ABSTRACT

The density and speed of sound ternary {o-toluidine (i) + tetrahydropyran (j) + alpha-, beta-, or gamma-picoline (k)} mixtures have been measured over the entire composition range at T = (298.15, 303.15, and 308.15) K. The excess molar volume and excess isentropic compressibility values of the mixtures have been predicted by using the experimental results. The observed thermodynamic properties have been fitted to Redlich-Kister equation to determine ternary adjustable parameters and standard deviations. The excess molar volume and excess isentropic compressibility values have also been analyzed in terms of (1) Graph theory and (2) Prigogine-Flory-Patterson theory (PFP). It has been observed that excess molar volume and excess isentropic compressibility data determined by Graph theory compare well with experimental values.

Compounds

#	Formula	Name
1	C7H9N	2-methylaniline
2	C5H10O	tetrahydropyran
3	C6H7N	2-methylpyridine
4	C6H7N	3-methylpyridine
5	C6H7N	4-methylpyridine

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	Speed of sound, m/s ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Sing-around technique in a fixed-path interferometer	1
POMD	2	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Vibrating tube method	1
POMD	2	Speed of sound, m/s ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Sing-around technique in a fixed-path interferometer	1
POMD	3	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Vibrating tube method	1
POMD	3	Speed of sound, m/s ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Sing-around technique in a fixed-path interferometer	1
POMD	4	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Vibrating tube method	1
POMD	4	Speed of sound, m/s ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Sing-around technique in a fixed-path interferometer	1
POMD	5	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Vibrating tube method	1
POMD	5	Speed of sound, m/s ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Sing-around technique in a fixed-path interferometer	1
POMD	1 3 2	Speed of sound, m/s ; Liquid	Temperature, K; Liquid Mole fraction - 1; Liquid Mole fraction - 2; Liquid	Pressure, kPa; Liquid	Liquid	Sing-around technique in a fixed-path interferometer	90
POMD	1 3 2	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Mole fraction - 1; Liquid Mole fraction - 2; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	90
POMD	1 3 2	Excess molar volume, m3/mol ; Liquid	Temperature, K; Liquid Mole fraction - 1; Liquid Mole fraction - 2; Liquid	Pressure, kPa; Liquid	Liquid	Calculated with densities of this investigation	90
POMD	1 4 2	Speed of sound, m/s ; Liquid	Temperature, K; Liquid Mole fraction - 1; Liquid Mole fraction - 2; Liquid	Pressure, kPa; Liquid	Liquid	Sing-around technique in a fixed-path interferometer	90
POMD	1 4 2	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Mole fraction - 1; Liquid Mole fraction - 2; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	90
POMD	1 4 2	Excess molar volume, m3/mol ; Liquid	Temperature, K; Liquid Mole fraction - 1; Liquid Mole fraction - 2; Liquid	Pressure, kPa; Liquid	Liquid	Calculated with densities of this investigation	90
POMD	1 5 2	Speed of sound, m/s ; Liquid	Temperature, K; Liquid Mole fraction - 1; Liquid Mole fraction - 2; Liquid	Pressure, kPa; Liquid	Liquid	Sing-around technique in a fixed-path interferometer	90
POMD	1 5 2	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Mole fraction - 1; Liquid Mole fraction - 2; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	90
POMD	1 5 2	Excess molar volume, m3/mol ; Liquid	Temperature, K; Liquid Mole fraction - 1; Liquid Mole fraction - 2; Liquid	Pressure, kPa; Liquid	Liquid	Calculated with densities of this investigation	90

Thermodynamics Research Center / ThermoML | Journal of Chemical Thermodynamics

Thermodynamic and topological investigations of ternary mixtures with o-toluidine, tetrahydropyran, and picolines: Excess molar volume and excess isentropic compressibility

Hooda, N.[Neeti], Jangra, S. K., Sharma, D.[Dimple], Sharma, V. K.

ABSTRACT