ABSTRACT

Viscosity and refractive index values are measured for various binary compositions of 1-ethyl-3-methylimidazolium tetrafluoroborate/1-butyl-3-methylimidazolium tetrafluoroborate and aniline at temperatures from T = (293.15 to 323.15) K under atmospheric pressure. The experimental data is used to calculate molar Gibbs free energy of activation, enthalpy, entropy and also the excess values of viscosity, refractive index, molar Gibbs free energy of activation. Various theoretical models are used to estimate the refractive index values. Redlich-Kister equation is used to estimate the deviations between the calculated and experimental excess values. The variations in the calculated parameters are analysed to understand the nature of molecular interactions between the chemical species. The assumptions on the behaviour of molecular interactions from the analysis of excess parameters are supported by the experimental and computational FT-IR studies.

Compounds

#	Formula	Name
1	C6H11BF4N2	1-ethyl-3-methylimidazolium tetrafluoroborate
2	C8H15BF4N2	1-butyl-3-methylimidazolium tetrafluoroborate
3	C6H7N	aniline

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	Viscosity, Pa*s ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Falling or rolling sphere viscometry	4
POMD	1	Refractive index (Na D-line) ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Standard Abbe refractometry	4
POMD	2	Viscosity, Pa*s ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Falling or rolling sphere viscometry	4
POMD	2	Refractive index (Na D-line) ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Standard Abbe refractometry	4
POMD	3	Viscosity, Pa*s ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Falling or rolling sphere viscometry	4
POMD	3	Refractive index (Na D-line) ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Standard Abbe refractometry	4
POMD	1 3	Viscosity, Pa*s ; Liquid	Temperature, K; Liquid Mole fraction - 1; Liquid	Pressure, kPa; Liquid	Liquid	Falling or rolling sphere viscometry	44
POMD	1 3	Refractive index (Na D-line) ; Liquid	Temperature, K; Liquid Mole fraction - 1; Liquid	Pressure, kPa; Liquid	Liquid	Standard Abbe refractometry	44
POMD	2 3	Viscosity, Pa*s ; Liquid	Temperature, K; Liquid Mole fraction - 2; Liquid	Pressure, kPa; Liquid	Liquid	Falling or rolling sphere viscometry	33
POMD	2 3	Refractive index (Na D-line) ; Liquid	Temperature, K; Liquid Mole fraction - 2; Liquid	Pressure, kPa; Liquid	Liquid	Standard Abbe refractometry	33

Thermodynamics Research Center / ThermoML | Journal of Chemical Thermodynamics

Thermodynamic and theoretical investigations on [Emim][Bf4]/[Bmim][Bf4] and aniline binary mixtures

Narsimlu, V., Reddy, K.C. Sekara, Krishna, T. Viaya, Mohan, T. Madhu, Rao, V. Srinivasa

ABSTRACT