ABSTRACT

Two SO3H-functionalized ionic liquids (ILs), N-isobutyl-3-sulfopropan-1-aminium hydrogen sulfate [IBAC3S]HSO4 and N-isobutyl-4-sulfobutan-1-aminium hydrogen sulfate [IBAC4S]HSO4, were synthesized and characterized by NMR and HR-MS. The thermal properties and acidities were analyzed. Density, dynamic viscosity, surface tension, conductivity, and refractive index of the IL were studied as a function of temperature. The physicochemical properties, namely molecular volume, isobaric coefficients of thermal expansion, standard entropy, critical temperature, molar free volume, interstice volume, etc. of the IL were estimated according to the reported empirical and thermodynamic equations. On the basis of the Walden rule, the ionicty of the two SO3H-functionalized ionic liquids was assessed by the product of molar conductivity and viscosity.

Compounds

#	Formula	Name
1	C7H19NO7S2	N-isobutyl-3-sulfopropan-1-aminium hydrogen sulfate
2	C8H21NO7S2	N-isobutyl-4-sulfobutan-1-aminium hydrogen sulfate

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	8
POMD	1	Viscosity, Pa*s ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	CONCYL:UFactor:3	14
POMD	1	Surface tension liquid-gas, N/m ; Liquid	Temperature, K; Liquid		Liquid Air at 1 atmosphere	plate method	7
POMD	1	Refractive index (Na D-line) ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Standard Abbe refractometry	9
POMD	1	Electrical conductivity, S/m ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Alternating current cell with electrodes	12
POMD	2	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	8
POMD	2	Viscosity, Pa*s ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	CONCYL:UFactor:3	16
POMD	2	Surface tension liquid-gas, N/m ; Liquid	Temperature, K; Liquid		Liquid Air at 1 atmosphere	plate method	7
POMD	2	Refractive index (Na D-line) ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Standard Abbe refractometry	9
POMD	2	Electrical conductivity, S/m ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Alternating current cell with electrodes	12

Thermodynamics Research Center / ThermoML | Journal of Chemical and Engineering Data

Synthesis and physicochemical properties of two SO3Hfunctionalized ionic liquids with hydrogen sulfate anion

Meng, Y.[Yali], Liu, J.[Jiamei], Li, Z.[Zhen], Wei, H.[Huanmei]

ABSTRACT