2
0
2010
zec
sto
0
journal
Original
Zech, O.[Oliver]
Stoppa, A.[Alexander]
Buchner, R.[Richard]
Kunz, W.[Werner]
J. Chem. Eng. Data
2010
2020-09-29
The Conductivity of Imidazolium-Based Ionic Liquids from (248 to 468) K. B. Variation of the Anion
The effect of the anion, namely dicyanamide, hexafluorophosphate, trifluoroacetate, or trifluoromethanesulfonate, on the conductivity (?) of 1-N-butyl-3-N-methylimidazolium-based room-temperature ionic liquids (RTILs) was studied over the temperature range (248 to 468) K. The uncertainty in ? was estimated to be less than 0.5 %. The conductivity values obtained are well-described by the Vogel-Fulcher-Tammann equation. Additionally, densities (?) and the corresponding molar conductivities (?) are reported for the temperature range (278 to 338) K. The data for ? and the associated viscosities (?) were found to fit fractional forms of the Walden relationship.
10.1021/je900793r
5
55
1774-1778
1
InChI=1S/C8H15N2.F6P/c1-3-4-5-10-7-6-9(2)8-10;1-7(2,3,4,5)6/h6-8H,3-5H2,1-2H3;/q+1;-1
IXQYBUDWDLYNMA-UHFFFAOYSA-N
1-butyl-3-methylimidazolium hexafluorophosphate
1-butyl-3-methyl-1H-imidazol-3-ium hexafluorophosphate
1-butyl-3-methylimidazolium hexafluorophosphate [BMIM][PF6]
1-n-butyl-3-methylimidazolium hexafluorophosphate
1-n-butyl-3-methylimidazolium hexafluorophosphate [BMIM][PF6]
C8H15F6N2P
1
Synthesized by the authors
1
Dried by vacuum heating
2
0.005
1
Ion-selective electrode
3
99
2
Estimated by the compiler
4
0.008
1
Karl Fischer titration
2
InChI=1S/C8H15N2.C2HF3O2/c1-3-4-5-10-7-6-9(2)8-10;3-2(4,5)1(6)7/h6-8H,3-5H2,1-2H3;(H,6,7)/q+1;/p-1
QPDGLRRWSBZCHP-UHFFFAOYSA-M
1-butyl-3-methylimidazolium trifluoroacetate
C10H15F3N2O2
1
Synthesized by the authors
1
Dried by vacuum heating
2
0.008
1
Karl Fischer titration
3
99
2
Estimated by the compiler
4
0.005
1
Ion-selective electrode
3
InChI=1S/C8H15N2.C2N3/c1-3-4-5-10-7-6-9(2)8-10;3-1-5-2-4/h6-8H,3-5H2,1-2H3;/q+1;-1
ICIVTHOGIQHZRY-UHFFFAOYSA-N
1-butyl-3-methylimidazolium dicyanamide
C10H15N5
1
Synthesized by the authors
1
Dried by vacuum heating
2
0.008
1
Karl Fischer titration
3
0.21
2
Ion-selective electrode
4
99
2
Estimated by the compiler
4
InChI=1S/C8H15N2.CHF3O3S/c1-3-4-5-10-7-6-9(2)8-10;2-1(3,4)8(5,6)7/h6-8H,3-5H2,1-2H3;(H,5,6,7)/q+1;/p-1
FRZPYEHDSAQGAS-UHFFFAOYSA-M
1-butyl-3-methylimidazolium trifluoromethanesulfonate
1-butyl-3-methylimidazolium 1,1,1-trifluoromethanesulfonate
1-butyl-3-methylimidazolium triflate
C9H15F3N2O3S
1
Synthesized by the authors
1
Dried by vacuum heating
2
0.008
1
Karl Fischer titration
3
99
2
Estimated by the compiler
4
0.005
1
Ion-selective electrode
