ABSTRACT

The activity coefficient at infinite dilution, c1 has been determined for 26 solutes (alkanes, alcohols, amines, aromatics, chloroalkanes, ketones, ethers) in a newly developed dicationic ionic liquid 1,9- di(N-naphthalen-2-ylmethylpyrrolidinium)nonanebis[(trifluoromethyl)sulfonyl]imide ([C9(2MNPTpy)2] [(NTf2) 2 ]) by inverse gas chromatography at four different temperatures (T = 313, 323, 333 and 343 K). Solvation interactions between solvents and solute molecules have been estimated at T = (313, 343 and 373) K using Abraham solvation parameter. The experiments were carried out at various stationary phase loadings of (5 to 18)%. The selectivity values for cyclohexane/aromatics, octane/linear alcohols, octane/polar solutions were extracted from experimental activity coefficient data at T = 313 K. Compared with other ionic liquids from the literatures, this ionic liquid can be utilized as an efficient solvent for (aromatic + aliphatic) separation.

Compounds

#	Formula	Name
1	C6H14	hexane
2	C7H16	heptane
3	C8H18	octane
4	C6H12	cyclohexane
5	C6H6	benzene
6	C7H8	toluene
7	C8H10	1,2-dimethylbenzene
8	C8H10	1,3-dimethylbenzene
9	C8H10	1,4-dimethylbenzene
10	CH4O	methanol
11	C2H6O	ethanol
12	C3H8O	propan-1-ol
13	C3H8O	propan-2-ol
14	C4H8O	butanal
15	C7H6O	benzaldehyde
16	C5H10O	pentan-2-one
17	C5H8O	cyclopentanone
18	C6H10O	cyclohexanone
19	C6H15N	triethylamine
20	C5H5N	pyridine
21	CCl4	tetrachloromethane
22	C2H4Cl2	1,2-dichloroethane
23	C4H8O2	1,4-dioxane
24	C2H3N	acetonitrile
25	C4H8O2	ethyl acetate
26	C2H4O2	acetic acid
27	C43H52F12N4O8S4	1,1'-(nonane-1,9-diyl)bis(1-(naphthalen-2-ylmethyl)pyrrolidin-1-ium) bis((trifluoromethyl)sulfonyl)amide

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

Thermodynamics Research Center / ThermoML | Journal of Chemical Thermodynamics

Solvation parameter model and thermodynamic parameters in a dicationic ionic liquid based on pyrrolidinium

Heydar, K. T.[Kourosh Tabar], Rahnama, M. A.[Marzieh Afshin], Sharfi, A.[Ali], Mirzaei, M.[Mojtaba], Ahmadi, S. H.[Seyyed Hamid]

ABSTRACT