ABSTRACT

Effective extraction of sulfur aromatic containing compounds from fuels by use of ionic liquids needs the knowledge and precise measurements of thermodynamic properties. In this work, effect of two types of the ionic liquids, 1-hexyl-3-methylimidazolium bromide [HMIM]Br, and 1-ethyl-3-methylimidazolium ethyl sulfate [EMIM]EtSO4 on the thermodynamic properties of thiophene in hexane or cyclohexane solutions have been investigated. In this way, the densities, speeds of sound, and refractive indices of the solutions being studied have been measured at T = 298.15 K. These data have been used to calculate standard partial molar volumes V0 /, transfer partial molar volumes DtrV0 /, partial molar isentropic compressibility j0 u, and molar refractions RD. The calculated parameters were used to discuss the manner of ionic liquid thiophene interactions. Also, the scaled particle theory (SPT) was used to confirm and deep insight of results obtained from the calculated volumetric properties in terms of interaction volume Vint, and cavity volume Vcav .

Compounds

#	Formula	Name
1	C10H19BrN2	3-hexyl-1-methyl-1H-imidazolium bromide
2	C8H16N2O4S	1-ethyl-3-methylimidazolium ethyl sulfate
3	C4H4S	thiophene
4	C6H12	cyclohexane
5	C6H14	hexane

