2
0
2011
ren
wan
0
journal
Original
Ren, Y.[Yingqian]
Wang, Y.[Yue]
Liu, G.[Guangming]
Peng, C.[Changjun]
Liu, H.[Honglai]
Hu, Y.[Ying]
J. Chem. Eng. Data
2011
2020-09-29
Solubilities of MCl (M = Na, K) in Aqueous Systems Containing the Ionic Liquid [Bmim]Cl from (298.15 to 343.15) K
Solubilities of potassium chloride (KCl) and sodium chloride (NaCl) in aqueous systems containing the ionic liquid 1-butyl-3-methylimidazolium chloride ([Bmim]Cl) were determined by cloud-point measurements using the laser beam scattering method in a temperature range of (298.15 to 343.15) K at atmospheric pressure. The solubility data were correlated and calculated with the Pitzer model modified by Harvie and Weare. The interaction parameters of the mixed-electrolyte solution were obtained using experimental results. It was found that the addition of [Bmim]Cl leads to salting-out, triggering a marked decrease of salt solubility in the aqueous solutions. The results also show that [Bmim]Cl has different salting-out ratios on KCl and NaCl in the mass-fraction range of w[Bmim]Cl = (0.025 to 0.20). It is also shown that the modified Pitzer model gives a satisfactory prediction for the solubilities of KCl and NaCl in aqueous systems containing ionic liquid [Bmim]Cl.
Solubility
Modified Pitzer Model
Ionic liquid
Alkali chloride
10.1021/je1010592
4
56
1341-1347
1
InChI=1S/ClH.K/h1H;/q;+1/p-1
WCUXLLCKKVVCTQ-UHFFFAOYSA-M
potassium chloride
ClK
1
Commercial source
1
99.8
3
Stated by supplier
2
Dried by vacuum heating
2
InChI=1S/ClH.Na/h1H;/q;+1/p-1
FAPWRFPIFSIZLT-UHFFFAOYSA-M
sodium chloride
ClNa
1
Commercial source
1
99.8
3
Stated by supplier
2
Dried by vacuum heating
3
InChI=1S/C8H15N2.ClH/c1-3-4-5-10-7-6-9(2)8-10;/h6-8H,3-5H2,1-2H3;1H/q+1;/p-1
FHDQNOXQSTVAIC-UHFFFAOYSA-M
1-butyl-3-methylimidazolium chloride
1-n-butyl-3-methylimidazolium chloride
C8H15ClN2
1
Commercial source
1
99
2
Stated by supplier
2
Dried by vacuum heating
4
InChI=1S/H2O/h1H2
XLYOFNOQVPJJNP-UHFFFAOYSA-N
water
H2O
1
Commercial source
1
99.9
3
Stated by supplier
1
1
1
4
1
Principal objective of the work
RDC
XXX
5/13/2011
1
Molality, mol/kg
Cloud point method
Liquid
Direct value, X
4
1
Data file compiler
Propagation of evaluated standard uncertainties
