ABSTRACT

The solubility of sodium chloride (NaCl), sodium bromide (NaBr), and sodium carbonate (Na2CO3) was measured in nine ammonium-based deep eutectic solvents (DESs). The aim of the study is to assess the potential use of these DESs as solvents and electrolytes for the separation of sodium metal from its salts. The studied DESs were prepared by combining ammonium salts with various hydrogen-bond donors (HBDs) or metal halides. It was found that the solubility of the sodium salts in DESs increases with temperature in many cases. The maximum solubility of NaCl achieved was 100 w = 80 in N,N-diethylethanolammonium chloride:zinc(II) chloride (molar ratio 1:3) at 90 deg C. In addition, the solubility of the sodium salts was modeled successfully using the non-random two liquid (NRTL) model.

Compounds

#	Formula	Name
1	C5H14ClNO	choline chloride
2	C2H6O2	1,2-ethanediol
3	ClNa	sodium chloride
4	CNa2O3	sodium carbonate
5	BrNa	sodium bromide
6	C3H8O3	glycerol
7	C6H16ClNO	2-(diethylamino)ethanol hydrochloride
8	Cl2Zn	zinc chloride
9	Cl3Fe	ferric chloride
10	Cl2Sn	tin(II) chloride

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 2 3	Mass fraction - 3 ; Liquid	Temperature, K; Liquid Solvent: Amount ratio of component to other component of binary solvent - 1; Liquid	Pressure, kPa; Liquid	Liquid Crystal - 3	shake-flask method	16
POMD	1 2 4	Mass fraction - 4 ; Liquid	Temperature, K; Liquid Solvent: Amount ratio of component to other component of binary solvent - 1; Liquid	Pressure, kPa; Liquid	Liquid Crystal - 4	shake-flask method	16
POMD	1 2 5	Mass fraction - 5 ; Liquid	Temperature, K; Liquid Solvent: Amount ratio of component to other component of binary solvent - 1; Liquid	Pressure, kPa; Liquid	Liquid Crystal - 5	shake-flask method	16
POMD	6 1 3	Mass fraction - 3 ; Liquid	Temperature, K; Liquid Solvent: Amount ratio of component to other component of binary solvent - 1; Liquid	Pressure, kPa; Liquid	Liquid Crystal - 3	shake-flask method	23
POMD	6 1 5	Mass fraction - 5 ; Liquid	Temperature, K; Liquid Solvent: Amount ratio of component to other component of binary solvent - 1; Liquid	Pressure, kPa; Liquid	Liquid Crystal - 5	shake-flask method	18
POMD	2 3 7	Mass fraction - 3 ; Liquid	Temperature, K; Liquid Solvent: Amount ratio of component to other component of binary solvent - 7; Liquid	Pressure, kPa; Liquid	Liquid Crystal - 3	shake-flask method	24
POMD	6 3 7	Mass fraction - 3 ; Liquid	Temperature, K; Liquid Solvent: Amount ratio of component to other component of binary solvent - 7; Liquid	Pressure, kPa; Liquid	Liquid Crystal - 3	shake-flask method	18
POMD	1 8 3	Mass fraction - 3 ; Liquid	Temperature, K; Liquid Solvent: Amount ratio of component to other component of binary solvent - 1; Liquid	Pressure, kPa; Liquid	Liquid Crystal - 3	shake-flask method	20
POMD	1 8 5	Mass fraction - 5 ; Liquid	Temperature, K; Liquid Solvent: Amount ratio of component to other component of binary solvent - 1; Liquid	Pressure, kPa; Liquid	Liquid Crystal - 5	shake-flask method	21
POMD	8 3 7	Mass fraction - 3 ; Liquid	Temperature, K; Liquid Solvent: Amount ratio of component to other component of binary solvent - 7; Liquid	Pressure, kPa; Liquid	Liquid Crystal - 3	shake-flask method	28
POMD	3 9 7	Mass fraction - 3 ; Liquid	Temperature, K; Liquid	Solvent: Amount ratio of component to other component of binary solvent - 7; Liquid Pressure, kPa; Liquid	Liquid Crystal - 3	shake-flask method	4
POMD	1 3 10	Mass fraction - 3 ; Liquid	Solvent: Amount ratio of component to other component of binary solvent - 10; Liquid Temperature, K; Liquid Pressure, kPa; Liquid		Liquid Crystal - 3	x	1

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

Solubility of Sodium Salts in Ammonium-Based Deep Eutectic Solvents

Bagh, F. S. G.[Fatemeh Saadat Ghareh], Mjalli, F. S.[Farouq S.], Hashim, M. A.[Mohd Ali], Hadj-Kali, M. K. O.[Mohamed Kamel Omar], AlNashef, I. N.[Inas N.]

ABSTRACT