ABSTRACT

A series of new synthesized ionic liquids based on 1-octyl-3-methylimidazolium with glycinate, alaninate, serinate, prolinate, and asparaginate anions were prepared. Their thermophysical properties (density, viscosity, surface tension, and heat capacity) were measured at various temperatures and atmospheric pressures. Physicochemical properties such as thermal expansion coefficient values, molecular volume, standard molar entropy, and lattice energy standard were also determined using empirical methods. The effects of anions on the studied properties were further analyzed.

Compounds

#	Formula	Name
1	C14H27N3O2	1-methyl-3-octylimidazolium glycinate
2	C15H29N3O2	1-methyl-3-octylimidazolium L-alaninate
3	C15H29N3O3	1-methyl-3-octyl-1H-imidazol-3-ium L-serinate
4	C17H31N3O2	1-methyl-3-octyl-1H-imidazol-3-ium L-prolinate
5	C16H30N4O3	1-methyl-3-octylimidazolium L-asparaginate

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	Triple point temperature, K ; Glass			Glass Liquid Air at 1 atmosphere	DTA	1
POMD	1	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	9
POMD	1	Viscosity, Pa*s ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	CONCYL:UFactor:3	9
POMD	1	Surface tension liquid-gas, N/m ; Liquid	Temperature, K; Liquid		Liquid Air at 1 atmosphere	Pendant drop shape	7
POMD	1	Molar heat capacity at constant pressure, J/K/mol ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Small sample (50 mg) DSC	7
POMD	2	Triple point temperature, K ; Glass			Glass Liquid Air at 1 atmosphere	DTA	1
POMD	2	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	9
POMD	2	Viscosity, Pa*s ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	CONCYL:UFactor:3	9
POMD	2	Surface tension liquid-gas, N/m ; Liquid	Temperature, K; Liquid		Liquid Air at 1 atmosphere	Pendant drop shape	7
POMD	2	Molar heat capacity at constant pressure, J/K/mol ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Small sample (50 mg) DSC	7
POMD	3	Triple point temperature, K ; Glass			Glass Liquid Air at 1 atmosphere	DTA	1
POMD	3	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	9
POMD	3	Viscosity, Pa*s ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	CONCYL:UFactor:3	9
POMD	3	Surface tension liquid-gas, N/m ; Liquid	Temperature, K; Liquid		Liquid Air at 1 atmosphere	Pendant drop shape	7
POMD	3	Molar heat capacity at constant pressure, J/K/mol ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Small sample (50 mg) DSC	7
POMD	4	Triple point temperature, K ; Glass			Glass Liquid Air at 1 atmosphere	DTA	1
POMD	4	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	9
POMD	4	Viscosity, Pa*s ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	CONCYL:UFactor:3	9
POMD	4	Surface tension liquid-gas, N/m ; Liquid	Temperature, K; Liquid		Liquid Air at 1 atmosphere	Pendant drop shape	7
POMD	4	Molar heat capacity at constant pressure, J/K/mol ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Small sample (50 mg) DSC	7
POMD	5	Triple point temperature, K ; Glass			Glass Liquid Air at 1 atmosphere	DTA	1
POMD	5	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	8
POMD	5	Viscosity, Pa*s ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	CONCYL:UFactor:3	8
POMD	5	Surface tension liquid-gas, N/m ; Liquid	Temperature, K; Liquid		Liquid Air at 1 atmosphere	Pendant drop shape	7
POMD	5	Molar heat capacity at constant pressure, J/K/mol ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Small sample (50 mg) DSC	7

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

Studies on the Physicochemical Properties of Ionic Liquids Based On 1-Octyl-3-methylimidazolium Amino Acids

Ghanem, O. B.[Ouahid Ben], Mutalib, M. I. A., Leveque, J.-M.[Jean-Marc], Gonfa, G.[Girma], Kait, C. F.[Chong Fai], El-Harbawi, M.[Mohanad]

ABSTRACT