2
0
2011
red
gwa
0
journal
Original
Reddy, P.[Prashant]
Gwala, N. V. V.[Nobuhle V.]
Deenadayalu, N.[Nirmala]
Ramjugernath, D.[Deresh]
J. Chem. Thermodyn.
2011
2020-09-29
Activity coefficients at infinite dilution of organic solutes in the ionic liquid, methyl(trioctyl)ammonium thiosalicylate, [N1888][TS] by gas liquid chromatography at T = (303.15, 313.15, and 323.15) K
In this work, activity coefficients at infinite dilution have been obtained for 19 polar and non-polar organic solutes in the form of n-alkanes, cycloalkanes, 1-alkenes, 1-alkynes, aromatic compounds, and ketones in the ionic liquid methyl(trioctyl)ammonium thiosalicylate by gas liquid chromatography at three different temperatures, i.e. T = (303.15, 313.15, and 323.15) K. Two columns with different phase loadings of the ionic liquid in the stationary phase (25% and 30%) were employed to obtain activity coefficient at infinite dilution values at each temperature investigated. Partial molar excess enthalpies at infinite dilution were calculated for each of the solutes from the temperature dependency of the activity coefficient at infinite dilution values for the temperature range in this study. Selectivity values at infinite dilution were computed from the activity coefficient at infinite dilutionvalues to screen the potential candidacy of the ionic liquid for the separation of n-hexane/benzene mixtures. The results from this study have been compared to those available for several other classes of ionic liquids and commercial solvents employed in solvent-enhanced industrial separation processes.
Activity coefficient at infinite dilution
Ionic liquid
Methyl(trioctyl)ammonium thiosalicylate
Gas liquid chromatography
Extractive distillation
10.1016/j.jct.2010.12.020
5
43
754-758
1
InChI=1S/C5H10/c1-3-5-4-2/h3H,1,4-5H2,2H3
YWAKXRMUMFPDSH-UHFFFAOYSA-N
1-pentene
pent-1-ene
C5H10
1
Commercial source
1
98
2
Stated by supplier
2
InChI=1S/C6H12/c1-3-5-6-4-2/h3H,1,4-6H2,2H3
LIKMAJRDDDTEIG-UHFFFAOYSA-N
hex-1-ene
1-hexene
C6H12
1
Commercial source
1
98
2
Stated by supplier
3
InChI=1S/C8H16/c1-3-5-7-8-6-4-2/h3H,1,4-8H2,2H3
KWKAKUADMBZCLK-UHFFFAOYSA-N
oct-1-ene
1-octene
caprylene
C8H16
1
Commercial source
1
98
2
Stated by supplier
4
InChI=1S/C5H8/c1-3-5-4-2/h1H,4-5H2,2H3
IBXNCJKFFQIKKY-UHFFFAOYSA-N
1-pentyne
pent-1-yne
C5H8
1
Commercial source
1
98
2
Stated by supplier
5
InChI=1S/C6H10/c1-3-5-6-4-2/h1H,4-6H2,2H3
CGHIBGNXEGJPQZ-UHFFFAOYSA-N
1-hexyne
butylacetylene
hex-1-yne
n-butylacetylene
C6H10
1
Commercial source
1
98
2
Stated by supplier
6
InChI=1S/C8H14/c1-3-5-7-8-6-4-2/h1H,4-8H2,2H3
UMIPWJGWASORKV-UHFFFAOYSA-N
1-octyne
hexylacetylene
oct-1-yne
C8H14
1
Commercial source
1
98
2
Stated by supplier
7
InChI=1S/C5H10/c1-2-4-5-3-1/h1-5H2
