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Ionic Liquids Database	- (ILThermo)

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Property Data of Pure Ionic Liquids

Search by Property

Presentation Logic

This page has a hierarchical structure: a new selection made in any displayed table results in an update of all content below the table. Upon selection of a specific physical property from the following table, the browser displays the list of ionic liquids for which the selected property is available. Selection of an ionic liquid from the list displays the information on the ionic pair constituting the selected ionic liquid, followed by the list of datasets available. Finally, selection of a specific dataset presents a detailed data summary at the bottom of the page.

Available Properties for Ionic Liquids

1-23 of 23

Select	Property Category	Description
	Electrical Conductivity	Electrical Conductivity, S/m
	Heat Capacity and Derived Properties	Heat Capacity at Constant Pressure, J/K/mol
	Heat Capacity and Derived Properties	Heat Capacity at Vapor Saturation Pressure, J/K/mol
	Heat Capacity and Derived Properties	Standard Enthalpy H(T)-H(0), kJ/mol
	Heat Capacity and Derived Properties	Enthalpy Function (H(T)-H(0))/T, J/K/mol
	Heat Capacity and Derived Properties	Standard Entropy, J/K/mol
	Phase Transition Properties	Enthalpy of Transition or Fusion, kJ/mol
	Phase Transition Properties	Triple Point Temperature, K
	Phase Transition Properties	Glass Transition Temperature, K
	Phase Transition Properties	Normal Melting Temperature, K
	Phase Transition Properties	Solid-Liquid Equilibrium Temperature, K
	Phase Transition Properties	Solid-Solid Phase Transition Temperature, K
	Refraction, Surface Tension, and Speed of Sound	Surface Tension, N/m
	Refraction, Surface Tension, and Speed of Sound	Refractive Index (Na D-line), Dimensionless
	Refraction, Surface Tension, and Speed of Sound	Speed of Sound, m/s
	Transport Properties	Self Diffusion Coefficient, m2/s/109
	Transport Properties	Thermal Conductivity, W/m/K
	Transport Properties	Thermal Diffusivity, m**2/s
	Transport Properties	Viscosity, Pa s
	Transport Properties	Kinematic Viscosity, m**2/s
	Vapor Pressure, Boiling Temperature, and Azeotropic T & P	Phase Boundary Pressure, kPa
	Volumetric Properties	Specific Density, kg/m**3
	Volumetric Properties	Molar Volume, m**3/mol