1
1
1
Principal objective of the work
GPC
TRC
8/11/2011
1
Electrical conductivity, S/m
Alternating current cell with electrodes
Liquid
Direct value, X
1
Data file compiler
Propagation of evaluated standard uncertainties
95
Liquid
1
Pressure, kPa
Liquid
101.325
6
1
Temperature, K
Liquid
1
268.15
5
1
0.0164
3
1
0.0002
1
278.15
5
1
0.0385
3
1
0.0004
1
288.15
5
1
0.0792
3
1
0.0008
1
298.15
5
1
0.1465
4
1
0.0015
1
308.15
5
1
0.248
3
1
0.003
1
318.15
5
1
0.39
3
1
0.004
1
328.15
5
1
0.578
3
1
0.006
1
338.15
5
1
0.815
3
1
0.008
1
348.15
5
1
1.102
4
1
0.011
1
358.15
5
1
1.44
4
1
0.014
1
368.15
5
1
1.825
4
1
0.018
1
378.15
5
1
2.26
3
1
0.02
1
388.15
5
1
2.74
3
1
0.03
1
398.15
5
1
3.25
3
1
0.03
1
408.15
5
1
3.81
3
1
0.04
1
418.15
5
1
4.39
3
1
0.04
1
428.15
5
1
5.01
3
1
0.05
1
438.15
5
1
5.65
3
1
0.06
1
448.15
5
1
6.31
3
1
0.06
1
458.15
5
1
7
3
1
0.07
1
468.15
5
1
7.69
3
1
0.08
2
1
1
Principal objective of the work
GPC
TRC
8/11/2011
1
Mass density, kg/m3
VIBTUB:UFactor:12
Liquid
Direct value, X
1
Data file compiler
Propagation of evaluated standard uncertainties
95
Liquid
1
Pressure, kPa
Liquid
101.325
6
1
Temperature, K
Liquid
1
278.15
5
1
1383.38
6
1
2.58
1
288.15
5
1
1376.92
6
1
2.55
1
298.15
5
1
1368.35
6
1
2.51
1
308.15
5
1
1359.96
6
1
2.46
1
318.15
5
1
1351.63
6
1
2.42
1
328.15
5
1
1343.16
6
1
2.38
1
338.15
5
1
1334.73
6
1
2.33
3
2
1
Principal objective of the work
GPC
TRC
8/11/2011
1
Electrical conductivity, S/m
Alternating current cell with electrodes
Liquid
Direct value, X
1
Data file compiler
Propagation of evaluated standard uncertainties
95
Liquid
1
Pressure, kPa
Liquid
101.325
6
1
Temperature, K
Liquid
1
248.15
5
1
0.00858
3
1
9e-05
1
258.15
5
1
0.0244
3
1
0.0003
1
268.15
5
1
0.0569
3
1
0.0006
1
278.15
5
1
0.1144
4
1
0.0011
1
288.15
5
1
0.205
3
1
0.002
1
298.15
5
1
0.332
3
1
0.003
1
308.15
5
1
0.504
3
1
0.005
1
318.15
5
1
0.723
3
1
0.007
1
328.15
5
1
0.988
3
1
0.01
1
338.15
5
1
1.301
4
1
0.013
1
348.15
5
1
1.658
4
1
0.017
1
358.15
5
1
2.06
3
1
0.02
1
368.15
5
1
2.5
3
1
0.03
4
2
1
Principal objective of the work
GPC
TRC
8/11/2011
1
Mass density, kg/m3
VIBTUB:UFactor:12
Liquid
Direct value, X
1
Data file compiler
Propagation of evaluated standard uncertainties
95
Liquid
1
Pressure, kPa
Liquid
101.325
6
1
Temperature, K
Liquid
1
278.15
5
1
1230.37
6
1
1.77
1
288.15
5
1
1223.4
6
1
1.74
1
298.15
5
1
1215.48
6
1
1.7
1
308.15
5
1
1207.71
6
1
1.66
1
318.15
5
1
1200.23
6
1
1.62
1
328.15
5
1
1192.56
6
1
1.58
1
338.15
5
1
1185.09
6
1
1.54
5
3
1
Principal objective of the work
GPC
TRC
8/11/2011
1
Electrical conductivity, S/m
Alternating current cell with electrodes