RGSFGYAAUTVSQA-UHFFFAOYSA-N
cyclopentane
C5H10
1
Commercial source
1
98
2
Stated by supplier
8
InChI=1S/C6H12/c1-2-4-6-5-3-1/h1-6H2
XDTMQSROBMDMFD-UHFFFAOYSA-N
cyclohexane
C6H12
1
Commercial source
1
98
2
Stated by supplier
9
InChI=1S/C7H14/c1-2-4-6-7-5-3-1/h1-7H2
DMEGYFMYUHOHGS-UHFFFAOYSA-N
cycloheptane
C7H14
1
Commercial source
1
98
2
Stated by supplier
10
InChI=1S/C8H16/c1-2-4-6-8-7-5-3-1/h1-8H2
WJTCGQSWYFHTAC-UHFFFAOYSA-N
cyclooctane
C8H16
1
Commercial source
1
98
2
Stated by supplier
11
InChI=1S/C6H6/c1-2-4-6-5-3-1/h1-6H
UHOVQNZJYSORNB-UHFFFAOYSA-N
benzene
C6H6
1
Commercial source
1
98
2
Stated by supplier
12
InChI=1S/C7H8/c1-7-5-3-2-4-6-7/h2-6H,1H3
YXFVVABEGXRONW-UHFFFAOYSA-N
toluene
methylbenzene
C7H8
1
Commercial source
1
98
2
Stated by supplier
13
InChI=1S/C3H6O/c1-3(2)4/h1-2H3
CSCPPACGZOOCGX-UHFFFAOYSA-N
acetone
2-propanone
dimethyl ketone
propan-2-one
propanone
pyroacetic ether
C3H6O
1
Commercial source
1
98
2
Stated by supplier
14
InChI=1S/C4H8O/c1-3-4(2)5/h3H2,1-2H3
ZWEHNKRNPOVVGH-UHFFFAOYSA-N
butanone
2-butanone
butan-2-one
ethyl methyl ketone
methyl ethyl ketone
C4H8O
1
Commercial source
1
98
2
Stated by supplier
15
InChI=1S/C25H54N.C7H6O2S/c1-5-8-11-14-17-20-23-26(4,24-21-18-15-12-9-6-2)25-22-19-16-13-10-7-3;8-7(9)5-3-1-2-4-6(5)10/h5-25H2,1-4H3;1-4,10H,(H,8,9)/q+1;/p-1
NJOSLBYBLJVAMY-UHFFFAOYSA-M
methyl(trioctyl)ammonium thiosalicylate
N-methyl-N,N-dioctyloctanaminium 2-mercaptobenzoate
C32H59NO2S
1
Commercial source
1
98
2
Stated by supplier
16
InChI=1S/C5H12/c1-3-5-4-2/h3-5H2,1-2H3
OFBQJSOFQDEBGM-UHFFFAOYSA-N
pentane
n-pentane
C5H12
1
Commercial source
1
98
2
Stated by supplier
17
InChI=1S/C6H14/c1-3-5-6-4-2/h3-6H2,1-2H3
VLKZOEOYAKHREP-UHFFFAOYSA-N
hexane
n-hexane
C6H14
1
Commercial source
1
98
2
Stated by supplier
18
InChI=1S/C7H16/c1-3-5-7-6-4-2/h3-7H2,1-2H3
IMNFDUFMRHMDMM-UHFFFAOYSA-N
heptane
n-heptane
C7H16
1
Commercial source
1
98
2
Stated by supplier
19
InChI=1S/C8H18/c1-3-5-7-8-6-4-2/h3-8H2,1-2H3
TVMXDCGIABBOFY-UHFFFAOYSA-N
octane
n-octane
C8H18
1
Commercial source
1
98
2
Stated by supplier
20
InChI=1S/C9H20/c1-3-5-7-9-8-6-4-2/h3-9H2,1-2H3
BKIMMITUMNQMOS-UHFFFAOYSA-N
nonane
n-nonane
C9H20
1
Commercial source
1
98
2
Stated by supplier
1
16
1
15
1
Principal objective of the work
GPC
TRC
7/29/2011
1
Activity coefficient
Chromatography
16
Liquid
Direct value, X
Pure compound
1
Data file compiler
Propagation of evaluated standard uncertainties
95
Liquid
1
Pressure, kPa
Liquid
101
3
2
Mole fraction
16
Liquid
0
1
1
Temperature, K
Liquid
1
303.15
5
1
1.81
3
1
0.22
1
303.15
5
1
1.81
3
1
0.22
1
313.15
5
1
1.75
3
1
0.22
1
313.15
5
1
1.75
3
1
0.22
1
323.15
5
1
1.7
3
1
0.21
1
323.15
5
1
1.65
3
1
0.2
2
17
1
15
1
Principal objective of the work
GPC
TRC
7/29/2011
1
Activity coefficient
