ABSTRACT

In this paper, physicochemical characterization of newly synthesized choline based ionic liquids with five different chelating anions were examined. The ionic liquids (ILs): cholinium-l-lactate, [Ch][Lac], cholinium-picolinate, [Ch][Pic], cholinium-anthranilate, [Ch][Ant], cholinium-oxyquinolinate, [Ch][oQ], and cholinium-diethylenetriaminepentaacetate, [Ch]3[DTPA], were prepared for the first time and their structures were confirmed by IR and 1H and 13C NMR spectra. Also, thermogravimetric analysis (TGA) was applied to determine their thermal stabilities. Based on the measured density values and viscosity in the temperature range from (293.15 to 323.15) K and calculated values of thermal expansion coefficients and activation energy of viscous flow, as well as of computational simulations, the interactions and structures of the investigated ionic liquids were discussed.

Compounds

#	Formula	Name
1	C8H19NO4	2-hydroxy-N,N,N-trimethylethanaminium (S)-2-hydroxypropanoate
2	C14H20N2O2	choline 8-quinolinolate
3	C12H20N2O3	choline anthranilate
4	C11H18N2O3	choline picolinate
5	C29H62N6O13	tris(choline) diethylenetriaminepentaacetate

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	7
POMD	1	Viscosity, Pa*s ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Concentric cylinders viscometry	7
POMD	2	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	7
POMD	2	Viscosity, Pa*s ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Concentric cylinders viscometry	5
POMD	3	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	7
POMD	3	Viscosity, Pa*s ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Concentric cylinders viscometry	7
POMD	4	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	7
POMD	4	Viscosity, Pa*s ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Concentric cylinders viscometry	7
POMD	5	Normal melting temperature, K ; Crystal			Crystal Liquid Air at 1 atmosphere	VISOBS	1
POMD	5	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	5

Thermodynamics Research Center / ThermoML | Journal of Chemical Thermodynamics

Physicochemical characterization of choline based ionic liquids with chelating anions

Vranes, Milan, Panic, Jovana, Tot, Aleksandar, Popsavin, Mirjana, Jocic, Ana, Gadzuric, Slobodan

ABSTRACT