Solubility of sodium chloride in phosphonium-based deep eutectic solvents

Fatemeh Saadat Ghareh Bagh; Mohamed Kamel Omar Hadj-Kali; Farouq S. Mjalli; Mohd Ali Hashim; Inas M. Alnashef

doi:10.1016/j.molliq.2014.09.025

Solubility of sodium chloride in phosphonium-based deep eutectic solvents

Fatemeh Saadat Ghareh Bagh, Mohamed Kamel Omar Hadj-Kali, Farouq S. Mjalli^*, Mohd Ali Hashim, Inas M. Alnashef

^*Corresponding author for this work

Petroleum and Chemical Engineering

Research output: Contribution to journal › Article › peer-review

18 Citations (Scopus)

Abstract

The solubility of sodium chloride (NaCl) in several phosphonium-based deep eutectic solvents (DESs) is studied in this work. Seven combinations of DESs were investigated. The solubility of NaCl increased with temperature in all DESs at all combinations. The type of salt and hydrogen bond donor (HBD) and the salt:HBD mole ratio of the DES affected the solubility of NaCl. The solubility of NaCl in DESs that use ethylene glycol or glycerol (neutral molecules) as HBDs is very low in comparison to DESs that use zinc (II) chloride (ZnCl₂) or ferric (III) chloride (FeCl₃) which are metal halides as complexing agents. DESs containing ZnCl₂produced the highest solubility. Ethyltriphenylphosphonium bromide:ZnCl₂DES possessed a NaCl solubility of 88.500 wt.% at 111 °C, and tetrabutylphosphonium bromide:ZnCl₂DES possessed NaCl solubilities of 70.120 wt.% and 75.000 wt.% at 100 °C and 160 °C, respectively. The thermodynamic activity coefficient non-random two-liquid (NRTL) model was used to correlate the solubility of NaCl in the studied DESs. The calculated values in some DESs showed satisfactory agreement with the experimental values.

Original language	English
Pages (from-to)	344-351
Number of pages	8
Journal	Journal of Molecular Liquids
Volume	199
DOIs	https://doi.org/10.1016/j.molliq.2014.09.025
Publication status	Published - Nov 2014

Keywords

Deep eutectic solvents
Ionic liquids
NRTL
Sodium
Sodium salt
Solubility

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Atomic and Molecular Physics, and Optics
Condensed Matter Physics
Spectroscopy
Physical and Theoretical Chemistry
Materials Chemistry

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10.1016/j.molliq.2014.09.025

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title = "Solubility of sodium chloride in phosphonium-based deep eutectic solvents",

abstract = "The solubility of sodium chloride (NaCl) in several phosphonium-based deep eutectic solvents (DESs) is studied in this work. Seven combinations of DESs were investigated. The solubility of NaCl increased with temperature in all DESs at all combinations. The type of salt and hydrogen bond donor (HBD) and the salt:HBD mole ratio of the DES affected the solubility of NaCl. The solubility of NaCl in DESs that use ethylene glycol or glycerol (neutral molecules) as HBDs is very low in comparison to DESs that use zinc (II) chloride (ZnCl2) or ferric (III) chloride (FeCl3) which are metal halides as complexing agents. DESs containing ZnCl2produced the highest solubility. Ethyltriphenylphosphonium bromide:ZnCl2DES possessed a NaCl solubility of 88.500 wt.% at 111 °C, and tetrabutylphosphonium bromide:ZnCl2DES possessed NaCl solubilities of 70.120 wt.% and 75.000 wt.% at 100 °C and 160 °C, respectively. The thermodynamic activity coefficient non-random two-liquid (NRTL) model was used to correlate the solubility of NaCl in the studied DESs. The calculated values in some DESs showed satisfactory agreement with the experimental values.",

keywords = "Deep eutectic solvents, Ionic liquids, NRTL, Sodium, Sodium salt, Solubility",

author = "{Ghareh Bagh}, {Fatemeh Saadat} and Hadj-Kali, {Mohamed Kamel Omar} and Mjalli, {Farouq S.} and Hashim, {Mohd Ali} and Alnashef, {Inas M.}",

note = "Publisher Copyright: {\textcopyright} 2014 Published by Elsevier B.V.",

year = "2014",

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doi = "10.1016/j.molliq.2014.09.025",

language = "English",

volume = "199",

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T1 - Solubility of sodium chloride in phosphonium-based deep eutectic solvents

AU - Ghareh Bagh, Fatemeh Saadat

AU - Hadj-Kali, Mohamed Kamel Omar

AU - Mjalli, Farouq S.

AU - Hashim, Mohd Ali

AU - Alnashef, Inas M.

PY - 2014/11

Y1 - 2014/11

N2 - The solubility of sodium chloride (NaCl) in several phosphonium-based deep eutectic solvents (DESs) is studied in this work. Seven combinations of DESs were investigated. The solubility of NaCl increased with temperature in all DESs at all combinations. The type of salt and hydrogen bond donor (HBD) and the salt:HBD mole ratio of the DES affected the solubility of NaCl. The solubility of NaCl in DESs that use ethylene glycol or glycerol (neutral molecules) as HBDs is very low in comparison to DESs that use zinc (II) chloride (ZnCl2) or ferric (III) chloride (FeCl3) which are metal halides as complexing agents. DESs containing ZnCl2produced the highest solubility. Ethyltriphenylphosphonium bromide:ZnCl2DES possessed a NaCl solubility of 88.500 wt.% at 111 °C, and tetrabutylphosphonium bromide:ZnCl2DES possessed NaCl solubilities of 70.120 wt.% and 75.000 wt.% at 100 °C and 160 °C, respectively. The thermodynamic activity coefficient non-random two-liquid (NRTL) model was used to correlate the solubility of NaCl in the studied DESs. The calculated values in some DESs showed satisfactory agreement with the experimental values.

AB - The solubility of sodium chloride (NaCl) in several phosphonium-based deep eutectic solvents (DESs) is studied in this work. Seven combinations of DESs were investigated. The solubility of NaCl increased with temperature in all DESs at all combinations. The type of salt and hydrogen bond donor (HBD) and the salt:HBD mole ratio of the DES affected the solubility of NaCl. The solubility of NaCl in DESs that use ethylene glycol or glycerol (neutral molecules) as HBDs is very low in comparison to DESs that use zinc (II) chloride (ZnCl2) or ferric (III) chloride (FeCl3) which are metal halides as complexing agents. DESs containing ZnCl2produced the highest solubility. Ethyltriphenylphosphonium bromide:ZnCl2DES possessed a NaCl solubility of 88.500 wt.% at 111 °C, and tetrabutylphosphonium bromide:ZnCl2DES possessed NaCl solubilities of 70.120 wt.% and 75.000 wt.% at 100 °C and 160 °C, respectively. The thermodynamic activity coefficient non-random two-liquid (NRTL) model was used to correlate the solubility of NaCl in the studied DESs. The calculated values in some DESs showed satisfactory agreement with the experimental values.

KW - Deep eutectic solvents

KW - Ionic liquids

KW - NRTL

KW - Sodium

KW - Sodium salt

KW - Solubility

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Solubility of sodium chloride in phosphonium-based deep eutectic solvents

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Keywords

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