Chromatography
17
Liquid
Direct value, X
Pure compound
1
Data file compiler
Propagation of evaluated standard uncertainties
95
Liquid
1
Pressure, kPa
Liquid
101
3
2
Mole fraction
17
Liquid
0
1
1
Temperature, K
Liquid
1
303.15
5
1
2.07
3
1
0.26
1
303.15
5
1
2.07
3
1
0.26
1
313.15
5
1
1.98
3
1
0.25
1
313.15
5
1
1.96
3
1
0.24
1
323.15
5
1
1.92
3
1
0.24
1
323.15
5
1
1.87
3
1
0.23
3
18
1
15
1
Principal objective of the work
GPC
TRC
7/29/2011
1
Activity coefficient
Chromatography
18
Liquid
Direct value, X
Pure compound
1
Data file compiler
Propagation of evaluated standard uncertainties
95
Liquid
1
Pressure, kPa
Liquid
101
3
2
Mole fraction
18
Liquid
0
1
1
Temperature, K
Liquid
1
303.15
5
1
2.37
3
1
0.29
1
303.15
5
1
2.28
3
1
0.28
1
313.15
5
1
2.29
3
1
0.28
1
313.15
5
1
2.22
3
1
0.28
1
323.15
5
1
2.21
3
1
0.27
1
323.15
5
1
2.15
3
1
0.27
4
19
1
15
1
Principal objective of the work
GPC
TRC
7/29/2011
1
Activity coefficient
Chromatography
19
Liquid
Direct value, X
Pure compound
1
Data file compiler
Propagation of evaluated standard uncertainties
95
Liquid
1
Pressure, kPa
Liquid
101
3
2
Mole fraction
19
Liquid
0
1
1
Temperature, K
Liquid
1
303.15
5
1
2.77
3
1
0.34
1
303.15
5
1
2.72
3
1
0.34
1
313.15
5
1
2.68
3
1
0.33
1
313.15
5
1
2.61
3
1
0.32
1
323.15
5
1
2.55
3
1
0.32
1
323.15
5
1
2.47
3
1
0.31
5
20
1
15
1
Principal objective of the work
GPC
TRC
7/29/2011
1
Activity coefficient
Chromatography
20
Liquid
Direct value, X
Pure compound
1
Data file compiler
Propagation of evaluated standard uncertainties
95
Liquid
1
Pressure, kPa
Liquid
101
3
2
Mole fraction
20
Liquid
0
1
1
Temperature, K
Liquid
1
303.15
5
1
3.21
3
1
0.4
1
303.15
5
1
3.11
3
1
0.39
1
313.15
5
1
3.07
3
1
0.38
1
313.15
5
1
3.03
3
1
0.38
1
323.15
5
1
2.98
3
1
0.37
1
323.15
5
1
2.88
3
1
0.36
6
1
1
15
1
Principal objective of the work
GPC
TRC
7/29/2011
1
Activity coefficient
Chromatography
1
Liquid
Direct value, X
Pure compound
1
Data file compiler
Propagation of evaluated standard uncertainties
95
Liquid
1
Pressure, kPa
Liquid
101
3
2
Mole fraction
1
Liquid
0
1
1
Temperature, K
Liquid
1
303.15
5
1
1.39
3
1
0.17
1
303.15
5
1
1.4
3
1
0.17
1
313.15
5
1
1.36
3
1
0.17
1
313.15
5
1
1.36
3
1
0.17
1
323.15
5
1
1.33
3
1
0.16
1
323.15
5
1
1.28
3
1
0.16
7
2
1
15
1
Principal objective of the work
GPC
TRC
7/29/2011
1
Activity coefficient
Chromatography
2
Liquid
Direct value, X
Pure compound
1
Data file compiler
Propagation of evaluated standard uncertainties
95
Liquid
1
Pressure, kPa
Liquid
101
3
2
Mole fraction
2
Liquid
0
1
1
Temperature, K
Liquid
1
303.15
5
1
1.57
3
1
0.19
1
303.15
5
1
1.55
3
1
0.19
1
313.15
5
1
1.53
3
1
0.19
1
313.15
5
1
1.51
3
1
0.19
1
323.15
5
1
1.51
3
1
0.19
1
323.15
5
1
1.46
3
1
0.18
8
3
1
15
1
Principal objective of the work
GPC
TRC
7/29/2011