Liquid
Direct value, X
1
Data file compiler
Propagation of evaluated standard uncertainties
95
Liquid
1
Pressure, kPa
Liquid
101.325
6
1
Temperature, K
Liquid
1
248.15
5
1
0.0483
3
1
0.001
1
258.15
5
1
0.118
4
1
0.0024
1
268.15
5
1
0.242
3
1
0.005
1
278.15
5
1
0.433
3
1
0.009
1
288.15
5
1
0.702
3
1
0.014
1
298.15
5
1
1.052
4
1
0.021
1
308.15
5
1
1.483
4
1
0.03
1
318.15
5
1
1.991
4
1
0.04
1
328.15
5
1
2.57
3
1
0.05
1
338.15
5
1
3.22
3
1
0.06
1
348.15
5
1
3.93
3
1
0.08
1
358.15
5
1
4.69
3
1
0.09
1
368.15
5
1
5.41
3
1
0.11
1
378.15
5
1
6.34
3
1
0.13
1
388.15
5
1
7.26
3
1
0.15
1
398.15
5
1
8.19
3
1
0.16
1
408.15
5
1
9.15
3
1
0.18
1
418.15
5
1
10.12
4
1
0.2
1
428.15
5
1
11.12
4
1
0.22
1
438.15
5
1
12.1
4
1
0.24
1
448.15
5
1
13.09
4
1
0.26
1
458.15
5
1
13.75
4
1
0.28
1
468.15
5
1
14.54
4
1
0.29
6
3
1
Principal objective of the work
GPC
TRC
8/11/2011
1
Mass density, kg/m3
VIBTUB:UFactor:12
Liquid
Direct value, X
1
Data file compiler
Propagation of evaluated standard uncertainties
95
Liquid
1
Pressure, kPa
Liquid
101.325
6
1
Temperature, K
Liquid
1
278.15
5
1
1072.22
6
1
0.94
1
288.15
5
1
1066.15
6
1
0.91
1
298.15
5
1
1059.62
6
1
0.88
1
308.15
5
1
1053.35
6
1
0.85
1
318.15
5
1
1047.26
6
1
0.82
1
328.15
5
1
1040.87
6
1
0.78
1
338.15
5
1
1034.72
6
1
0.75
7
4
1
Principal objective of the work
GPC
TRC
8/11/2011
1
Electrical conductivity, S/m
Alternating current cell with electrodes
Liquid
Direct value, X
1
Data file compiler
Propagation of evaluated standard uncertainties
95
Liquid
1
Pressure, kPa
Liquid
101.325
6
1
Temperature, K
Liquid
1
268.15
5
1
0.0539
3
1
0.0005
1
278.15
5
1
0.1038
4
1
0.001
1
288.15
5
1
0.1808
4
1
0.0018
1
298.15
5
1
0.29
3
1
0.003
1
308.15
5
1
0.436
3
1
0.004
1
318.15
5
1
0.621
3
1
0.006
1
328.15
5
1
0.848
3
1
0.008
1
338.15
5
1
1.117
4
1
0.011
1
348.15
5
1
1.426
4
1
0.014
1
358.15
5
1
1.775
4
1
0.018
1
368.15
5
1
2.16
3
1
0.02
1
378.15
5
1
2.6
3
1
0.03
1
388.15
5
1
3.04
3
1
0.03
1
398.15
5
1
3.52
3
1
0.04
1
408.15
5
1
4.03
3
1
0.04
1
418.15
5
1
4.56
3
1
0.05
1
428.15
5
1
5.12
3
1
0.05
1
438.15
5
1
5.69
3
1
0.06
1
448.15
5
1
6.28
3
1
0.06
1
458.15
5
1
6.88
3
1
0.07
1
468.15
5
1
7.5
3
1
0.08
8
4
1
Principal objective of the work
GPC
TRC
8/11/2011
1
Mass density, kg/m3
VIBTUB:UFactor:12
Liquid
Direct value, X
1
Data file compiler
Propagation of evaluated standard uncertainties
95
Liquid
1
Pressure, kPa
Liquid
101.325
6
1
Temperature, K
Liquid
1
278.15
5
1
1313.19
6
1
2.21
1
288.15
5
1
1305.51
6
1
2.17
1
298.15
5
1
1297.43
6
1
2.13
1
308.15
5
1
1289.31
6
1
2.09
1
318.15
5
1
1281.61
6
1
2.05
1
328.15
5
1
1273.62
6
1
2.01
1
338.15
5
1
1265.83
6
1
1.97