ABSTRACT

In this work we describe the synthesis and thermal properties of nine new salts derived from ammonium that incorporate alkanesulfonate and alkanesulfate anions. Their structures were confirmed by 1H and 13C NMR and HRMS-ESI. Their thermal properties were determined by differential scanning calorimetry (DSC). Three of the synthesized salts have been shown to be room temperature ionic liquids: N-ethyl-N- (2-hydroxyethyl)-N,N-dimethylammonium butanesulfonate, N-ethyl-N,N-dimethylbutylammonium ethylsulfate, and N-ethyl-N- (2-hydroxyethyl)-N,N-dimethylammonium ethylsulfate. Experimental densities, speeds of sound, dynamic viscosities, and refractive indices of these three ionic liquids were measured at T = 298.15 K.

Compounds

#	Formula	Name
1	C14H33NO4S	N-ethyl-2-hydroxy-N,N-dimethylethanaminium 1-octanesulfonate
2	C10H25NO4S	N-ethyl-N,N-dimethyl-N-butylammonium ethyl sulfate
3	C8H21NO5S	N-ethyl-N-(2-hydroxyethyl)-N,N-dimethylammonium ethyl sulfate
4	C8H21NO4S	N,N,N-trimethyl-N-butylammonium methyl sulfate
5	C11H27NO3S	N,N,N-trimethyl-1-butanaminium 1-butanesulfonate
6	C15H35NO3S	N,N,N-trimethyl-1-butanaminium 1-octanesulfonate
7	C6H17NO4S	choline methanesulfonate
8	C9H23NO4S	2-hydroxy-N,N,N-trimethyl-ethanaminium 1-butanesulfonate
9	C13H31NO4S	2-hydroxy-N,N,N-trimethylethanaminium 1-octanesulfonate
10	C7H19NO4S	N-ethyl-2-hydroxy-N,N-dimethylethanaminium methanesulfonate
11	C10H25NO4S	N-ethyl-2-hydroxy-N,N-dimethylethanaminium 1-butanesulfonate