1
Activity coefficient
Chromatography
3
Liquid
Direct value, X
Pure compound
1
Data file compiler
Propagation of evaluated standard uncertainties
95
Liquid
1
Pressure, kPa
Liquid
101
3
2
Mole fraction
3
Liquid
0
1
1
Temperature, K
Liquid
1
303.15
5
1
2.09
3
1
0.26
1
303.15
5
1
2.06
3
1
0.26
1
313.15
5
1
2.06
3
1
0.26
1
313.15
5
1
2.02
3
1
0.25
1
323.15
5
1
2
3
1
0.25
1
323.15
5
1
1.93
3
1
0.24
9
4
1
15
1
Principal objective of the work
GPC
TRC
7/29/2011
1
Activity coefficient
Chromatography
4
Liquid
Direct value, X
Pure compound
1
Data file compiler
Propagation of evaluated standard uncertainties
95
Liquid
1
Pressure, kPa
Liquid
101
3
2
Mole fraction
4
Liquid
0
1
1
Temperature, K
Liquid
1
303.15
5
1
0.63
2
1
0.08
1
303.15
5
1
0.63
2
1
0.08
1
313.15
5
1
0.65
2
1
0.08
1
313.15
5
1
0.65
2
1
0.08
1
323.15
5
1
0.67
2
1
0.08
1
323.15
5
1
0.67
2
1
0.08
10
5
1
15
1
Principal objective of the work
GPC
TRC
7/29/2011
1
Activity coefficient
Chromatography
5
Liquid
Direct value, X
Pure compound
1
Data file compiler
Propagation of evaluated standard uncertainties
95
Liquid
1
Pressure, kPa
Liquid
101
3
2
Mole fraction
5
Liquid
0
1
1
Temperature, K
Liquid
1
303.15
5
1
0.7
2
1
0.09
1
303.15
5
1
0.69
2
1
0.09
1
313.15
5
1
0.72
2
1
0.09
1
313.15
5
1
0.72
2
1
0.09
1
323.15
5
1
0.75
2
1
0.09
1
323.15
5
1
0.75
2
1
0.09
11
6
1
15
1
Principal objective of the work
GPC
TRC
7/29/2011
1
Activity coefficient
Chromatography
6
Liquid
Direct value, X
Pure compound
1
Data file compiler
Propagation of evaluated standard uncertainties
95
Liquid
1
Pressure, kPa
Liquid
101
3
2
Mole fraction
6
Liquid
0
1
1
Temperature, K
Liquid
1
303.15
5
1
0.88
2
1
0.11
1
303.15
5
1
0.84
2
1
0.1
1
313.15
5
1
0.92
2
1
0.11
1
313.15
5
1
0.9
2
1
0.11
1
323.15
5
1
0.94
2
1
0.11
1
323.15
5
1
0.94
2
1
0.11
12
7
1
15
1
Principal objective of the work
GPC
TRC
7/29/2011
1
Activity coefficient
Chromatography
7
Liquid
Direct value, X
Pure compound
1
Data file compiler
Propagation of evaluated standard uncertainties
95
Liquid
1
Pressure, kPa
Liquid
101
3
2
Mole fraction
7
Liquid
0
1
1
Temperature, K
Liquid
1
303.15
5
1
1.1
3
1
0.13
1
303.15
5
1
1.08
3
1
0.13
1
313.15
5
1
1.07
3
1
0.13
1
313.15
5
1
1.05
3
1
0.13
1
323.15
5
1
1.04
3
1
0.13
1
323.15
5
1
1
3
1
0.12
13
8
1
15
1
Principal objective of the work
GPC
TRC
7/29/2011
1
Activity coefficient
Chromatography
8
Liquid
Direct value, X
Pure compound
1
Data file compiler
Propagation of evaluated standard uncertainties
95
Liquid
1
Pressure, kPa
Liquid
101
3
2
Mole fraction
8
Liquid
0
1
1
Temperature, K
Liquid
1
303.15
5
1
1.34
3
1
0.16
1
303.15
5
1
1.32
3
1
0.16
1
313.15
5
1
1.28
3
1
0.16
1
313.15
5
1
1.26
3
1
0.15
1
323.15
5
1
1.23
3
1
0.15
1
323.15
5
1
1.19
3
1
0.15
14
9
1
15
1
Principal objective of the work
