Name: ThermoML Representation of Published Experimental Data from Fluid Phase Equilibria (0378-3812, Elsevier)
Creator: Thermodynamics Research Center
License: https://www.nist.gov/open/license

Thermodynamics Research Center / ThermoML | Fluid Phase Equilibria

Vapor liquid equilibrium for binary system of tetrahydrothiophene + 2,2,4-trimethylpentane and tetrahydrothiophene + 2,4,4-trimethyl-1-pentene at 358.15 and 368.15 K

Sapei, E.[Erlin], Uusi-Kyyny, P.[Petri], Keskinen, K. I.[Kari I.], Pokki, J. -P.[Juha-Pekka], Alopaeus, V.[Ville]

Fluid Phase Equilib. 2010, 296, 2, 159-163

ABSTRACT

Isothermal vapor-liquid equilibrium (VLE) for tetrahydrothiophene + 2,2,4-trimethylpentane and tetrahydrothiophene + 2,4,4-trimethyl-1-pentene at 358.15 and 368.15 K were measured with a circulation still. All systems studied exhibit positive deviation from Raoult's law. No azeotropic behavior was found in all systems at the measured temperatures. The experimental results were correlated with the Wilson model and compared to COSMO-SAC predictive model. Analyses of liquid and vapor phase composition were determined with gas chromatography. All VLE measurements passed the three thermodynamic consistency tests used. The activity coefficients at infinite dilution are also presented.

Compounds

#	Formula	Name
1	C4H8S	tetrahydrothiophene
2	C8H18	2,2,4-trimethylpentane
3	C8H16	2,4,4-trimethyl-1-pentene

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	1 2	Vapor or sublimation pressure, kPa ; Gas	Temperature, K; Gas Mole fraction - 1; Liquid	Gas Liquid	Ebulliometric method (Recirculating still)	30
POMD	1 2	Mole fraction - 1 ; Gas	Temperature, K; Gas Mole fraction - 2; Liquid	Gas Liquid	Chromatography	30
POMD	3 1	Vapor or sublimation pressure, kPa ; Gas	Temperature, K; Gas Mole fraction - 1; Liquid	Gas Liquid	Ebulliometric method (Recirculating still)	26
POMD	3 1	Mole fraction - 1 ; Gas	Temperature, K; Gas Mole fraction - 1; Liquid	Gas Liquid	Chromatography	26