2
0
2010
sak
jal
0
journal
Original
Sakhaeinia, H.[Hossein]
Jalili, A. H.[Amir Hossein]
Taghikhani, V.[Vahid]
Safekordi, A. A.[Ali Akbar]
J. Chem. Eng. Data
2010
2020-09-29
Solubility of H2S in Ionic Liquids 1-Ethyl-3-methylimidazolium Hexafluorophosphate ([emim][PF6]) and 1-Ethyl-3-methylimidazolium Bis(trifluoromethyl)sulfonylimide ([emim][Tf2N])
The solubility of hydrogen sulfide gas in ionic liquids (ILs) 1-ethyl-3-methylimidazolium hexafluorophosphate ([emim][PF6]) at temperatures from (333.15 to 363.15) K and 1-ethyl-3-methylimidazolium bis(trifluoromethyl)sulfonylimide ([emim][Tf2N]) at temperatures ranging from (303.15 to 353.15) K and pressures up to about 2.0 MPa was measured using a volumetric based static apparatus. The solubility data were correlated using two models: the Krichevsky-Kasarnovsky (KK) equation, and the extended Henry s law combined with the Pitzer s virial expansion for the excess Gibbs energy. Henry s law constants (at zero pressure) were obtained at different temperatures from the obtained experimental solubility data. Using the solubility data, the partial molar thermodynamic functions of solution, that is, Gibbs energy, enthalpy, and entropy were calculated. A comparison showed that the solubility of H2S in [emim][Tf2N] is greater than [emim][PF6].
10.1021/je100794k
12
55
5839-5845
1
InChI=1S/H2S/h1H2
RWSOTUBLDIXVET-UHFFFAOYSA-N
hydrogen sulfide
H2S
1
Commercial source
1
99.95
4
Stated by supplier
2
InChI=1S/C6H11N2.F6P/c1-3-8-5-4-7(2)6-8;1-7(2,3,4,5)6/h4-6H,3H2,1-2H3;/q+1;-1
DPDAKOVGQUGTHH-UHFFFAOYSA-N
1-ethyl-3-methylimidazolium hexafluorophosphate
C6H11F6N2P
1
Commercial source
1
97
2
Stated by supplier
2
Dried by vacuum heating
3
0.01
1
Karl Fischer titration
3
InChI=1S/C6H11N2.C2F6NO4S2/c1-3-8-5-4-7(2)6-8;3-1(4,5)14(10,11)9-15(12,13)2(6,7)8/h4-6H,3H2,1-2H3;/q+1;-1
LRESCJAINPKJTO-UHFFFAOYSA-N
1-ethyl-3-methylimidazolium bis((trifluoromethyl)sulfonyl)imide
1-ethyl-3-methylimidazolium 1,1,1-trifluoro-N-[(trifluoromethyl)sulfonyl]methanesulfonamide
1-ethyl-3-methylimidazolium bis((trifluoromethyl)sulfonyl)amide
1-ethyl-3-methylimidazolium bis((trifluoromethyl)sulfonyl)imide [EMIM][NTf2]
1-ethyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide
C8H11F6N3O4S2
1
Commercial source
1
99
2
Stated by supplier
2
Dried by vacuum heating
3
0.01
1
Karl Fischer titration
1
1
1
2
1
Principal objective of the work
GPC
XXX
12/22/2010
1
Mole fraction
Volumetric based static apparatus
1
Liquid
Direct value, X
1
Data file compiler
Propagation of evaluated standard uncertainties
95
Liquid
Gas
1
Temperature, K
Liquid
2
Pressure, kPa
Liquid
1
333.15
5
2
144.9
4
1
0.038
2
1
0.002
1
333.15
5
2
297
4
1
0.077
2
1
0.002
1
333.15
5
2
483
4
1
0.124
3
1
0.004
1
333.15
5
2
685.2
4
1
0.172
3
1
0.004
1
333.15
5
2
922.7
4
1
0.224
3
1
0.006
1
333.15
5
2
1107
4
1
0.265
3
1
0.006
1
333.15
5
2
1369
4
1
0.318
3
1
0.008
1
333.15
5
2
1580
3
1
0.359
3
1
0.01
1
338.15
5
2
149.9
4
1
0.037
2
1
0.002
1
338.15
5
2
307.3
4
1
0.075
2
1
0.002
1
338.15
5
2
500.1