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	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Vibrating tube method	1
POMD	1	Refractive index (Na D-line) ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Standard Abbe refractometry	1
POMD	1	Speed of sound, m/s ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Sing-around technique in a fixed-path interferometer	1
POMD	2	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Vibrating tube method	1
POMD	2	Refractive index (Na D-line) ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Standard Abbe refractometry	1
POMD	2	Speed of sound, m/s ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Sing-around technique in a fixed-path interferometer	1
POMD	3	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Vibrating tube method	1
POMD	3	Refractive index (Na D-line) ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Standard Abbe refractometry	1
POMD	3	Speed of sound, m/s ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Sing-around technique in a fixed-path interferometer	2
POMD	4	Mass density, kg/m3 ; Liquid	Pressure, kPa; Liquid Temperature, K; Liquid		Liquid	Vibrating tube method	1
POMD	4	Speed of sound, m/s ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Sing-around technique in a fixed-path interferometer	1
POMD	4	Refractive index (Na D-line) ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Standard Abbe refractometry	1
POMD	5	Refractive index (Na D-line) ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Standard Abbe refractometry	1
POMD	5	Mass density, kg/m3 ; Liquid	Pressure, kPa; Liquid Temperature, K; Liquid		Liquid	Vibrating tube method	1
POMD	5	Speed of sound, m/s ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Sing-around technique in a fixed-path interferometer	1
POMD	3 4	Mass density, kg/m3 ; Liquid	Molality, mol/kg - 3; Liquid	Pressure, kPa; Liquid Temperature, K; Liquid	Liquid	Vibrating tube method	16
POMD	3 4	Speed of sound, m/s ; Liquid	Molality, mol/kg - 3; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid	Liquid	Sing-around technique in a fixed-path interferometer	16
POMD	3 4	Refractive index (Na D-line) ; Liquid	Molality, mol/kg - 3; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid	Liquid	Standard Abbe refractometry	16
POMD	3 4 2	Mass density, kg/m3 ; Liquid	Molality, mol/kg - 3; Liquid	Pressure, kPa; Liquid Temperature, K; Liquid Solvent: Molality, mol/kg - 2; Liquid	Liquid	Vibrating tube method	15
POMD	3 4 2	Speed of sound, m/s ; Liquid	Molality, mol/kg - 3; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid Solvent: Molality, mol/kg - 2; Liquid	Liquid	Sing-around technique in a fixed-path interferometer	15
POMD	3 4 2	Refractive index (Na D-line) ; Liquid	Molality, mol/kg - 3; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid Solvent: Molality, mol/kg - 2; Liquid	Liquid	Standard Abbe refractometry	15
POMD	3 4 1	Mass density, kg/m3 ; Liquid	Molality, mol/kg - 3; Liquid	Pressure, kPa; Liquid Temperature, K; Liquid Solvent: Molality, mol/kg - 1; Liquid	Liquid	Vibrating tube method	13
POMD	3 4 1	Speed of sound, m/s ; Liquid	Molality, mol/kg - 3; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid Solvent: Molality, mol/kg - 1; Liquid	Liquid	Sing-around technique in a fixed-path interferometer	13
POMD	3 4 1	Refractive index (Na D-line) ; Liquid	Molality, mol/kg - 3; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid Solvent: Molality, mol/kg - 1; Liquid	Liquid	Standard Abbe refractometry	13
POMD	3 5	Mass density, kg/m3 ; Liquid	Molality, mol/kg - 3; Liquid	Pressure, kPa; Liquid Temperature, K; Liquid	Liquid	Vibrating tube method	18
POMD	3 5	Speed of sound, m/s ; Liquid	Molality, mol/kg - 3; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid	Liquid	Sing-around technique in a fixed-path interferometer	18
POMD	3 5	Refractive index (Na D-line) ; Liquid	Molality, mol/kg - 3; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid	Liquid	Standard Abbe refractometry	18
POMD	3 5 1	Mass density, kg/m3 ; Liquid	Molality, mol/kg - 3; Liquid	Pressure, kPa; Liquid Temperature, K; Liquid Solvent: Molality, mol/kg - 1; Liquid	Liquid	Vibrating tube method	12
POMD	3 5 1	Speed of sound, m/s ; Liquid	Molality, mol/kg - 3; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid Solvent: Molality, mol/kg - 1; Liquid	Liquid	Sing-around technique in a fixed-path interferometer	12
POMD	3 5 1	Refractive index (Na D-line) ; Liquid	Molality, mol/kg - 3; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid Solvent: Molality, mol/kg - 1; Liquid	Liquid	Standard Abbe refractometry	12
POMD	4 2	Mass density, kg/m3 ; Liquid	Pressure, kPa; Liquid Temperature, K; Liquid Molality, mol/kg - 2; Liquid		Liquid	Vibrating tube method	1
POMD	4 2	Speed of sound, m/s ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid Molality, mol/kg - 2; Liquid		Liquid	Sing-around technique in a fixed-path interferometer	1
POMD	4 2	Refractive index (Na D-line) ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid Molality, mol/kg - 2; Liquid		Liquid	Standard Abbe refractometry	1
POMD	4 1	Mass density, kg/m3 ; Liquid	Pressure, kPa; Liquid Temperature, K; Liquid Molality, mol/kg - 1; Liquid		Liquid	Vibrating tube method	1
POMD	4 1	Speed of sound, m/s ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid Molality, mol/kg - 1; Liquid		Liquid	Sing-around technique in a fixed-path interferometer	1
POMD	4 1	Refractive index (Na D-line) ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid Molality, mol/kg - 1; Liquid		Liquid	Standard Abbe refractometry	1
POMD	5 1	Mass density, kg/m3 ; Liquid	Pressure, kPa; Liquid Temperature, K; Liquid Molality, mol/kg - 1; Liquid		Liquid	Vibrating tube method	1
POMD	5 1	Speed of sound, m/s ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid Molality, mol/kg - 1; Liquid		Liquid	Sing-around technique in a fixed-path interferometer	1
POMD	5 1	Refractive index (Na D-line) ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid Molality, mol/kg - 1; Liquid		Liquid	Standard Abbe refractometry	1

Thermodynamics Research Center / ThermoML | Journal of Chemical Thermodynamics

Volumetric, acoustic, and refractometric properties of (thiophene + hexane/cyclohexane) solutions in the presence of some imidazolium based ionic liquids at T = 298.15 K

Shekaari, H.[Hemayat], Zafarani-Moattar, M. T.[Mohammad Taghi], Behrooz, N. J.[Nasrin Jabbarvand]

ABSTRACT