ABSTRACT

The solubility of hydrogen sulfide and carbon dioxide in dimethyl sulfoxide and dimethyl formamide were experimentally measured. Gas concentrations were systematically measured by isochoric saturation method at temperatures from (303.15 to 353.15) K and pressure from vapor pressure of solvent up to about 2.0 MPa. Results show that H2S dissolves more than CO2 in both solvents, and that chemical dissolution has significant role in H2S solubility in dimethyl sulfoxide. The experimental data were correlated by using: (1) a model comprised of the extended Henry s law and Pitzer's virial expansion for the excess Gibbs energy, and (2) a generic Redlich-Kwong (RK) cubic equation of state.

Compounds

#	Formula	Name
1	H2S	hydrogen sulfide
2	CO2	carbon dioxide
3	C3H7NO	dimethylformamide
4	C2H6OS	dimethyl sulfoxide

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	3 2	Vapor or sublimation pressure, kPa ; Liquid	Temperature, K; Liquid Mole fraction - 2; Liquid	Liquid Gas	Closed cell (Static) method	20
POMD	4 2	Vapor or sublimation pressure, kPa ; Liquid	Temperature, K; Liquid Mole fraction - 2; Liquid	Liquid Gas	Closed cell (Static) method	17
POMD	4 1	Vapor or sublimation pressure, kPa ; Liquid	Temperature, K; Liquid Mole fraction - 1; Liquid	Liquid Gas	Closed cell (Static) method	41
POMD	3 1	Vapor or sublimation pressure, kPa ; Liquid	Temperature, K; Liquid Mole fraction - 1; Liquid	Liquid Gas	Closed cell (Static) method	62

Thermodynamics Research Center / ThermoML | Fluid Phase Equilibria

Experimental solubility of hydrogen sulfide and carbon dioxide in dimethylformamide and dimethylsulfoxide

Shokouhi, M.[Mohammad], Farahani, H.[Hadi], Hosseini-Jenab, M.[Masih]

ABSTRACT