95
Liquid
Crystal
1
1
Pressure, kPa
Liquid
101
3
1
Temperature, K
Liquid
1
298.15
5
1
4.795
4
1
0.049
1
308.15
5
1
5.162
4
1
0.053
1
313.15
5
1
5.383
4
1
0.055
1
318.15
5
1
5.564
4
1
0.057
1
328.15
5
1
5.94
4
1
0.061
1
333.15
5
1
6.148
4
1
0.063
1
343.15
5
1
6.51
4
1
0.067
2
2
1
4
1
Principal objective of the work
RDC
XXX
5/13/2011
1
Molality, mol/kg
Cloud point method
Liquid
Direct value, X
4
1
Data file compiler
Propagation of evaluated standard uncertainties
95
Liquid
Crystal
2
1
Pressure, kPa
Liquid
101
3
1
Temperature, K
Liquid
1
298.15
5
1
6.16
4
1
0.016
1
308.15
5
1
6.194
4
1
0.017
1
313.15
5
1
6.229
4
1
0.017
1
318.15
5
1
6.248
4
1
0.017
1
328.15
5
1
6.304
4
1
0.017
1
333.15
5
1
6.348
4
1
0.017
1
343.15
5
1
6.425
4
1
0.017
3
1
1
4
1
3
1
Principal objective of the work
PAA
XXX
5/13/2011
1
Molality, mol/kg
Cloud point method
1
Liquid
Direct value, X
4
3
1
Data file compiler
Propagation of evaluated standard uncertainties
95
Liquid
Crystal
1
1
Pressure, kPa
Liquid
101
3
1
Solvent: Mass fraction
3
Liquid
2
Temperature, K
Liquid
1
0
2
2
298.15
5
1
4.795
4
1
0.014
1
0
2
2
308.15
5
1
5.162
4
1
0.015
1
0
2
2
313.15
5
1
5.383
4
1
0.015
1
0
2
2
318.15
5
1
5.564
4
1
0.015
1
0
2
2
328.15
5
1
5.94
4
1
0.016
1
0
2
2
333.15
5
1
6.148
4
1
0.016
1
0
2
2
343.15
5
1
6.51
4
1
0.017
1
0.01
1
2
298.15
5
1
4.719
4
1
0.103
1
0.01
1
2
308.15
5
1
5.004
4
1
0.16
1
0.01
1
2
313.15
5
1
5.245
4
1
0.161
1
0.01
1
2
318.15
5
1
5.436
4
1
0.185
1
0.01
1
2
328.15
5
1
5.785
4
1
0.232
1
0.01
1
2
333.15
5
1
5.955
4
1
0.25
1
0.01
1
2
343.15
5
1
6.201
4
1
0.207
1
0.025
2
2
298.15
5
1
4.544
4
1
0.133
1
0.025
2
2
308.15
5
1
4.772
4
1
0.118
1
0.025
2
2
313.15
5
1
4.983
4
1
0.142
1
0.025
2
2
318.15
5
1
5.114
4
1
0.151
1
0.025
2
2
328.15
5
1
5.376
4
1
0.18
1
0.025
2
2
333.15
5
1
5.533
4
1
0.201
1
0.025
2
2
343.15
5
1
5.981
4
1
0.196
1
0.05
1
2
298.15
5
1
4.195
4
1
0.141
1
0.05
1
2
308.15
5
1
4.532
4
1
0.138
1
0.05
1
2
313.15
5
1
4.659
4
1
0.125
1
0.05
1
2
318.15
5
1
4.812
4
1
0.129
1
0.05
1
2
328.15
5
1
5.034
4
1
0.13
1
0.05
1
2
333.15
5
1
5.129
4
1
0.134
1
0.05
1
2
343.15
5
1
5.431
4
1
0.165
1
0.1
2
2
298.15
5
1
3.49
4
1
0.123
1
0.1
2
2
308.15
5
1
3.772
4
1
0.129
1
0.1
2
2
313.15
5
1
4.047