1-23 of 23

Ionic Liquid(s) with the Property - Electrical Conductivity, S/m

Next 14

Formula	Ionic Liquid Names	References	Data Points
C11H14F6N2O4S2	1-butylpyridinium 1,1,1-trifluoro-N-[(trifluoromethyl)sulfonyl]methanesulfonamide; 1-butylpyridinium bis(trifluoromethylsulfonyl)imide; 1-butylpyridinium bis[(trifluoromethyl)sulfonyl]amide; 1-butylpyridinium bis[(trifluoromethyl)sulfonyl]imide	1	10
C8H15F6N2P	1-butyl-3-methylimidazolium hexafluorophosphate; 1-n-butyl-3-methylimidazolium hexafluorophosphate	4	67
C10H19BF4N2	1-hexyl-3-methylimidazolium tetrafluoroborate	1	1
C12H23BF4N2	1-methyl-3-octylimidazolium tetrafluoroborate; 1-octyl-3-methylimidazolium tetrafluoroborate	1	81
C12H15F10N3O4S2	1-butyl-3-methylimidazolium bis(perfluoroethylsulfonyl)imide	1	10
C9H18F6N2O4S2	butyltrimethylammonium bis(trifluoromethylsulfonyl)imide	1	10
C10H19F6N2P	1-hexyl-3-methylimidazolium hexafluorophosphate	1	1
C12H23F6N2P	1-methyl-3-octylimidazolium hexafluorophosphate; 1-octyl-3-methylimidazolium hexafluorophosphate	2	80
C8H15BF4N2	1-butyl-3-methylimidazolium tetrafluoroborate; 1-n-butyl-3-methylimidazolium tetrafluoroborate; [BMIM][BF4]	4	13
C9H15F3N2O3S	1-butyl-3-methylimidazolium triflate; 1-butyl-3-methylimidazolium trifluoromethanesulfonate	1	10
C7H9F6N3O4S2	1,3-dimethylimidazolium 1,1,1-trifluoro-N-[(trifluoromethyl)sulfonyl]methanesulfonamide; 1,3-dimethylimidazolium bis(trifluoromethylsulfonyl)imide; 1,3-dimethylimidazolium bis[(trifluoromethyl)sulfonyl]amide; 1,3-dimethylimidazolium bis[(trifluoromethyl)sulfonyl]imide	2	19
C11H22F6N2O4S2	N,N,N-trimethyl-1-hexanaminium bis[(trifluoromethyl)sulfonyl]imide; hexyltrimethylammonium 1,1,1-trifluoro-N-[(trifluoromethyl)sulfonyl]methanesulfonamide; hexyltrimethylammonium bis(trifluoromethylsulfonyl)imide; hexyltrimethylammonium bis[(trifluoromethyl)sulfonyl]amide; hexyltrimethylammonium bis[(trifluoromethyl)sulfonyl]imide	1	1
C8H16N2O4S	1-ethyl-3-methylimidazolium ethyl sulfate	2	37
C12H24F6N2O4S2	N,N,N-trimethyl-1-heptanaminium bis[(trifluoromethyl)sulfonyl]imide; heptyltrimethylammonium 1,1,1-trifluoro-N-[(trifluoromethyl)sulfonyl]methanesulfonamide; heptyltrimethylammonium bis(trifluoromethylsulfonyl)imide; heptyltrimethylammonium bis[(trifluoromethyl)sulfonyl]amide; heptyltrimethylammonium bis[(trifluoromethyl)sulfonyl]imide	1	1
C13H26F6N2O4S2	N,N,N-trimethyl-1-octanaminium bis[(trifluoromethyl)sulfonyl]imide; trimethyloctylammonium 1,1,1-trifluoro-N-[(trifluoromethyl)sulfonyl]methanesulfonamide; trimethyloctylammonium bis(trifluoromethylsulfonyl)imide; trimethyloctylammonium bis[(trifluoromethyl)sulfonyl]amide; trimethyloctylammonium bis[(trifluoromethyl)sulfonyl]imide	1	1
C14H28F6N2O4S2	N,N,N-triethyl-1-hexanaminium bis[(trifluoromethyl)sulfonyl]imide; triethylhexylammonium 1,1,1-trifluoro-N-[(trifluoromethyl)sulfonyl]methanesulfonamide; triethylhexylammonium bis(trifluoromethylsulfonyl)imide; triethylhexylammonium bis[(trifluoromethyl)sulfonyl]amide; triethylhexylammonium bis[(trifluoromethyl)sulfonyl]imide	1	1
C8H11F6N3O4S2	1-ethyl-3-methylimidazolium 1,1,1-trifluoro-N-[(trifluoromethyl)sulfonyl]methanesulfonamide; 1-ethyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide; 1-ethyl-3-methylimidazolium bis[(trifluoromethyl)sulfonyl]amide; 1-ethyl-3-methylimidazolium bis[(trifluoromethyl)sulfonyl]imide	3	27
C7H13BF4N2	1-propyl-3-methylimidazolium tetrafluoroborate	1	1
C12H19F6N3O4S2	1-hexyl-3-methylimidazolium 1,1,1-trifluoro-N-[(trifluoromethyl)sulfonyl]methanesulfonamide; 1-hexyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide; 1-hexyl-3-methylimidazolium bis[(trifluoromethyl)sulfonyl]amide; 1-hexyl-3-methylimidazolium bis[(trifluoromethyl)sulfonyl]imide	6	42
C15H30F6N2O4S2	N,N,N-triethyl-1-heptanaminium bis[(trifluoromethyl)sulfonyl]imide; triethylheptylammonium 1,1,1-trifluoro-N-[(trifluoromethyl)sulfonyl]methanesulfonamide; triethylheptylammonium bis(trifluoromethylsulfonyl)imide; triethylheptylammonium bis[(trifluoromethyl)sulfonyl]amide; triethylheptylammonium bis[(trifluoromethyl)sulfonyl]imide	1	1

