ABSTRACT

The vapour pressure of binary mixtures of hydrogen sulphide with ethane, propane, and n-butane was measured at T = 182.33K covering most of the composition range. The excess Gibbs free energy of these mixtures has been derived from the measurements made. For the equimolar mixtures GE m ox1 1/4 0:5P 1/4 o835:5 _ 5:8P J _ mol_1 for (H2S + C2H6), (820.1 +- 2.4) J Ae mol_1 for (H2S + C3H8), and (818.6 +- 0.9) J Ae mol_1 for (H2S + n-C4H10). The binary mixtures of H2S with ethane and with propane exhibit azeotropes, but that with n-butane does not.

Compounds

#	Formula	Name
1	H2S	hydrogen sulfide
2	C2H6	ethane
3	C3H8	propane
4	C4H10	butane
5	N2O	nitrous oxide

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	Vapor or sublimation pressure, kPa ; Crystal			Crystal Liquid Gas	triple-point cell with a manometer	1
POMD	2	Vapor or sublimation pressure, kPa ; Liquid	Temperature, K; Liquid		Liquid Gas	Closed cell (Static) method	1
POMD	3	Vapor or sublimation pressure, kPa ; Liquid	Temperature, K; Liquid		Liquid Gas	Closed cell (Static) method	1
POMD	4	Vapor or sublimation pressure, kPa ; Liquid	Temperature, K; Liquid		Liquid Gas	Closed cell (Static) method	1
POMD	5	Vapor or sublimation pressure, kPa ; Crystal			Crystal Liquid Gas	triple-point cell with manometer	1
POMD	2 1	Vapor or sublimation pressure, kPa ; Liquid	Mole fraction - 1; Liquid	Temperature, K; Liquid	Liquid Gas	Closed cell (Static) method	7
POMD	3 1	Vapor or sublimation pressure, kPa ; Liquid	Mole fraction - 1; Liquid	Temperature, K; Liquid	Liquid Gas	Closed cell (Static) method	7
POMD	4 1	Vapor or sublimation pressure, kPa ; Liquid	Mole fraction - 1; Liquid	Temperature, K; Liquid	Liquid Gas	Closed cell (Static) method	7

Thermodynamics Research Center / ThermoML | Journal of Chemical Thermodynamics

Vapour pressure and excess Gibbs free energy of binary mixtures of hydrogen sulphide with ethane, propane, and n-butane at temperature of 182.33 K

Lobo, L. Q.[Lelio Q.], Ferreira, A. G. M., Fonseca, I. M. A.[Isabel M. A.], Senra, A. M. P.

ABSTRACT