4
1
0.125
1
0.1
2
2
318.15
5
1
4.154
4
1
0.123
1
0.1
2
2
328.15
5
1
4.396
4
1
0.119
1
0.1
2
2
333.15
5
1
4.518
4
1
0.116
1
0.1
2
2
343.15
5
1
4.718
4
1
0.123
1
0.125
3
2
298.15
5
1
3.297
4
1
0.078
1
0.125
3
2
308.15
5
1
3.595
4
1
0.07
1
0.125
3
2
313.15
5
1
3.753
4
1
0.097
1
0.125
3
2
318.15
5
1
3.913
4
1
0.1
1
0.125
3
2
328.15
5
1
4.174
4
1
0.103
1
0.125
3
2
333.15
5
1
4.282
4
1
0.103
1
0.125
3
2
343.15
5
1
4.544
4
1
0.084
1
0.15
2
2
298.15
5
1
3.103
4
1
0.082
1
0.15
2
2
308.15
5
1
3.43
4
1
0.085
1
0.15
2
2
313.15
5
1
3.564
4
1
0.093
1
0.15
2
2
318.15
5
1
3.658
4
1
0.099
1
0.15
2
2
328.15
5
1
3.886
4
1
0.101
1
0.15
2
2
333.15
5
1
4.007
4
1
0.099
1
0.15
2
2
343.15
5
1
4.302
4
1
0.1
1
0.175
3
2
298.15
5
1
2.893
4
1
0.093
1
0.175
3
2
308.15
5
1
3.174
4
1
0.1
1
0.175
3
2
313.15
5
1
3.29
4
1
0.106
1
0.175
3
2
318.15
5
1
3.423
4
1
0.106
1
0.175
3
2
328.15
5
1
3.671
4
1
0.108
1
0.175
3
2
333.15
5
1
3.792
4
1
0.108
1
0.175
3
2
343.15
5
1
4.047
4
1
0.098
1
0.2
2
2
298.15
5
1
2.719
4
1
0.077
1
0.2
2
2
308.15
5
1
2.935
4
1
0.087
1
0.2
2
2
313.15
5
1
3.037
4
1
0.079
1
0.2
2
2
318.15
5
1
3.13
4
1
0.093
1
0.2
2
2
328.15
5
1
3.349
4
1
0.104
1
0.2
2
2
333.15
5
1
3.473
4
1
0.11
1
0.2
2
2
343.15
5
1
3.792
4
1
0.097
1
0.25
2
2
298.15
5
1
2.323
4
1
0.08
1
0.25
2
2
308.15
5
1
2.521
4
1
0.078
1
0.25
2
2
313.15
5
1
2.682
4
1
0.081
1
0.25
2
2
318.15
5
1
2.711
4
1
0.08
1
0.25
2
2
328.15
5
1
2.879
4
1
0.095
1
0.25
2
2
333.15
5
1
2.964
4
1
0.094
1
0.25
2
2
343.15
5
1
3.322
4
1
0.095
4
2
1
4
1
3
1
Principal objective of the work
PAA
XXX
5/13/2011
1
Molality, mol/kg
Cloud point method
2
Liquid
Direct value, X
4
3
1
Data file compiler
Propagation of evaluated standard uncertainties
95
Liquid
Crystal
2
1
Pressure, kPa
Liquid
101
3
1
Solvent: Mass fraction
3
Liquid
2
Temperature, K
Liquid
1
0
2
2
298.15
5
1
6.16
4
1
0.016
1
0
2
2
308.15
5
1
6.194
4
1
0.017
1
0
2
2
313.15
5
1
6.229
4
1
0.017
1
0
2
2
318.15
5
1
6.248
4
1
0.017
1
0
2
2
328.15
5
1
6.304
4
1
0.017
1
0
2
2
333.15
5
1
6.348
4
1
0.017
1
0
2
2
343.15
5
1
6.425
4
1
0.017
1
0.01
1
2
298.15
5
1
5.871
4
1
0.235
1
0.01
1
2
308.15
5
1
5.896
4
1
0.237
1
0.01
1
2
313.15
5
1
5.914
4
1
0.241
1
0.01
1
2
318.15
5
1
5.935
4
1
0.242
1
0.01
1
2
328.15
5
1
