ABSTRACT

The solubility of hydrogen sulfide in three ionic liquids, 1-butyl-3-methylimidazolium hexafluorophosphate ([bmim][PF6]), 1-butyl-3-methylimidazolium tetrafluoroborate ([bmim][BF4]), and 1-butyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide ([bmim][Tf2N]), at temperatures ranging from (303.15 to 343.15) K and pressures up to 1 MPa was determined. The solubility data were correlated using the Krichevsky- Kasarnovsky equation, and Henry s law constants at different temperatures were obtained. From the solubility data, the partial molar thermodynamic functions of solution such as Gibbs energy, enthalpy, and entropy were calculated. Comparison showed that the solubility of H2S in these three ionic liquids was in sequence: [bmim][Tf2N] greater than [bmim][BF4] greater than [bmim][PF6].

Compounds

#	Formula	Name
1	C8H15F6N2P	1-butyl-3-methylimidazolium hexafluorophosphate
2	C8H15BF4N2	1-butyl-3-methylimidazolium tetrafluoroborate
3	C10H15F6N3O4S2	1-butyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide
4	H2S	hydrogen sulfide

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	Phase	Method	#Points
POMD	4 1	Mole fraction - 4 ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid	Liquid Gas	Volume Change on Dissolution	42
POMD	4 2	Mole fraction - 4 ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid	Liquid Gas	Volume Change on Dissolution	42
POMD	4 3	Mole fraction - 4 ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid	Liquid Gas	Volume Change on Dissolution	44

Thermodynamics Research Center / ThermoML | Journal of Chemical and Engineering Data

Solubility of H2S in Ionic Liquids [bmim][PF6], [bmim][BF4], and [bmim][Tf2N]

Jalili, A. H.[Amir Hossein], Rahmati-Rostami, M.[Mahboubeh], Ghotbi, C.[Cyrus], Hosseini-Jenab, M.[Masih], Ahmadi, A. N.[Amir Naser]

ABSTRACT