ABSTRACT

Density, surface tension, interfacial tension with water, and contact angles on Te?on and glass surfaces of 21 ionic liquids based on functionalized imidazolium, ammonium, phosphonium, and guanidinium cations combined with several anions, such as chloride, tetrafluoroborate, bis(tri?uoromethanesulfonyl)imide, dicyanamide, p-toluenesulfonate, and ethylsulfate, were completely measured. The structure-property relationship of the selected ionic liquids was considered in order to predict their potential applications. Particularly relevant were the lower surface tension values (at 293.15 K) observed for tetrahexyldimethylguanidinium dicyanamide, [(di-h)2dmg][DCA] (21.35 ( 0.03 mN*m -1 ), and trioctylmethylammonium bis(tri?uoromethanesulfonyl)imide, [Aliquat][NTf2] (22.77(0.05 mN*m -1 ), and the remarkably low contact angles on Te?on surfaces of [(di-h)2dmg][DCA] (39.66deg ) and trihexyltetradecylphosphonium p-toluenesulfonate, [P6,6,6,14][p-TsO] (39.77deg ).

Compounds

#	Formula	Name
1	C8H16N2O4S	1-ethyl-3-methylimidazolium ethyl sulfate
2	C8H15BF4N2	1-butyl-3-methylimidazolium tetrafluoroborate
3	C10H15F6N3O4S2	1-butyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide
4	C10H15N5	1-butyl-3-methylimidazolium dicyanamide
5	C12H23ClN2	1-methyl-3-octylimidazolium chloride
6	C12H23BF4N2	1-methyl-3-octylimidazolium tetrafluoroborate
7	C14H23F6N3O4S2	1-octyl-3-methylimidazolium bis[(trifluoromethyl)sulfonyl]imide
8	C14H23N5	3-methyl-1-octylimidazolium dicyanamide
9	C14H27BF4N2	1-decyl-3-methylimidazolium tetrafluoroborate
10	C16H27N5	1-decyl-3-methylimidazolium dicyanamide
11	C7H13BF4N2O	1-(2-methoxyethyl)-3-methyl-imidazolium tetrafluoroborate
12	C11H17F6N3O4S2	1-butyl-2,3-dimethyl-1H-imidazolium bis(trifluoromethylsulfonyl)amide
13	C8H11N5O	3-(2-hydroxyethyl)-1-methyl-1H-imidazol-3-ium dicyanoazanide
14	C25H54ClN	N-methyl-N,N-dioctyl-1-octanaminium chloride
15	C27H54F6N2O4S2	methyltrioctylammonium 1,1,1-trifluoro-N-[(trifluoromethyl)sulfonyl]methanesulfonamide
16	C27H54N4	N,N,N-trioctyl-N-methylammonium dicyanamide
17	C32H68ClP	trihexyl(tetradecyl)phosphonium chloride
18	C34H68N3P	tetradecyl(trihexyl)phosphonium dicyanamide
19	C39H75O3PS	tetradecyl(trihexyl)phosphonium tosylate
20	C27H58ClN3	N-[(dihexylamino)(dimethylamino)methylene]-N-hexyl-1-hexanaminium chloride
21	C29H58N6	N-[(dihexylamino)(dimethylamino)methylene]-N-hexyl-1-hexanaminium dicyanamide
22	H2O	water
23	CH2Cl2	dichloromethane
24	C8H18O	octan-1-ol
25	C2H6O2	1,2-ethanediol