5.955
4
1
0.254
1
0.01
1
2
333.15
5
1
5.974
4
1
0.262
1
0.01
1
2
343.15
5
1
6.004
4
1
0.283
1
0.025
2
2
298.15
5
1
5.568
4
1
0.133
1
0.025
2
2
308.15
5
1
5.59
4
1
0.131
1
0.025
2
2
313.15
5
1
5.611
4
1
0.13
1
0.025
2
2
318.15
5
1
5.629
4
1
0.132
1
0.025
2
2
328.15
5
1
5.65
4
1
0.133
1
0.025
2
2
333.15
5
1
5.671
4
1
0.133
1
0.025
2
2
343.15
5
1
5.702
4
1
0.136
1
0.05
1
2
298.15
5
1
5.325
4
1
0.07
1
0.05
1
2
308.15
5
1
5.348
4
1
0.069
1
0.05
1
2
313.15
5
1
5.368
4
1
0.068
1
0.05
1
2
318.15
5
1
5.383
4
1
0.068
1
0.05
1
2
328.15
5
1
5.402
4
1
0.069
1
0.05
1
2
333.15
5
1
5.419
4
1
0.069
1
0.05
1
2
343.15
5
1
5.45
4
1
0.07
1
0.1
2
2
298.15
5
1
5.039
4
1
0.065
1
0.1
2
2
308.15
5
1
5.062
4
1
0.064
1
0.1
2
2
313.15
5
1
5.086
4
1
0.064
1
0.1
2
2
318.15
5
1
5.103
4
1
0.064
1
0.1
2
2
328.15
5
1
5.12
4
1
0.064
1
0.1
2
2
333.15
5
1
5.14
4
1
0.064
1
0.1
2
2
343.15
5
1
5.171
4
1
0.065
1
0.125
3
2
298.15
5
1
4.843
4
1
0.115
1
0.125
3
2
308.15
5
1
4.863
4
1
0.107
1
0.125
3
2
313.15
5
1
4.885
4
1
0.108
1
0.125
3
2
318.15
5
1
4.901
4
1
0.108
1
0.125
3
2
328.15
5
1
4.919
4
1
0.108
1
0.125
3
2
333.15
5
1
4.937
4
1
0.109
1
0.125
3
2
343.15
5
1
4.967
4
1
0.109
1
0.15
2
2
298.15
5
1
4.466
4
1
0.182
1
0.15
2
2
308.15
5
1
4.531
4
1
0.177
1
0.15
2
2
313.15
5
1
4.552
4
1
0.177
1
0.15
2
2
318.15
5
1
4.566
4
1
0.177
1
0.15
2
2
328.15
5
1
4.583
4
1
0.177
1
0.15
2
2
333.15
5
1
4.6
4
1
0.178
1
0.15
2
2
343.15
5
1
4.63
4
1
0.177
1
0.175
3
2
298.15
5
1
3.936
4
1
0.188
1
0.175
3
2
308.15
5
1
3.983
4
1
0.197
1
0.175
3
2
313.15
5
1
4.004
4
1
0.196
1
0.175
3
2
318.15
5
1
4.019
4
1
0.195
1
0.175
3
2
328.15
5
1
4.037
4
1
0.194
1
0.175
3
2
333.15
5
1
4.052
4
1
0.194
1
0.175
3
2
343.15
5
1
4.083
4
1
0.189
1
0.2
2
2
298.15
5
1
3.527
4
1
0.152
1
0.2
2
2
308.15
5
1
3.55
4
1
0.147
1
0.2
2
2
313.15
5
1
3.573
4
1
0.147
1
0.2
2
2
318.15
5
1
3.593
4
1
0.147
1
0.2
2
2
328.15
5
1
3.613
4
1
0.147
1
0.2
2
2
333.15
5
1
3.633
4
1
0.146
1
0.2
2
2
343.15
5
1
3.664
4
1
0.147
1
0.25
2
2
298.15
5
1
2.795
4
1
0.147
1
0.25
2
2
308.15
5
1
2.862
4
1
0.139
1
0.25
2
2
313.15
5
1
2.883
4
1
0.139
1
0.25
2
2
318.15
5
1
2.901
4
1
0.14
1
0.25
2
2
328.15
5
1
2.92
4
1
0.138
1
0.25
2
2
333.15
5
1
2.94
4
1
0.139
1
0.25
2
2
343.15
5
1
2.971
4
1
0.139