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 enthalpy of transition or fusion, kJ/mol ; Crystal			Crystal Liquid Air at 1 atmosphere	DSC	1
POMD	1	Triple point temperature, K ; Crystal			Crystal Liquid Air at 1 atmosphere	DTA	1
POMD	1	Molar heat capacity at constant pressure, J/K/mol ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Small sample (50 mg) DSC	9
POMD	2	Molar enthalpy of transition or fusion, kJ/mol ; Crystal			Crystal Liquid Air at 1 atmosphere	DSC	1
POMD	2	Triple point temperature, K ; Crystal			Crystal Liquid Air at 1 atmosphere	DTA	1
POMD	2	Refractive index (Na D-line) ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Standard Abbe refractometry	1
POMD	2	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Vibrating tube method	1
POMD	2	Molar heat capacity at constant pressure, J/K/mol ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Small sample (50 mg) DSC	7
POMD	2	Viscosity, Pa*s ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Capillary tube (Ostwald; Ubbelohde) method	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	Refractive index (Na D-line) ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Standard Abbe refractometry	1
POMD	3	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Vibrating tube method	1
POMD	3	Molar heat capacity at constant pressure, J/K/mol ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Small sample (50 mg) DSC	16
POMD	3	Viscosity, Pa*s ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Capillary tube (Ostwald; Ubbelohde) method	1
POMD	3	Speed of sound, m/s ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Sing-around technique in a fixed-path interferometer	1
POMD	4	Triple point temperature, K ; Crystal			Crystal Liquid Air at 1 atmosphere	DTA	1
POMD	4	Triple point temperature, K ; Glass			Glass Liquid Air at 1 atmosphere	DTA	1
POMD	5	Molar enthalpy of transition or fusion, kJ/mol ; Crystal			Crystal Liquid Air at 1 atmosphere	DSC	1
POMD	5	Triple point temperature, K ; Crystal			Crystal Liquid Air at 1 atmosphere	DTA	1
POMD	5	Molar heat capacity at constant pressure, J/K/mol ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Small sample (50 mg) DSC	9
POMD	6	Molar enthalpy of transition or fusion, kJ/mol ; Crystal 3			Crystal 3 Crystal 2 Air at 1 atmosphere	DSC	1
POMD	6	Molar enthalpy of transition or fusion, kJ/mol ; Crystal 2			Crystal 2 Crystal 1 Air at 1 atmosphere	DSC	1
POMD	6	Triple point temperature, K ; Crystal 1			Crystal 1 Liquid Air at 1 atmosphere	DTA	1
POMD	6	Triple point temperature, K ; Crystal 3			Crystal 3 Crystal 2 Air at 1 atmosphere	DTA	1
POMD	6	Triple point temperature, K ; Crystal 2			Crystal 2 Crystal 1 Air at 1 atmosphere	DTA	1
POMD	7	Molar enthalpy of transition or fusion, kJ/mol ; Crystal 1			Crystal 1 Liquid Air at 1 atmosphere	DSC	1
POMD	7	Molar enthalpy of transition or fusion, kJ/mol ; Crystal 3			Crystal 3 Crystal 2 Air at 1 atmosphere	DSC	1
POMD	7	Molar enthalpy of transition or fusion, kJ/mol ; Crystal 2			Crystal 2 Crystal 1 Air at 1 atmosphere	DSC	1
POMD	7	Triple point temperature, K ; Crystal 1			Crystal 1 Liquid Air at 1 atmosphere	DTA	1
POMD	7	Triple point temperature, K ; Crystal 3			Crystal 3 Crystal 2 Air at 1 atmosphere	DTA	1
POMD	7	Triple point temperature, K ; Crystal 2			Crystal 2 Crystal 1 Air at 1 atmosphere	DTA	1
POMD	8	Molar enthalpy of transition or fusion, kJ/mol ; Crystal			Crystal Liquid Air at 1 atmosphere	DSC	1
POMD	8	Triple point temperature, K ; Crystal			Crystal Liquid Air at 1 atmosphere	DTA	1
POMD	8	Molar heat capacity at constant pressure, J/K/mol ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Small sample (50 mg) DSC	9
POMD	9	Molar enthalpy of transition or fusion, kJ/mol ; Crystal			Crystal Liquid Air at 1 atmosphere	DSC	1
POMD	9	Molar enthalpy of transition or fusion, kJ/mol ; Crystal 4			Crystal 4 Crystal 3 Air at 1 atmosphere	DSC	1
POMD	9	Molar enthalpy of transition or fusion, kJ/mol ; Crystal 3			Crystal 3 Crystal 2 Air at 1 atmosphere	DSC	1
POMD	9	Molar enthalpy of transition or fusion, kJ/mol ; Crystal 2			Crystal 2 Crystal 1 Air at 1 atmosphere	DSC	1
POMD	9	Triple point temperature, K ; Crystal 1			Crystal 1 Liquid Air at 1 atmosphere	DTA	1
POMD	9	Triple point temperature, K ; Crystal 4			Crystal 4 Crystal 3 Air at 1 atmosphere	DTA	1
POMD	9	Triple point temperature, K ; Crystal 3			Crystal 3 Crystal 2 Air at 1 atmosphere	DTA	1
POMD	9	Triple point temperature, K ; Crystal 2			Crystal 2 Crystal 1 Air at 1 atmosphere	DTA	1
POMD	10	Molar enthalpy of transition or fusion, kJ/mol ; Crystal			Crystal Liquid Air at 1 atmosphere	DSC	1
POMD	10	Triple point temperature, K ; Crystal			Crystal Liquid Air at 1 atmosphere	DTA	1
POMD	10	Molar heat capacity at constant pressure, J/K/mol ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Small sample (50 mg) DSC	9
POMD	11	Molar enthalpy of transition or fusion, kJ/mol ; Crystal			Crystal Liquid Air at 1 atmosphere	DSC	1
POMD	11	Triple point temperature, K ; Crystal			Crystal Liquid Air at 1 atmosphere	DTA	1
POMD	11	Refractive index (Na D-line) ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Standard Abbe refractometry	1
POMD	11	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Vibrating tube method	1
POMD	11	Molar heat capacity at constant pressure, J/K/mol ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Small sample (50 mg) DSC	10
POMD	11	Viscosity, Pa*s ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Capillary tube (Ostwald; Ubbelohde) method	1
POMD	11	Speed of sound, m/s ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Sing-around technique in a fixed-path interferometer	1

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

Physicochemical Characterization of New Sulfonate and Sulfate Ammonium Ionic Liquids

Mahrova, M.[Maria], Vilas, M.[Miguel], Dominguez, A.[Angeles], Gomez, E.[Elena], Calvar, N.[Noelia], Tojo, E.[Emilia]

ABSTRACT