ABSTRACT

The present investigation deals with the possible molecular interactions (such as intra and inter) between the component molecules in liquid mixtures by the addition of the third component (acetonitrile) to the ([C4mim][SCN] + acetic or propionic acid) binary system. Therefore, we present the excess molar volume (V123E), isentropic compressibility (ks) and deviation in isentropic compressibility (deltaks123) for the ternary systems {[C4mim][SCN] + acetic or propionic acid + acetonitrile} at temperature range of (293.15-313.15) K and at a pressure of 0.1 MPa with aid of density (rho), speed of sound (u) measurements. Satisfactory correlation for the excess properties have been obtained using the Cibulka equation with the aid of Redlich-Kister parameters fitted to the corresponding binary systems obtained from literature data. Furthermore, the results obtained from the present study were discussed in terms of molecular interactions and effect of temperature on interactions.

Compounds

#	Formula	Name
1	C9H15N3S	1-butyl-3-methylimidazolium thiocyanate
2	C2H4O2	acetic acid
3	C2H3N	acetonitrile
4	C3H6O2	propanoic acid

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 2 3	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Mole fraction - 1; Liquid Mole fraction - 2; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	110
POMD	1 2 3	Speed of sound, m/s ; Liquid	Temperature, K; Liquid Mole fraction - 1; Liquid Mole fraction - 2; Liquid	Pressure, kPa; Liquid Frequency, MHz; Liquid	Liquid	Single path-length method	110
POMD	1 4 3	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Mole fraction - 1; Liquid Mole fraction - 4; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	120
POMD	1 4 3	Speed of sound, m/s ; Liquid	Temperature, K; Liquid Mole fraction - 1; Liquid Mole fraction - 4; Liquid	Pressure, kPa; Liquid Frequency, MHz; Liquid	Liquid	Single path-length method	120

Thermodynamics Research Center / ThermoML | Journal of Chemical Thermodynamics

Thermodynamic properties of ternary mixture {[C4mim][SCN] + acetic or propionic acid + acetonitrile} over the temperature range of (293.15-313.15) K

Singh, S., Bahadur, I., Ebenso, E.E.

ABSTRACT