ABSTRACT

The solubilities of a novel third generation of the precursor of ionic liquids, named ethyl-(2-hydroxyethyl)-dimethylammonium bromide, C2Br, in alcohols {ethanol, 1-butanol, 1-hexanol, 1-octanol, 1-decanol, 1-dodecanol, 2-butanol, 2-methyl-2-propanol (tert-butyl alcohol)} have been measured by a dynamic method from 240 to 440 K. The solubility of ethyl-(2-hydroxyethyl)-dimethylammonium bromide in primary alcohols decreases with an increase of the molecular weight of the alcohol from C2 to C12. The differences in solubilities between the primary and secondary alcohols are not significant. The solubility of C2Br in tert-butyl alcohol is much lower than in 1-butanol and 2-butanol. The data were correlated by means of the UNIQUAC ASM, NRTL1 and NRTL2 equations, utilizing parameters derived from the (solid + liquid) equilibrium (SLE) data. The root-mean-square deviations of the solubility temperatures for all calculated data are from 2.36 to 7.17K and depend on the particular equation used. In the calculations, the existence of a solid solid first-order phase transition in pure C2Br has also been taken into account.

Compounds

#	Formula	Name
1	C4H10O	butan-1-ol
2	C6H14O	hexan-1-ol
3	C8H18O	octan-1-ol
4	C10H22O	decan-1-ol
5	C12H26O	dodecan-1-ol
6	C4H10O	butan-2-ol
7	C4H10O	2-methylpropan-2-ol
8	C6H16BrNO	ethyl(2-hydroxyethyl)dimethylammonium bromide
9	C2H6O	ethanol

