ABSTRACT

Molar excess heat capacities, CpE, are reported for the benzylamine + heptane mixture at 293.15 K and for methanol, 1-propanol or 1-pentanol + benzylamine systems at (293.15-308.15) K. These values were determined from isobaric molar heat capacities obtained with a Setaram Micro DSC II microcalorimeter using a scanning method. The heptane solution shows a w-shaped CpE concentration dependence, which reveals the existence of strong non-random effects. Systems including 1-alkanols are characterized by large and positive CpE values. This remarks that selfassociation and/or solvation effects are predominant in such solutions. On the other hand, their CpE curves are skewed towards higher mole fractions of the alcohol, which might be ascribed to the existence of more interactions between unlike molecules in that region.

Compounds

#	Formula	Name
1	C7H9N	benzylamine
2	CH4O	methanol
3	C5H12O	pentan-1-ol
4	C3H8O	propan-1-ol
5	C7H16	heptane

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	Vibrating tube method	1
POMD	1	Molar heat capacity at constant pressure, J/K/mol ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Small sample (50 mg) DSC	1
POMD	2	Molar heat capacity at constant pressure, J/K/mol ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Small sample (50 mg) DSC	1
POMD	3	Molar heat capacity at constant pressure, J/K/mol ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Small sample (50 mg) DSC	1
POMD	4	Molar heat capacity at constant pressure, J/K/mol ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Small sample (50 mg) DSC	1
POMD	5	Molar heat capacity at constant pressure, J/K/mol ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Small sample (50 mg) DSC	1
POMD	1 5	Excess molar heat capacity, J/K/mol ; Liquid	Mole fraction - 1; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid	Liquid	Small sample (50 mg) DSC	14
POMD	2 1	Excess molar heat capacity, J/K/mol ; Liquid	Temperature, K; Liquid Mole fraction - 2; Liquid	Pressure, kPa; Liquid	Liquid	Small sample (50 mg) DSC	42
POMD	4 1	Excess molar heat capacity, J/K/mol ; Liquid	Temperature, K; Liquid Mole fraction - 4; Liquid	Pressure, kPa; Liquid	Liquid	Small sample (50 mg) DSC	39
POMD	3 1	Excess molar heat capacity, J/K/mol ; Liquid	Temperature, K; Liquid Mole fraction - 3; Liquid	Pressure, kPa; Liquid	Liquid	Small sample (50 mg) DSC	39

Thermodynamics Research Center / ThermoML | Thermochimica Acta

THERMODYNAMICS OF MIXTURES CONTAINING AMINES. XIV. CpEm OF BENZYLAMINE WITH HEPTANE AT 293.15 K OR WITH METHANOL, 1-PROPANOL OR 1-PENTANOL AT (293.15-308.15) K

Paramo, R.[Ricardo], Alonso, V.[Victor], Gonzalez, J. A.[Juan Antonio], de la Fuente, I. G.[Isaias Garcia], Casanova, C.[Carlos], Cobos, J. C.[Jose Carlos]

ABSTRACT