ABSTRACT

The densities of ternary systems ([Emim][Cl]+ LiCl + H2O), ([Emim][Cl] + LiBr + H2O), and ([Emim][Cl]+ LiNO3 + H2O) and also binary system ([Emim][Cl] + H2O) were measured at T = (298.15 to 318.15) K using a vibrating U-tube densimeter. On the basis of experimental density data, the apparent molar volumes, Vf, were computed. The values of apparent molar volumes for binary system were correlated to Redlich Meyer and Pitzer equations and for ternary systems were correlated to Redlich Meyer equation and apparent molar volumes at infinite dilution, Vf0, are also calculated. Our results showed a negative transfer volume of [EmimCl] from water to the aqueous LiCl, LiBr, and LiNO3 solutions, which decrease by enhancing the salt mass fraction. The solute solvent interactions and structure making or breaking ability of [Emim][Cl] have been discussed in details. The results of second derivative of limiting apparent molar volumes showed that the studied ionic liquid in this work acts as a structure maker.

Compounds

#	Formula	Name
1	C6H11ClN2	1-ethyl-3-methylimidazolium chloride
2	ClLi	lithium chloride
3	BrLi	lithium bromide
4	LiNO3	lithium nitrate
5	H2O	water

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	2 5 1	Mass density, kg/m3 ; Liquid	Solvent: Mass fraction - 2; Liquid Temperature, K; Liquid Molality, mol/kg - 1; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	160
POMD	3 5 1	Mass density, kg/m3 ; Liquid	Solvent: Mass fraction - 3; Liquid Temperature, K; Liquid Molality, mol/kg - 1; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	160
POMD	5 4 1	Mass density, kg/m3 ; Liquid	Solvent: Mass fraction - 4; Liquid Temperature, K; Liquid Molality, mol/kg - 1; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	160
POMD	5 1	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Molality, mol/kg - 1; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	40

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

Study of Apparent Molar Volumes for Ionic Liquid, 1-Ethyl-3-methyl Imidazolium Chloride in Aqueous Lithium Nitrate, Lithium Bromide, and Lithium Chloride Solutions at Temperatures (298.15 to 318.15) K

Rafiee, H. R.[Hamid Reza], Frouzesh, F.[Farshid]

ABSTRACT