2
0
2009
li
zha
1
journal
Original
Li, Q.[Qunsheng]
Zhang, J.[Jiguo]
Lei, Z.[Zhigang]
Zhu, J.[Jianjun]
Xing, F.[Fengying]
J. Chem. Eng. Data
2009
2020-09-29
Isobaric Vapor-Liquid Equilibrium for Ethyl Acetate + Ethanol + 1-Ethyl-3-methylimidazolium Tetrafluoroborate
Isobaric vapor-liquid equilibrium (VLE) data for ethyl acetate (1) + ethanol (2) containing ionic liquid (IL) 1-ethyl-3-methylimidazolium tetrafluoroborate ([EMIM]+[BF4]-) (3) at atmospheric pressure (101.32 kPa) were measured with a modified Othmer still. It was observed that the VLE data containing the IL were obviously different from that of the IL-free system. The IL investigated showed a notable salting-out effect, which enhanced the relative volatility of ethyl acetate to ethanol and gave rise to the elimination of the azeotropic point at a specific IL mole fraction. It was found that the salting-out effect followed the order of x3 ) 0.30 greater than x3 ) 0.20 greater than x3 ) 0.07. The measured ternary data were correlated using the NRTL model.
10.1021/je800175s
2
54
193-197
1
InChI=1S/C2H6O/c1-2-3/h3H,2H2,1H3
LFQSCWFLJHTTHZ-UHFFFAOYSA-N
ethanol
ethyl alcohol
C2H6O
1
Commercial source
1
None used
2
99.8
3
Gas chromatography
2
InChI=1S/C4H8O2/c1-3-6-4(2)5/h3H2,1-2H3
XEKOWRVHYACXOJ-UHFFFAOYSA-N
ethyl acetate
ethyl ethanoate
C4H8O2
1
Commercial source
1
None used
2
99.8
3
Gas chromatography
3
InChI=1S/C6H11N2.BF4/c1-3-8-5-4-7(2)6-8;2-1(3,4)5/h4-6H,3H2,1-2H3;/q+1;-1
CUNYTRQQXKCRTJ-UHFFFAOYSA-N
1-ethyl-3-methylimidazolium tetrafluoroborate
1-ethyl-3-methyl-1H-imidazol-3-ium tetrafluoroborate
1-ethyl-3-methylimidazolium tetrafluoroborate [EMIM][BF4]
C6H11BF4N2
1
Synthesized by others
1
Dried by vacuum heating
2
98
2
HPLC
3
0.5
1
Karl Fischer titration
1
1
1
2
1
Principal objective of the work
JAB
TRC
2/24/2009
1
Boiling temperature at pressure P, K
Ebulliometric method (Recirculating still)
Liquid
Direct value, X
1
Data file compiler
Propagation of evaluated standard uncertainties
95
Liquid
Gas
1
Pressure, kPa
Liquid
101.32
5
1
Mole fraction
2
Liquid
1
0
2
1
351.46
5
1
0.22
1
0.049
2
1
350.13
5
1
0.33
1
0.107
3
1
348.85
5
1
0.3
1
0.195
3
1
347.04
5
1
0.25
1
0.323
3
1
346.13
5
1
0.23
1
0.418
3
1
345.46
5
1
0.23
1
0.517
3
1
345.06
5
1
0.22
1
0.61
3
1
345
5
1
0.22
1
0.709
3
1
345.36
5
1
0.22
1
0.805
3
1
345.94
5
1
0.24
1
0.913
3
1
347.55
5
1
0.28
1
0.962
3
1
348.86
5
1
0.38
1
1
4
1
350.25
5
1
0.22
2
1
1
2
1
Principal objective of the work
JAB
TRC
2/24/2009
1
Mole fraction
CHROM:UFactor:4
2
Gas
Direct value, X
1
Data file compiler
Propagation of evaluated standard uncertainties
95
Gas
Liquid
1
Pressure, kPa
Liquid
101.32
5
1
Mole fraction
2
Liquid
1
0
2
1
0
2
1
0.001
1
0.049
2
1
0.106
3
1
0.009
1
0.107
3
1
0.192
3
1
0.009
1
0.195
3
1
0.299
3
1
0.012
1
0.323
3
1
0.389
3
1
0.015
1
0.418
3
1
0.468
3
1
0.018
1
0.517
3
1
0.53
3
1
0.018
1
0.61
3
1
0.592
3
1
0.015
1
0.709
3
1
0.654
3
1
0.013
1
0.805
3
1
0.73
3
1
0.011
1
0.913
3
1
0.836
3
1
0.008
1
0.962
3
1
0.924
3
1
0.009
1
1
4
1
1
4
1
0.001
3
1
1
2
1
3
1
Principal objective of the work
JAB
TRC
2/24/2009
1
Boiling temperature at pressure P, K
Ebulliometric method (Recirculating still)
Liquid
Direct value, X
1
