ABSTRACT

In this work, the thermal properties including molar heat capacity, thermal conductivity, and thermal diffusivity of aqueous sulfolane solutions were measured at temperatures ranging from (303.15 to 353.15) K and atmospheric pressure. The measurements were carried out for the entire range of mole fractions of sulfolane in water. Molar excess heat capacities as well as excess thermal conductivities and excess thermal diffusivities were calculated from the experimental values and correlated as a function of mole fraction and temperature using the Redlich-Kister equation. Employing the heat capacity, thermal conductivity and thermal diffusivity of pure water as the solvent, the corresponding experimental values obtained for the investigated solutions were also correlated with temperature and concentration by a modified Setchenow equation. Results show comparable accuracy of both models in correlating all three experimental thermal properties.

Compounds

#	Formula	Name
1	C4H8O2S	sulfolane
2	H2O	water

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	Molar heat capacity at constant pressure, J/K/mol ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Small sample (50 mg) DSC	6
POMD	1	Thermal conductivity, W/m/K ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Hot wire method	6
POMD	2	Molar heat capacity at constant pressure, J/K/mol ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Small sample (50 mg) DSC	6
POMD	2	Thermal conductivity, W/m/K ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Hot wire method	6
POMD	1 2	Molar heat capacity at constant pressure, J/K/mol ; Liquid	Temperature, K; Liquid Mole fraction - 1; Liquid	Pressure, kPa; Liquid	Liquid	Small sample (50 mg) DSC	66
POMD	1 2	Thermal conductivity, W/m/K ; Liquid	Temperature, K; Liquid Mole fraction - 1; Liquid	Pressure, kPa; Liquid	Liquid	Hot wire method	66

Thermodynamics Research Center / ThermoML | Thermochimica Acta

Heat Capacity, Thermal Conductivity and Thermal Diffusivity of Aqueous Sulfolane Solutions

Shokouhi, M.[Mohammad], Jalili, A. H.[Amir Hossein], Mohammadian, A. H.[Amir Hossein], Hosseini-Jenab, M.[Masih], Nouri, S. S.[Sasan Sadraei]

ABSTRACT