ABSTRACT

Activity coefficients at infinite dilution were determined for 27 solutes: n-alkanes, alk-1-enes, alk-1-ynes, cycloalkanes, alkylbenzenes, alcohols, and ketones in the ionic liquid 1-butyl-3-methylimidazolium hexafluoroantimonate, [BMIM][SbF6], by gas liquid chromatography at three different temperatures, T = (313.15, 323.15, and 333.15) K. The results are compared to published data on related compounds. The partial molar excess enthalpy values at infinite dilution were calculated from the experimental data over the same temperature range. Selectivities and capacities at infinite dilution were calculated for the hexane/benzene and methanol/benzene systems from experimental infinite dilution activity coefficients and compared to the literature values for related ionic liquids, as well as to data on industrial molecular solvents.

Compounds

#	Formula	Name
1	C5H12	pentane
2	C6H14	hexane
3	C7H16	heptane
4	C8H18	octane
5	C9H20	nonane
6	C5H10	1-pentene
7	C6H12	hex-1-ene
8	C7H14	1-heptene
9	C8H16	oct-1-ene
10	C9H18	1-nonene
11	C5H8	1-pentyne
12	C6H10	1-hexyne
13	C7H12	1-heptyne
14	C8H14	1-octyne
15	C9H16	1-nonyne
16	C5H10	cyclopentane
17	C6H12	cyclohexane
18	C7H14	cycloheptane
19	C8H16	cyclooctane
20	CH4O	methanol
21	C2H6O	ethanol
22	C3H8O	propan-1-ol
23	C6H6	benzene
24	C7H8	toluene
25	C8H10	ethylbenzene
26	C3H6O	acetone
27	C4H8O	butanone
28	C8H15F6N2Sb	1-butyl-3-methylimidazolium hexafluoroantimonate

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	28	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Pycnometric method	1
POMD	1 28	Activity coefficient - 1 ; Liquid	Temperature, K; Liquid	Mole fraction - 1; Liquid	Liquid Gas	Chromatography	6
POMD	2 28	Activity coefficient - 2 ; Liquid	Temperature, K; Liquid	Mole fraction - 2; Liquid	Liquid Gas	Chromatography	6
POMD	3 28	Activity coefficient - 3 ; Liquid	Temperature, K; Liquid	Mole fraction - 3; Liquid	Liquid Gas	Chromatography	6
POMD	4 28	Activity coefficient - 4 ; Liquid	Temperature, K; Liquid	Mole fraction - 4; Liquid	Liquid Gas	Chromatography	6
POMD	5 28	Activity coefficient - 5 ; Liquid	Temperature, K; Liquid	Mole fraction - 5; Liquid	Liquid Gas	Chromatography	6
POMD	6 28	Activity coefficient - 6 ; Liquid	Temperature, K; Liquid	Mole fraction - 6; Liquid	Liquid Gas	Chromatography	6
POMD	7 28	Activity coefficient - 7 ; Liquid	Temperature, K; Liquid	Mole fraction - 7; Liquid	Liquid Gas	Chromatography	6
POMD	8 28	Activity coefficient - 8 ; Liquid	Temperature, K; Liquid	Mole fraction - 8; Liquid	Liquid Gas	Chromatography	6
POMD	9 28	Activity coefficient - 9 ; Liquid	Temperature, K; Liquid	Mole fraction - 9; Liquid	Liquid Gas	Chromatography	6
POMD	10 28	Activity coefficient - 10 ; Liquid	Temperature, K; Liquid	Mole fraction - 10; Liquid	Liquid Gas	Chromatography	6
POMD	11 28	Activity coefficient - 11 ; Liquid	Temperature, K; Liquid	Mole fraction - 11; Liquid	Liquid Gas	Chromatography	6
POMD	12 28	Activity coefficient - 12 ; Liquid	Temperature, K; Liquid	Mole fraction - 12; Liquid	Liquid Gas	Chromatography	6
POMD	13 28	Activity coefficient - 13 ; Liquid	Temperature, K; Liquid	Mole fraction - 13; Liquid	Liquid Gas	Chromatography	6
POMD	14 28	Activity coefficient - 14 ; Liquid	Temperature, K; Liquid	Mole fraction - 14; Liquid	Liquid Gas	Chromatography	6
POMD	15 28	Activity coefficient - 15 ; Liquid	Temperature, K; Liquid	Mole fraction - 15; Liquid	Liquid Gas	Chromatography	6
POMD	16 28	Activity coefficient - 16 ; Liquid	Temperature, K; Liquid	Mole fraction - 16; Liquid	Liquid Gas	Chromatography	6
POMD	17 28	Activity coefficient - 17 ; Liquid	Temperature, K; Liquid	Mole fraction - 17; Liquid	Liquid Gas	Chromatography	6
POMD	18 28	Activity coefficient - 18 ; Liquid	Temperature, K; Liquid	Mole fraction - 18; Liquid	Liquid Gas	Chromatography	6
POMD	19 28	Activity coefficient - 19 ; Liquid	Temperature, K; Liquid	Mole fraction - 19; Liquid	Liquid Gas	Chromatography	6
POMD	20 28	Activity coefficient - 20 ; Liquid	Temperature, K; Liquid	Mole fraction - 20; Liquid	Liquid Gas	Chromatography	6
POMD	21 28	Activity coefficient - 21 ; Liquid	Temperature, K; Liquid	Mole fraction - 21; Liquid	Liquid Gas	Chromatography	6
POMD	22 28	Activity coefficient - 22 ; Liquid	Temperature, K; Liquid	Mole fraction - 22; Liquid	Liquid Gas	Chromatography	6
POMD	23 28	Activity coefficient - 23 ; Liquid	Temperature, K; Liquid	Mole fraction - 23; Liquid	Liquid Gas	Chromatography	6
POMD	24 28	Activity coefficient - 24 ; Liquid	Temperature, K; Liquid	Mole fraction - 24; Liquid	Liquid Gas	Chromatography	6
POMD	25 28	Activity coefficient - 25 ; Liquid	Temperature, K; Liquid	Mole fraction - 25; Liquid	Liquid Gas	Chromatography	6
POMD	26 28	Activity coefficient - 26 ; Liquid	Temperature, K; Liquid	Mole fraction - 26; Liquid	Liquid Gas	Chromatography	6
POMD	27 28	Activity coefficient - 27 ; Liquid	Temperature, K; Liquid	Mole fraction - 27; Liquid	Liquid Gas	Chromatography	6

Thermodynamics Research Center / ThermoML | Journal of Chemical Thermodynamics

Activity coefficients at infinite dilution of organic solutes in the ionic liquid 1-butyl-3-methylimidazolium hexafluoroantimonate using gas liquid chromatography at T = (313.15, 323.15, and 333.15) K

Olivier, E.[Eugene], Letcher, T. M.[Trevor M.], Naidoo, P.[Paramespri], Ramjugernath, D.[Deresh]

ABSTRACT