Thermodynamics Research Center / ThermoML | Journal of Chemical Thermodynamics

Activity coefficients at infinite dilution of organic solutes in the ionic liquid trihexyl(tetradecyl)phosphonium tetrafluoroborate using gas liquid chromatography at T = (313.15, 333.15, 353.15, and 373.15) K

Tumba, K.[Kaniki], Reddy, P.[Prashant], Naidoo, P.[Paramespri], Ramjugernath, D.[Deresh]
J. Chem. Thermodyn. 2011, 43, 5, 670-676
ABSTRACT
Activity coefficients at infinite dilution have been measured by gas-liquid chromatography for 27 organic solutes (n-alkanes, 1-alkenes, 1-alkynes, cycloalkanes, aromatics, alcohols, and ketones) in the ionic liquid trihexyl(tetradecyl)phosphonium tetrafluoroborate [3C6C14P][BF4]. The measurements were carried out at four different temperatures viz. T = (313.15, 333.15, 353.15, and 373.15) K. From the experimental data, partial molar excess enthalpy values at infinite dilution were calculated for the experimental temperature range. The selectivity values for the separation of n-hexane/benzene, cyclohexane/ benzene, and methanol/benzene mixtures were determined from the experimental infinite dilution activity coefficient values. These values were compared to those available in the literature for other ionic liquids and commercial solvents, so as to assess the feasibility of employing [3C6C14P][BF4] in solvent-enhanced industrial separations.
Compounds
# Formula Name
1 C32H68BF4P trihexyl(tetradecyl)-phosphonium tetrafluoroborate
2 C5H12 pentane
3 C6H14 hexane
4 C7H16 heptane
5 C8H18 octane
6 C9H20 nonane
7 C10H22 decane
8 C5H10 1-pentene
9 C6H12 hex-1-ene
10 C7H14 1-heptene
11 C8H16 oct-1-ene
12 C9H18 1-nonene
13 C5H8 1-pentyne
14 C6H10 1-hexyne
15 C7H12 1-heptyne
16 C8H14 1-octyne
17 C9H16 1-nonyne
18 C5H10 cyclopentane
19 C6H12 cyclohexane
20 C7H14 cycloheptane
21 C8H16 cyclooctane
22 CH4O methanol
23 C2H6O ethanol
24 C6H6 benzene
25 C7H8 toluene
26 C8H10 ethylbenzene
27 C3H6O acetone
28 C4H8O butanone
Datasets
The table above is generated from the ThermoML associated json file (link above). POMD and RXND refer to PureOrMixture and Reaction Datasets. The compound numbers are included in properties, variables, and phases, if specificied; the numbers refer to the table of compounds on the left.
Type Compound-# Property Variable Constraint Phase Method #Points
  • POMD
  • 1
  • Mass density, kg/m3 ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Vibrating tube method
  • 1
  • POMD
  • 11
  • 1
  • Activity coefficient - 11 ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Mole fraction - 11; Liquid
  • Liquid
  • Chromatography
  • 8
  • POMD
  • 12
  • 1
  • Activity coefficient - 12 ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Mole fraction - 12; Liquid
  • Liquid
  • Chromatography
  • 8
  • POMD
  • 13
  • 1
  • Activity coefficient - 13 ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Mole fraction - 13; Liquid
  • Liquid
  • Chromatography
  • 8
  • POMD
  • 14
  • 1
  • Activity coefficient - 14 ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Mole fraction - 14; Liquid
  • Liquid
  • Chromatography
  • 8
  • POMD
  • 15
  • 1
  • Activity coefficient - 15 ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Mole fraction - 15; Liquid
  • Liquid
  • Chromatography
  • 8
  • POMD
  • 16
  • 1
  • Activity coefficient - 16 ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Mole fraction - 16; Liquid
  • Liquid
  • Chromatography
  • 8
  • POMD
  • 17
  • 1
  • Activity coefficient - 17 ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Mole fraction - 17; Liquid
  • Liquid
  • Chromatography
  • 8
  • POMD
  • 18
  • 1
  • Activity coefficient - 18 ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Mole fraction - 18; Liquid
  • Liquid
  • Chromatography
  • 8
  • POMD
  • 19
  • 1
  • Activity coefficient - 19 ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Mole fraction - 19; Liquid
  • Liquid
  • Chromatography
  • 8
  • POMD
  • 20
  • 1
  • Activity coefficient - 20 ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Mole fraction - 20; Liquid
  • Liquid
  • Chromatography
  • 8
  • POMD
  • 21
  • 1
  • Activity coefficient - 21 ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Mole fraction - 21; Liquid
  • Liquid
  • Chromatography
  • 8
  • POMD
  • 22
  • 1
  • Activity coefficient - 22 ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Mole fraction - 22; Liquid
  • Liquid
  • Chromatography
  • 8
  • POMD
  • 23
  • 1
  • Activity coefficient - 23 ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Mole fraction - 23; Liquid
  • Liquid
  • Chromatography
  • 8
  • POMD
  • 24
  • 1
  • Activity coefficient - 24 ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Mole fraction - 24; Liquid
  • Liquid
  • Chromatography
  • 8
  • POMD
  • 25
  • 1
  • Activity coefficient - 25 ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Mole fraction - 25; Liquid
  • Liquid
  • Chromatography
  • 8
  • POMD
  • 26
  • 1
  • Activity coefficient - 26 ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Mole fraction - 26; Liquid
  • Liquid
  • Chromatography
  • 8
  • POMD
  • 27
  • 1
  • Activity coefficient - 27 ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Mole fraction - 27; Liquid
  • Liquid
  • Chromatography
  • 8
  • POMD
  • 28
  • 1
  • Activity coefficient - 28 ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Mole fraction - 28; Liquid
  • Liquid
  • Chromatography
  • 8
  • POMD
  • 2
  • 1
  • Activity coefficient - 2 ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Mole fraction - 2; Liquid
  • Liquid
  • Chromatography
  • 8
  • POMD
  • 3
  • 1
  • Activity coefficient - 3 ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Mole fraction - 3; Liquid
  • Liquid
  • Chromatography
  • 8
  • POMD
  • 4
  • 1
  • Activity coefficient - 4 ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Mole fraction - 4; Liquid
  • Liquid
  • Chromatography
  • 8
  • POMD
  • 5
  • 1
  • Activity coefficient - 5 ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Mole fraction - 5; Liquid
  • Liquid
  • Chromatography
  • 8
  • POMD
  • 6
  • 1
  • Activity coefficient - 6 ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Mole fraction - 6; Liquid
  • Liquid
  • Chromatography
  • 8
  • POMD
  • 8
  • 1
  • Activity coefficient - 8 ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Mole fraction - 8; Liquid
  • Liquid
  • Chromatography
  • 8
  • POMD
  • 9
  • 1
  • Activity coefficient - 9 ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Mole fraction - 9; Liquid
  • Liquid
  • Chromatography
  • 8
  • POMD
  • 10
  • 1
  • Activity coefficient - 10 ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Mole fraction - 10; Liquid
  • Liquid
  • Chromatography
  • 8
  • POMD
  • 7
  • 1
  • Activity coefficient - 7 ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Mole fraction - 7; Liquid
  • Liquid
  • Chromatography
  • 8