ABSTRACT

Molar excess volumes, Vijk E , and speeds of sound, Uijk, of o-toluidine (i) + toluene (j) + o- or p-xylene (k) ternary mixtures and speeds of sound, Uij, of o-toluidine (i) + toluene or o- or p-xylene (j) binary mixtures have been determined as a function of composition at 308.15 K. Speeds of sound data have been utilized to evaluate excess isentropic compressibilities for binary (i + j) and ternary (i + j + k) mixtures. Molar excess volumes, Vijk E , and excess isentropic compressiblities, (eS E )ijk data have been fitted to the Redlich-Kister equation to calculate ternary adjustable parameters and standard deviations. Flory theory for binary mixtures has been extended to predict Vijk E and (eS E)ijk for the studied ternary mixtures. It has been observed that theory correctly predicts the sign of Vijk E values for o-toluidine (i) + toluene (j) + o-xylene (k) and (eS E)ijk values for o-toluidine (i) + toluene (j) + p-xylene (k) ternary mixtures.

Compounds

#	Formula	Name
1	C7H9N	2-methylaniline
2	C7H8	toluene
3	C8H10	1,2-dimethylbenzene
4	C8H10	1,4-dimethylbenzene

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	1
POMD	1	Speed of sound, m/s ; Liquid	Pressure, kPa; Liquid Temperature, K; 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	Pycnometric method	1
POMD	2	Speed of sound, m/s ; Liquid	Pressure, kPa; Liquid Temperature, K; 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	Pycnometric method	1
POMD	3	Speed of sound, m/s ; Liquid	Pressure, kPa; Liquid Temperature, K; 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	Pycnometric method	1
POMD	4	Speed of sound, m/s ; Liquid	Pressure, kPa; Liquid Temperature, K; Liquid		Liquid	Sing-around technique in a fixed-path interferometer	1
POMD	1 2	Speed of sound, m/s ; Liquid	Mole fraction - 1; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid	Liquid	Sing-around technique in a fixed-path interferometer	14
POMD	3 1	Speed of sound, m/s ; Liquid	Mole fraction - 1; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid	Liquid	Sing-around technique in a fixed-path interferometer	14
POMD	1 4	Speed of sound, m/s ; Liquid	Mole fraction - 1; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid	Liquid	Sing-around technique in a fixed-path interferometer	14
POMD	3 1 2	Speed of sound, m/s ; Liquid	Mole fraction - 1; Liquid Mole fraction - 2; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid	Liquid	Sing-around technique in a fixed-path interferometer	14
POMD	3 1 2	Excess molar volume, m3/mol ; Liquid	Mole fraction - 1; Liquid Mole fraction - 2; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid	Liquid	Direct dilatometry	13
POMD	1 4 2	Speed of sound, m/s ; Liquid	Mole fraction - 1; Liquid Mole fraction - 2; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid	Liquid	Sing-around technique in a fixed-path interferometer	13
POMD	1 4 2	Excess molar volume, m3/mol ; Liquid	Mole fraction - 1; Liquid Mole fraction - 2; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid	Liquid	Direct dilatometry	12

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

Molar Excess Volumes and Excess Isentropic Compressibilities of Ternary Mixtures of o-Toluidine

Dimple, Yadav, J. S., Singh, K. C., Sharma, V. K.

ABSTRACT