ABSTRACT

We investigated the densities, viscosities, and electrical conductivities of the protic amidium-based ionic liquids with bis(trifluoromethanesulfonyl)amide ([TFSA]-). The cations were N,N-dimethylformamidium, [DMFH]+, N,N-dimethylacetamidium, [DMAH]+, and N,N-dimethylpropionamidium, [DMPH]+. The physical properties were measured over the temperature range from 273.15 to 363.15 K at atmospheric pressure. The densities were correlated with the linear or quadratic equations, and the transport properties were reproduced well with the Vogel Fulcher Tammann equation. The densities and the viscosities increased in the following order: [DMAH][TFSA] greater than [DMPH][TFSA] greater than [DMFH][TFSA]. The opposite trend was observed for the electrical conductivities. The empirical Walden plots gave the straight lines in all the present ionic liquids. It was found that the data points for [DMFH][TFSA] appreciably fall below [DMPH][TFSA] and [DMAH][TFSA] on the Walden plot.

Compounds

#	Formula	Name
1	C5H8F6N2O5S2	N,N-dimethylformamide bis 1,1,1-trifluoro-N-((trifluoromethyl)sulfonyl)methanesulfonamide (1:1)
2	C6H10F6N2O5S2	N,N-dimethylacetamidium bis(trifluoromethanesulfonyl)amide
3	C7H12F6N2O5S2	N,N-dimethylpropionamidium bis(trifluoromethanesulfonyl)amide
4	C3H7NO	dimethylformamide
5	C4H9NO	N,N-dimethylethanamide
6	C5H11NO	N,N-dimethylpropionamide

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	13
POMD	1	Viscosity, Pa*s ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Concentric cylinders viscometry	13
POMD	1	Electrical conductivity, S/m ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Alternating current cell with electrodes	12
POMD	2	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	6
POMD	2	Viscosity, Pa*s ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Concentric cylinders viscometry	6
POMD	2	Electrical conductivity, S/m ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Alternating current cell with electrodes	5
POMD	3	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	13
POMD	3	Viscosity, Pa*s ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Concentric cylinders viscometry	13
POMD	3	Electrical conductivity, S/m ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Alternating current cell with electrodes	12
POMD	4	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	13
POMD	4	Viscosity, Pa*s ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Concentric cylinders viscometry	13
POMD	5	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	13
POMD	5	Viscosity, Pa*s ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Concentric cylinders viscometry	13
POMD	6	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	13
POMD	6	Viscosity, Pa*s ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Concentric cylinders viscometry	13

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

Density, Viscosity, and Electrical Conductivity of Protic Amidium Bis(trifluoromethanesulfonyl)amide Ionic Liquids

Watanabe, M.[Masaki], Kodama, D.[Daisuke], Makino, T.[Takashi], Kanakubo, M.[Mitsuhiro]

ABSTRACT