GPC
TRC
7/29/2011
1
Activity coefficient
Chromatography
9
Liquid
Direct value, X
Pure compound
1
Data file compiler
Propagation of evaluated standard uncertainties
95
Liquid
1
Pressure, kPa
Liquid
101
3
2
Mole fraction
9
Liquid
0
1
1
Temperature, K
Liquid
1
303.15
5
1
1.42
3
1
0.17
1
303.15
5
1
1.4
3
1
0.17
1
313.15
5
1
1.36
3
1
0.17
1
313.15
5
1
1.32
3
1
0.16
1
323.15
5
1
1.31
3
1
0.16
1
323.15
5
1
1.25
3
1
0.15
15
10
1
15
1
Principal objective of the work
GPC
TRC
7/29/2011
1
Activity coefficient
Chromatography
10
Liquid
Direct value, X
Pure compound
1
Data file compiler
Propagation of evaluated standard uncertainties
95
Liquid
1
Pressure, kPa
Liquid
101
3
2
Mole fraction
10
Liquid
0
1
1
Temperature, K
Liquid
1
303.15
5
1
1.57
3
1
0.19
1
303.15
5
1
1.57
3
1
0.19
1
313.15
5
1
1.5
3
1
0.18
1
313.15
5
1
1.45
3
1
0.18
1
323.15
5
1
1.44
3
1
0.18
1
323.15
5
1
1.37
3
1
0.17
16
11
1
15
1
Principal objective of the work
GPC
TRC
7/29/2011
1
Activity coefficient
Chromatography
11
Liquid
Direct value, X
Pure compound
1
Data file compiler
Propagation of evaluated standard uncertainties
95
Liquid
1
Pressure, kPa
Liquid
101
3
2
Mole fraction
11
Liquid
0
1
1
Temperature, K
Liquid
1
303.15
5
1
0.51
2
1
0.07
1
303.15
5
1
0.48
2
1
0.06
1
313.15
5
1
0.5
2
1
0.06
1
313.15
5
1
0.48
2
1
0.06
1
323.15
5
1
0.5
2
1
0.06
1
323.15
5
1
0.47
2
1
0.06
17
12
1
15
1
Principal objective of the work
GPC
TRC
7/29/2011
1
Activity coefficient
Chromatography
12
Liquid
Direct value, X
Pure compound
1
Data file compiler
Propagation of evaluated standard uncertainties
95
Liquid
1
Pressure, kPa
Liquid
101
3
2
Mole fraction
12
Liquid
0
1
1
Temperature, K
Liquid
1
303.15
5
1
0.62
2
1
0.08
1
303.15
5
1
0.59
2
1
0.07
1
313.15
5
1
0.62
2
1
0.08
1
313.15
5
1
0.59
2
1
0.07
1
323.15
5
1
0.62
2
1
0.08
1
323.15
5
1
0.58
2
1
0.07
18
13
1
15
1
Principal objective of the work
GPC
TRC
7/29/2011
1
Activity coefficient
Chromatography
13
Liquid
Direct value, X
Pure compound
1
Data file compiler
Propagation of evaluated standard uncertainties
95
Liquid
1
Pressure, kPa
Liquid
101
3
2
Mole fraction
13
Liquid
0
1
1
Temperature, K
Liquid
1
303.15
5
1
0.69
2
1
0.09
1
303.15
5
1
0.65
2
1
0.08
1
313.15
5
1
0.66
2
1
0.08
1
313.15
5
1
0.63
2
1
0.08
1
323.15
5
1
0.64
2
1
0.08
1
323.15
5
1
0.61
2
1
0.08
19
14
1
15
1
Principal objective of the work
GPC
TRC
7/29/2011
1
Activity coefficient
Chromatography
14
Liquid
Direct value, X
Pure compound
1
Data file compiler
Propagation of evaluated standard uncertainties
95
Liquid
1
Pressure, kPa
Liquid
101
3
2
Mole fraction
14
Liquid
0
1
1
Temperature, K
Liquid
1
303.15
5
1
0.66
2
1
0.08
1
303.15
5
1
0.62
2
1
0.08
1
313.15
5
1
0.64
2
1
0.08
1
313.15
5
1
0.61
2
1
0.08
1
323.15
5
1
0.62
2
1
0.08
1
323.15
5
1
0.59
2
1
0.07