H8O	propan-1-ol
5	C3H8O	propan-2-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	1	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Pycnometric method	3
POMD	2 1	Excess molar enthalpy (molar enthalpy of mixing), kJ/mol ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid Mole fraction - 1; Liquid		Liquid	Flow calorimetry	114
POMD	3 1	Excess molar enthalpy (molar enthalpy of mixing), kJ/mol ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid Mole fraction - 1; Liquid		Liquid	Flow calorimetry	120
POMD	4 1	Excess molar enthalpy (molar enthalpy of mixing), kJ/mol ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid Mole fraction - 1; Liquid		Liquid	Flow calorimetry	84
POMD	5 1	Excess molar enthalpy (molar enthalpy of mixing), kJ/mol ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid Mole fraction - 1; Liquid		Liquid	Flow calorimetry	84

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

Excess Enthalpies of 2,4-Pentanedione + (Methanol, + Ethanol, + 1-Propanol, and + 2-Propanol) at T = (298.15, 313.15, and 328.15) K and p = (0.1 and 10.0) MPa

Li, S.[Shengying], Yan, W.[Weidong], Dong, H.[Hong]

ABSTRACT