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	Phase	Method	#Points
POMD	1	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid	Liquid	Pycnometric method	1
POMD	1	Surface tension liquid-gas, N/m ; Liquid	Temperature, K; Liquid	Liquid Air at 1 atmosphere	Pendant drop shape	1
POMD	2	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid	Liquid	Pycnometric method	1
POMD	2	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid	Liquid	Pycnometric method	1
POMD	2	Surface tension liquid-gas, N/m ; Liquid	Temperature, K; Liquid	Liquid Air at 1 atmosphere	Pendant drop shape	1
POMD	3	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid	Liquid	Pycnometric method	1
POMD	3	Surface tension liquid-gas, N/m ; Liquid	Temperature, K; Liquid	Liquid Air at 1 atmosphere	Pendant drop shape	1
POMD	4	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid	Liquid	Pycnometric method	1
POMD	4	Surface tension liquid-gas, N/m ; Liquid	Temperature, K; Liquid	Liquid Air at 1 atmosphere	Pendant drop shape	1
POMD	5	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid	Liquid	Pycnometric method	1
POMD	5	Surface tension liquid-gas, N/m ; Liquid	Temperature, K; Liquid	Liquid Air at 1 atmosphere	Pendant drop shape	1
POMD	6	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid	Liquid	Pycnometric method	1
POMD	6	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid	Liquid	Pycnometric method	1
POMD	6	Surface tension liquid-gas, N/m ; Liquid	Temperature, K; Liquid	Liquid Air at 1 atmosphere	Pendant drop shape	1
POMD	7	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid	Liquid	Pycnometric method	1
POMD	7	Surface tension liquid-gas, N/m ; Liquid	Temperature, K; Liquid	Liquid Air at 1 atmosphere	Pendant drop shape	1
POMD	8	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid	Liquid	Pycnometric method	1
POMD	8	Surface tension liquid-gas, N/m ; Liquid	Temperature, K; Liquid	Liquid Air at 1 atmosphere	Pendant drop shape	1
POMD	9	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid	Liquid	Pycnometric method	1
POMD	9	Surface tension liquid-gas, N/m ; Liquid	Temperature, K; Liquid	Liquid Air at 1 atmosphere	Pendant drop shape	1
POMD	10	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid	Liquid	Pycnometric method	1
POMD	10	Surface tension liquid-gas, N/m ; Liquid	Temperature, K; Liquid	Liquid Air at 1 atmosphere	Pendant drop shape	1
POMD	11	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid	Liquid	Pycnometric method	1
POMD	11	Surface tension liquid-gas, N/m ; Liquid	Temperature, K; Liquid	Liquid Air at 1 atmosphere	Pendant drop shape	1
POMD	12	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid	Liquid	Pycnometric method	1
POMD	12	Surface tension liquid-gas, N/m ; Liquid	Temperature, K; Liquid	Liquid Air at 1 atmosphere	Pendant drop shape	1
POMD	13	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid	Liquid	Pycnometric method	1
POMD	13	Surface tension liquid-gas, N/m ; Liquid	Temperature, K; Liquid	Liquid Air at 1 atmosphere	Pendant drop shape	1
POMD	14	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid	Liquid	Pycnometric method	1
POMD	14	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid	Liquid	Pycnometric method	1
POMD	14	Surface tension liquid-gas, N/m ; Liquid	Temperature, K; Liquid	Liquid Air at 1 atmosphere	Pendant drop shape	1
POMD	15	Surface tension liquid-gas, N/m ; Liquid	Temperature, K; Liquid	Liquid Air at 1 atmosphere	Pendant drop shape	1
POMD	16	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid	Liquid	Pycnometric method	1
POMD	16	Surface tension liquid-gas, N/m ; Liquid	Temperature, K; Liquid	Liquid Air at 1 atmosphere	Pendant drop shape	1
POMD	17	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid	Liquid	Pycnometric method	1
POMD	17	Surface tension liquid-gas, N/m ; Liquid	Temperature, K; Liquid	Liquid Air at 1 atmosphere	Pendant drop shape	1
POMD	18	Surface tension liquid-gas, N/m ; Liquid	Temperature, K; Liquid	Liquid Air at 1 atmosphere	Pendant drop shape	1
POMD	19	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid	Liquid	Pycnometric method	1
POMD	19	Surface tension liquid-gas, N/m ; Liquid	Temperature, K; Liquid	Liquid Air at 1 atmosphere	Pendant drop shape	1
POMD	20	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid	Liquid	Pycnometric method	1
POMD	20	Surface tension liquid-gas, N/m ; Liquid	Temperature, K; Liquid	Liquid Air at 1 atmosphere	Pendant drop shape	1
POMD	21	Surface tension liquid-gas, N/m ; Liquid	Temperature, K; Liquid	Liquid Air at 1 atmosphere	Pendant drop shape	1
POMD	22	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid	Liquid	Pycnometric method	1
POMD	23	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid	Liquid	Pycnometric method	1
POMD	24	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid	Liquid	Pycnometric method	1
POMD	25	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid	Liquid	Pycnometric method	1
POMD	22 3	Interfacial tension, N/m ; Liquid mixture 1	Temperature, K; Liquid mixture 1 Pressure, kPa; Liquid mixture 1	Liquid mixture 1 Liquid mixture 2	pendant drop method	1
POMD	22 7	Interfacial tension, N/m ; Liquid mixture 1	Temperature, K; Liquid mixture 1 Pressure, kPa; Liquid mixture 1	Liquid mixture 1 Liquid mixture 2	pendant drop method	1
POMD	22 12	Interfacial tension, N/m ; Liquid mixture 1	Temperature, K; Liquid mixture 1 Pressure, kPa; Liquid mixture 1	Liquid mixture 1 Liquid mixture 2	pendant drop method	1
POMD	14 22	Interfacial tension, N/m ; Liquid mixture 1	Temperature, K; Liquid mixture 1 Pressure, kPa; Liquid mixture 1	Liquid mixture 1 Liquid mixture 2	pendant drop method	1
POMD	22 17	Interfacial tension, N/m ; Liquid mixture 1	Temperature, K; Liquid mixture 1 Pressure, kPa; Liquid mixture 1	Liquid mixture 1 Liquid mixture 2	pendant drop method	1
POMD	24 22	Interfacial tension, N/m ; Liquid mixture 1	Temperature, K; Liquid mixture 1 Pressure, kPa; Liquid mixture 1	Liquid mixture 1 Liquid mixture 2	pendant drop method	1

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

Interfacial Properties, Densities, and Contact Angles of Task Specific Ionic Liquids

Carrera, G. V. S. M.[Goncalo V. S. M.], Afonso, C. A. M.[Carlos A.M.], Branco, L. C.[Luis C.]

ABSTRACT