4
1
0.119
3
1
0.002
1
338.15
5
2
710.7
4
1
0.166
3
1
0.004
1
338.15
5
2
956.6
4
1
0.218
3
1
0.006
1
338.15
5
2
1149
4
1
0.257
3
1
0.006
1
338.15
5
2
1423
4
1
0.308
3
1
0.008
1
338.15
5
2
1644
4
1
0.348
3
1
0.008
1
343.15
5
2
154.1
4
1
0.036
2
1
0.002
1
343.15
5
2
316.9
4
1
0.072
2
1
0.002
1
343.15
5
2
516
4
1
0.116
3
1
0.002
1
343.15
5
2
732
4
1
0.161
3
1
0.004
1
343.15
5
2
990.1
4
1
0.212
3
1
0.006
1
343.15
5
2
1189
4
1
0.249
3
1
0.006
1
343.15
5
2
1474
4
1
0.3
3
1
0.008
1
343.15
5
2
1705
4
1
0.339
3
1
0.008
1
353.15
5
2
162.5
4
1
0.033
2
1
0.002
1
353.15
5
2
335.6
4
1
0.068
2
1
0.002
1
353.15
5
2
546.2
4
1
0.109
3
1
0.002
1
353.15
5
2
778.2
4
1
0.152
3
1
0.004
1
353.15
5
2
1052
4
1
0.2
3
1
0.004
1
353.15
5
2
1265
4
1
0.236
3
1
0.006
1
353.15
5
2
1567
4
1
0.285
3
1
0.006
1
353.15
5
2
1822
4
1
0.322
3
1
0.008
1
363.15
5
2
172.5
4
1
0.032
2
1
0.002
1
363.15
5
2
353.6
4
1
0.064
2
1
0.002
1
363.15
5
2
577
4
1
0.102
3
1
0.004
1
363.15
5
2
822.2
4
1
0.143
3
1
0.004
1
363.15
5
2
1112
4
1
0.187
3
1
0.006
1
363.15
5
2
1337
4
1
0.223
3
1
0.006
1
363.15
5
2
1664
4
1
0.27
3
1
0.008
1
363.15
5
2
1933
4
1
0.306
3
1
0.01
2
1
1
3
1
Principal objective of the work
GPC
XXX
12/22/2010
1
Mole fraction
Volumetric based static apparatus
1
Liquid
Direct value, X
1
Data file compiler
Propagation of evaluated standard uncertainties
95
Liquid
Gas
1
Temperature, K
Liquid
2
Pressure, kPa
Liquid
1
303.15
5
2
107.7
4
1
0.07
2
1
0.002
1
303.15
5
2
214.5
4
1
0.136
3
1
0.004
1
303.15
5
2
362.9
4
1
0.221
3
1
0.006
1
303.15
5
2
581.6
4
1
0.33
3
1
0.008
1
303.15
5
2
811.5
4
1
0.427
3
1
0.01
1
303.15
5
2
1025
4
1
0.506
3
1
0.012
1
303.15
5
2
1244
4
1
0.567
3
1
0.012
1
303.15
5
2
1444
4
1
0.609
3
1
0.014
1
313.15
5
2
118.6
4
1
0.065
2
1
0.002
1
313.15
5
2
236.5
4
1
0.126
3
1
0.002
1
313.15
5
2
401.7
4
1
0.205
3
1
0.004
1
313.15
5
2
644.5
4
1
0.309
3
1
0.008
1
313.15
5
2
907.8
4
1
0.407
3
1
0.01
1
313.15
5
2
1152
4
1
0.481
3
1
0.012
1
313.15
5
2
1395
4
1
0.541
3
1
0.012
1
313.15
5
2
1628
4
1
0.584
3
1
0.014
1
323.15
5
2
129
4
1
0.059
2
1
0.002
1
323.15
5
2
257.3
4
1
0.118
3
1
0.004
1
323.15
5
2
437.8
4
1
0.19
3
1
0.006
1
323.15
5
2
706.3
4
1
0.291
3
1
0.01
1
323.15
5
2
999.8
4
1
0.387
3
1
0.014
1
323.15
5
2
1274
4
1
0.465
3
1
0.016
1
323.15
5
2
1523
4
1
0.523
3
1
0.018
1
333.15
5
2
138.9
4
1
0.056
2
1
0.002
1
333.15
5
2
277.3
4
1
0.108
3
1
0.004
1
333.15
5
2
473
4
1
0.178
3
1
0.006
1
333.15
5
2
765.9
4
1
0.273
3
1
0.01
1
333.15
5
2
1087
4
1
0.363
3
1
0.012
1
333.15
5
2
1391
4
1
0.438
3
1
0.016
1
333.15
5
2
1686
4
1
0.496
3
1
0.018
1
343.15
5
2
148.3
4
1
0.052
2
1
0.002
1
343.15
5
2
296.3
4
1
0.101
3
1
0.004
1
343.15
5
2
506
4
1
0.167
3
1
0.008
1
343.15
5
2
821.4
4
1
0.258
3
1
0.012
1
343.15
5
2
1169
4
1
0.345
3
1
0.016
1
343.15
5
2
1499
4
1
0.416
3
1
0.018
1
353.15
5
2
156.9
4
1
0.049
2
1
0.002
1
353.15
5
2
314.1
4
1
0.095
2
1
0.004
1
353.15
5
2
537.5
4
1
0.158
3
1
0.008
1
353.15
5
2
874.5
4
1
0.243
3
1
0.012
1
353.15
5
2
1248
4
1
0.328
3
1
0.014
1
353.15
5
2
1606
4
1
0.398
3
1
0.018