Next 14

Ionic pair constituting this ionic liquid - 1-butylpyridinium bis[(trifluoromethyl)sulfonyl]imide

Formula	Ionic Charge	Ionic Names	Structure
C2F6NO4S2	-1	bis[(trifluoromethyl)sulfonyl]imide	Image
C9H14N	1	1-butylpyridinium	Image

References and Data Sets

1-1 of 1

Select	Reference Title	Sample No	Data Set	Year Pub.	Authors
	How Ionic Are Room-Temperature Ionic Liquids? An Indicator of the Physicochemical Properties	1	2	2006	Tokuda, H.; Tsuzuki, S.; Susan, M. A. B. H.; Hayamizu, K.; Watanabe, M.

Data Summary

Property: Electrical Conductivity, S/m

Compound:

Name -

1-butylpyridinium bis[(trifluoromethyl)sulfonyl]imide

Formula -

C11H14F6N2O4S2

Sample No 1

Source: Synthesized by the author

Initial Purity: Not stated

Purification: Dried by heating in a vacuum

Final Purity: .004 water mass %

Purity Analysis: Karl Fischer titration

Measurement Method: Hewlett-Packard 4192A LF impedance analyzer

Selected Data Set No. 2

(Property/Uncertainty - Electrical Conductivity, S/m )

Condition(s): Single phase system at a fixed pressure of 1 atm

1-10 of 10

Temperature, K

Electrical Conductivity, S/m

Liquid

Uncertainty Assigned by ILThermo

About Assigned Uncertainty

263.1

0.042

0.0040

273.1

0.087

0.0090

283.1

0.16

0.020

293.1

0.26

0.030

298.1

0.33

0.030

303.1

0.40

0.040

313.1

0.58

0.060

333.1

0.99

0.10

353.1

1.6

0.20

373.1

2.3

0.20

1-10 of 10

Selected Reference

Year Pub.

Authors

Source

2006

Tokuda, H.; Tsuzuki, S.; Susan, M. A. B. H.; Hayamizu, K.; Watanabe, M.

J. Phys. Chem. B 110 (39), 19593-19600

Title:

How Ionic Are Room-Temperature Ionic Liquids? An Indicator of the Physicochemical Properties

Keywords:

Abstract:

Room-temperature ionic liquids (RTILs) are liquids consisting entirely of ions, and their important properties, e.g., negligible vapor pressure, are considered to result from the ionic nature. However, we do not know how ionic the RTILs are. The ionic nature of the RTILs is defined in this study as the molar conductivity ratio (imp/NMR), calculated from the molar conductivity measured by the electrochemical impedance method (imp) and that estimated by use of pulse-field-gradient spin-echo NMR ionic self-diffusion coefficients and the Nernst-Einstein relation (NMR). This ratio is compared with solvatochromic polarity scales: anionic donor ability (Lewis basicity), ET(30), hydrogen bond donor acidity (alpha), and dipolarity/polarizability (Pi), as well as NMR chemical shifts. The imp/NMR well illustrates the degree of cation-anion aggregation in the RTILs at equilibrium, which can be explained by the effects of anionic donor and cationic acceptor abilities for the RTILs having different anionic and cationic backbone structures with fixed counterparts, and by the inductive and dispersive forces for the various alkyl chain lengths in the cations. As a measure of the electrostatic interaction of the RTILs, the effective ionic concentration (Ceff), which is a dominant parameter for the electrostatic forces of the RTILs, was introduced as the product of imp/NMR and the molar concentration and was compared with some physical properties, such as reported normal boiling points and distillation rates, glass transition temperature, and viscosity. A decrease in Ceff of the RTILs is well correlated with the normal boiling point and distillation rate, whereas the liquid-state dynamics is controlled by a subtle balance between the electrostatic and other intermolecular forces.