ABSTRACT

Density, refractive index nD, and viscosity for ionic liquids [Cnmim]Cl (Cnmim = 1-alkyl-3-methylimidazolium; n = 2, 4, 6, 8 for ethyl, butyl, hetyl, and octyl) + N,N-dimethylformamide (DMF) binary systems have been investigated at atmospheric pressure from 288.15 K to 318.15 K. The molar excess Gibbs energy ?G*E, volumetric properties including excess molar volume VE, and apparent molar volume Vf,i have been calculated from the experimental data. Furthermore, the refractive index and viscosity deviations (nD, ?) from the ideal behavior have been obtained and well fitted to the Redlich Kister equation. Our results show that DMF can effectively adjust the physicochemical properties of 1-alkyl-3-methylimidazolium ionic liquids.

Compounds

#	Formula	Name
1	C6H11ClN2	1-ethyl-3-methylimidazolium chloride
2	C8H15ClN2	1-butyl-3-methylimidazolium chloride
3	C3H7NO	dimethylformamide
4	C10H19ClN2	1-hexyl-3-methylimidazolium chloride
5	C12H23ClN2	1-methyl-3-octylimidazolium chloride

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	3	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	VIBTUB:UFactor:16	4
POMD	3	Refractive index (Na D-line) ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	ABBE:UFactor:2	4
POMD	3	Viscosity, Pa*s ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	CONCYL:UFactor:16	4
POMD	4	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	VIBTUB:UFactor:16	4
POMD	4	Refractive index (Na D-line) ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	ABBE:UFactor:4	4
POMD	4	Viscosity, Pa*s ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	CONCYL:UFactor:32	2
POMD	5	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	VIBTUB:UFactor:16	4
POMD	5	Refractive index (Na D-line) ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	ABBE:UFactor:2	4
POMD	5	Viscosity, Pa*s ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	CONCYL:UFactor:16	2
POMD	3 1	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Mole fraction - 1; Liquid	Pressure, kPa; Liquid	Liquid	VIBTUB:UFactor:16	64
POMD	3 1	Refractive index (Na D-line) ; Liquid	Temperature, K; Liquid Mole fraction - 1; Liquid	Pressure, kPa; Liquid	Liquid	ABBE:UFactor:2	64
POMD	3 1	Viscosity, Pa*s ; Liquid	Temperature, K; Liquid Mole fraction - 1; Liquid	Pressure, kPa; Liquid	Liquid	CONCYL:UFactor:16	64
POMD	3 2	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Mole fraction - 2; Liquid	Pressure, kPa; Liquid	Liquid	VIBTUB:UFactor:16	64
POMD	3 2	Refractive index (Na D-line) ; Liquid	Temperature, K; Liquid Mole fraction - 2; Liquid	Pressure, kPa; Liquid	Liquid	ABBE:UFactor:2	64
POMD	3 2	Viscosity, Pa*s ; Liquid	Temperature, K; Liquid Mole fraction - 2; Liquid	Pressure, kPa; Liquid	Liquid	CONCYL:UFactor:16	64
POMD	3 4	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Mole fraction - 4; Liquid	Pressure, kPa; Liquid	Liquid	VIBTUB:UFactor:16	52
POMD	3 4	Refractive index (Na D-line) ; Liquid	Temperature, K; Liquid Mole fraction - 4; Liquid	Pressure, kPa; Liquid	Liquid	ABBE:UFactor:4	52
POMD	3 4	Viscosity, Pa*s ; Liquid	Temperature, K; Liquid Mole fraction - 4; Liquid	Pressure, kPa; Liquid	Liquid	CONCYL:UFactor:32	50
POMD	3 5	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Mole fraction - 5; Liquid	Pressure, kPa; Liquid	Liquid	VIBTUB:UFactor:16	52
POMD	3 5	Refractive index (Na D-line) ; Liquid	Temperature, K; Liquid Mole fraction - 5; Liquid	Pressure, kPa; Liquid	Liquid	ABBE:UFactor:2	52
POMD	3 5	Viscosity, Pa*s ; Liquid	Temperature, K; Liquid Mole fraction - 5; Liquid	Pressure, kPa; Liquid	Liquid	CONCYL:UFactor:16	50

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

Physicochemical Properties for the Binary Systems of Ionic Liquids [Cnmim]Cl + N,N-Dimethylformamide

Yan, X.-J.[Xiao-Jing], Li, S.-N.[Shu-Ni], Zhai, Q.-G.[Quan-Guo], Jiang, Y.-C.[Yu-Cheng], Hu, M.-C.[Man-Cheng]

ABSTRACT