Data file compiler
Propagation of evaluated standard uncertainties
95
Liquid
Gas
1
Pressure, kPa
Liquid
101.32
5
1
Mole fraction
3
Liquid
2
Mole fraction
2
Liquid
1
0.007099
4
2
0.764
3
1
347.8
5
1
0.95
1
0.007144
4
2
0.732
3
1
346.94
5
1
0.86
1
0.007157
4
2
0.607
3
1
346.36
5
1
0.35
1
0.007174
4
2
0.696
3
1
346.5
5
1
0.87
1
0.007176
4
2
0.195
3
1
348.6
5
1
0.71
1
0.007176
4
2
0.51
3
1
346.3
5
1
0.44
1
0.007178
4
2
0.309
3
1
347.35
5
1
0.68
1
0.00718
4
2
0.95
3
1
350.15
5
1
1.36
1
0.00719
4
2
0.893
3
1
349.24
5
1
1.12
1
0.007198
4
2
0.102
3
1
350.25
5
1
0.96
1
0.007232
4
2
0.415
3
1
346.55
5
1
0.54
1
0.007235
4
2
0.653
3
1
346.44
5
1
0.41
1
0.019938
5
2
0.65
3
1
347.55
5
1
0.72
1
0.020012
5
2
0.903
3
1
353
5
1
1.28
1
0.020094
5
2
0.948
3
1
354.46
5
1
1.44
1
0.02011
5
2
0.092
2
1
353.45
5
1
1.27
1
0.020125
5
2
0.619
3
1
347.27
5
1
0.62
1
0.020126
5
2
0.717
3
1
349.5
5
1
1.18
1
0.020135
5
2
0.192
3
1
351.05
5
1
1.15
1
0.020244
5
2
0.291
3
1
349.73
5
1
1.04
1
0.02026
5
2
0.517
3
1
347.65
5
1
0.7
1
0.020262
5
2
0.41
3
1
348.35
5
1
0.78
1
0.020577
5
2
0.681
3
1
348.25
5
1
0.94
1
0.02751
5
2
0.91
3
1
356.15
5
1
1.63
1
0.0276
5
2
0.872
3
1
355.55
5
1
1.62
1
0.028003
5
2
0.774
3
1
354.54
5
1
1.53
1
0.028065
5
2
0.705
3
1
351.75
5
1
1.75
1
0.028193
5
2
0.628
3
1
350.15
5
1
1.31
1
0.028198
5
2
0.613
3
1
349.66
5
1
1.31
1
0.028516
5
2
0.53
3
1
349.95
5
1
1.21
1
0.028982
5
2
0.412
3
1
350.75
5
1
1.43
1
0.029497
5
2
0.326
3
1
353.1
5
1
1.62
1
0.029748
5
2
0.213
3
1
354.84
5
1
1.89
1
0.029862
5
2
0.098
2
1
357.54
5
1
1.75
4
1
1
2
1
3
1
Principal objective of the work
JAB
TRC
2/24/2009
1
Mole fraction
CHROM:UFactor:4
2
Gas
Direct value, X
1
Data file compiler
Propagation of evaluated standard uncertainties
95
Gas
Liquid
1
Pressure, kPa
Gas
101.32
5
1
Mole fraction
3
Liquid
2
Mole fraction
2
Liquid
1
0.007099
4
2
0.764
3
1
0.771
3
1
0.017
1
0.007144
4
2
0.732
3
1
0.744
3
1
0.017
1
0.007157
4
2
0.607
3
1
0.641
3
1
0.022
1
0.007174
4
2
0.696
3
1
0.714
3
1
0.018
1
0.007176
4
2
0.195
3
1
0.315
3
1
0.015
1
0.007176
4
2
0.51
3
1
0.57
3
1
0.023
1
0.007178
4
2
0.309
3
1
0.431
3
1
0.02
1
0.00718
4
2
0.95
3
1
0.941
3
1
0.008
1
0.00719
4
2
0.893
3
1
0.881
3
1
0.009
1
0.007198
4
2
0.102
3
1
0.191
3
1
0.009
1
0.007232
4
2
0.415
3
1
0.51
3
1
0.023
1
0.007235
4
2
0.653
3
1
0.674
3
1
0.02
1
0.019938
5
2
0.65
3
1
0.725
3
1
0.02
1
0.020012
5
2
0.903
3
1
0.915
3
1
0.01
1
0.020094
5
2
0.948
3
1
0.953
3
1
0.008
1
0.02011
5
2
0.092
2
1
0.18
3
1
0.01
1
0.020125
5
2
0.619
3
1
0.704
3
1
0.021
1
0.020126
5
2
0.717
3
1
0.775
3
1
0.018
1
0.020135
5
2
0.192
3
1
0.324
3
1
0.014
1
0.020244
5
2
0.291
3
1
0.444
3
1
0.019
1
0.02026
5
2
0.517
3
1
0.631
3
1
0.022
1
0.020262
5
2
0.41
3
1
0.545
3
1
0.022
1
0.020577
5
2
0.681
3
1
0.749
3
1
0.018
1
0.02751
5
2
0.91
3
1
0.937
3
1
0.011
1
0.0276
5
2
0.872
3
1
0.911
3
1
0.011
1
0.028003
5
2
0.774
3
1
0.844
3
1
0.018
1
0.028065
5
2
0.705
3
1
0.8
3
1
0.02
1
0.028193
5
2
0.628
3
1
0.747
3
1
0.021
1
0.028198
5
2
0.613
3
1
0.737
3
1
0.021
1
0.028516
5
2
0.53
3
1
0.673
3
1
0.019
1
0.028982
5
2
0.412
3
1
0.577
3
1
0.02
1
0.029497
5
2
0.326
3
1
0.495
3
1
0.02
1
0.029748
5
2
0.213
3
1
0.369
3
1
0.015
1
0.029862
5
2
0.098
2
1
0.207
3
1
0.012