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	8	Normal melting temperature, K ; Crystal 1			Crystal 1 Liquid Air at 1 atmosphere	VISOBS	1
POMD	1 8	Solid-liquid equilibrium temperature, K ; Liquid	Mole fraction - 8; Liquid	Pressure, kPa; Liquid	Liquid Crystal 1 - 8	VISOBS:UFactor:8	7
POMD	1 8	Solid-liquid equilibrium temperature, K ; Liquid	Mole fraction - 8; Liquid	Pressure, kPa; Liquid	Liquid Crystal 2 - 8	VISOBS:UFactor:8	9
POMD	9 8	Solid-liquid equilibrium temperature, K ; Liquid	Mole fraction - 8; Liquid	Pressure, kPa; Liquid	Liquid Crystal 2 - 8	VISOBS:UFactor:16	17
POMD	9 8	Solid-liquid equilibrium temperature, K ; Liquid	Mole fraction - 8; Liquid	Pressure, kPa; Liquid	Liquid Crystal 1 - 8	VISOBS:UFactor:8	6
POMD	6 8	Solid-liquid equilibrium temperature, K ; Liquid	Mole fraction - 8; Liquid	Pressure, kPa; Liquid	Liquid Crystal 1 - 8	VISOBS:UFactor:8	9
POMD	6 8	Solid-liquid equilibrium temperature, K ; Liquid	Mole fraction - 8; Liquid	Pressure, kPa; Liquid	Liquid Crystal 2 - 8	VISOBS:UFactor:8	9
POMD	7 8	Eutectic temperature, K ; Crystal 2 - 8			Crystal 2 - 8 Crystal - 7 Liquid Air at 1 atmosphere	PHASDIA:	1
POMD	7 8	Eutectic composition: mole fraction - 8 ; Crystal 2 - 8			Crystal 2 - 8 Crystal - 7 Liquid Air at 1 atmosphere	Derived from phase diagram analysis	1
POMD	7 8	Solid-liquid equilibrium temperature, K ; Liquid	Mole fraction - 8; Liquid	Pressure, kPa; Liquid	Liquid Crystal 1 - 8	VISOBS:UFactor:8	11
POMD	7 8	Solid-liquid equilibrium temperature, K ; Liquid	Mole fraction - 8; Liquid	Pressure, kPa; Liquid	Liquid Crystal 2 - 8	VISOBS:UFactor:8	10
POMD	7 8	Solid-liquid equilibrium temperature, K ; Liquid	Mole fraction - 8; Liquid	Pressure, kPa; Liquid	Liquid Crystal - 7	VISOBS:UFactor:8	4
POMD	2 8	Solid-liquid equilibrium temperature, K ; Liquid	Mole fraction - 8; Liquid	Pressure, kPa; Liquid	Liquid Crystal 1 - 8	VISOBS:UFactor:8	7
POMD	2 8	Solid-liquid equilibrium temperature, K ; Liquid	Mole fraction - 8; Liquid	Pressure, kPa; Liquid	Liquid Crystal 2 - 8	VISOBS:UFactor:8	21
POMD	3 8	Eutectic temperature, K ; Crystal - 3			Crystal - 3 Crystal 2 - 8 Liquid Air at 1 atmosphere	Derived from phase diagram analysis	1
POMD	3 8	Eutectic composition: mole fraction - 8 ; Crystal - 3			Crystal - 3 Crystal 2 - 8 Liquid Air at 1 atmosphere	Derived from phase diagram analysis	1
POMD	3 8	Solid-liquid equilibrium temperature, K ; Liquid	Mole fraction - 8; Liquid	Pressure, kPa; Liquid	Liquid Crystal 1 - 8	VISOBS:UFactor:8	11
POMD	3 8	Solid-liquid equilibrium temperature, K ; Liquid	Mole fraction - 8; Liquid	Pressure, kPa; Liquid	Liquid Crystal 2 - 8	VISOBS:UFactor:8	20
POMD	3 8	Solid-liquid equilibrium temperature, K ; Liquid	Mole fraction - 8; Liquid	Pressure, kPa; Liquid	Liquid Crystal - 3	VISOBS:UFactor:8	4
POMD	4 8	Eutectic temperature, K ; Crystal - 4			Crystal - 4 Crystal 2 - 8 Liquid Air at 1 atmosphere	PHASDIA:	1
POMD	4 8	Eutectic composition: mole fraction - 8 ; Crystal - 4			Crystal - 4 Crystal 2 - 8 Liquid Air at 1 atmosphere	OTHER:::sMethod:synthetic method	1
POMD	4 8	Solid-liquid equilibrium temperature, K ; Liquid	Mole fraction - 8; Liquid	Pressure, kPa; Liquid	Liquid Crystal 1 - 8	VISOBS:UFactor:8	12
POMD	4 8	Solid-liquid equilibrium temperature, K ; Liquid	Mole fraction - 8; Liquid	Pressure, kPa; Liquid	Liquid Crystal 2 - 8	VISOBS:UFactor:8	8
POMD	4 8	Solid-liquid equilibrium temperature, K ; Liquid	Mole fraction - 8; Liquid	Pressure, kPa; Liquid	Liquid Crystal - 4	VISOBS:UFactor:8	3
POMD	5 8	Eutectic temperature, K ; Crystal - 5			Crystal - 5 Crystal 2 - 8 Liquid Air at 1 atmosphere	PHASDIA:	1
POMD	5 8	Eutectic composition: mole fraction - 8 ; Crystal - 5			Crystal - 5 Crystal 2 - 8 Liquid Air at 1 atmosphere	PHASDIA:	1
POMD	5 8	Solid-liquid equilibrium temperature, K ; Liquid	Mole fraction - 8; Liquid	Pressure, kPa; Liquid	Liquid Crystal 1 - 8	VISOBS:UFactor:8	7
POMD	5 8	Solid-liquid equilibrium temperature, K ; Liquid	Mole fraction - 8; Liquid	Pressure, kPa; Liquid	Liquid Crystal 2 - 8	VISOBS:UFactor:16	7
POMD	5 8	Solid-liquid equilibrium temperature, K ; Liquid	Mole fraction - 8; Liquid	Pressure, kPa; Liquid	Liquid Crystal - 5	VISOBS:UFactor:8	2

Thermodynamics Research Center / ThermoML | Fluid Phase Equilibria

Solubility of ethyl-(2-hydroxyethyl)-dimethylammonium bromide in alcohols (C2 C12)

Domanska, U.[Urszula], Bogel-Lukasik, R.[Rafal]

ABSTRACT