Equilibria and speciation in the solvent extraction of lithium chloride by nonamethyl-14-crown-4 ether in 1-octanol

Yunfu Sun; Zhihong Chen; Kerri L. Cavenaugh; Richard A. Sachleben; Bruce A. Moyer

doi:10.1021/jp9533537

Equilibria and speciation in the solvent extraction of lithium chloride by nonamethyl-14-crown-4 ether in 1-octanol

Yunfu Sun, Zhihong Chen, Kerri L. Cavenaugh, Richard A. Sachleben, Bruce A. Moyer

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Abstract

The equilibria and speciation in the solvent extraction of LiCl by nonamethyl-14-crown-4 ether in 1-octanol have been determined by use of ion chromatography (1C) and inductively coupled plasma (ICP) analyses, equilibrium modeling with the program SXLSQI, and 7Li NMR measurements. SXLSQI modeling of the extraction data indicates the formation of a 1:1 metalicrown complex in the organic phase. The complex apparently exists as an ion-pair__Li(crown)Cl, which partially dissociates to the complex cation Li(crown)+and free chloride anion Cl~. Extraction of LiCl by 1-octanol to give the organic-phase ion-pair LiCl and its dissociated ions Li+ and Cl~ must be included in the data analysis. 7Li NMR measurements verify the existence of free and crown-complexed lithium species in 1-octanol, and the measurements quantitatively agree with results from the SXLSQI model.

Original language	English
Pages (from-to)	9500-9505
Number of pages	6
Journal	Journal of Physical Chemistry
Volume	100
Issue number	22
DOIs	https://doi.org/10.1021/jp9533537
State	Published - 1996
Externally published	Yes

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title = "Equilibria and speciation in the solvent extraction of lithium chloride by nonamethyl-14-crown-4 ether in 1-octanol",

abstract = "The equilibria and speciation in the solvent extraction of LiCl by nonamethyl-14-crown-4 ether in 1-octanol have been determined by use of ion chromatography (1C) and inductively coupled plasma (ICP) analyses, equilibrium modeling with the program SXLSQI, and 7Li NMR measurements. SXLSQI modeling of the extraction data indicates the formation of a 1:1 metalicrown complex in the organic phase. The complex apparently exists as an ion-pair__Li(crown)Cl, which partially dissociates to the complex cation Li(crown)+and free chloride anion Cl~. Extraction of LiCl by 1-octanol to give the organic-phase ion-pair LiCl and its dissociated ions Li+ and Cl~ must be included in the data analysis. 7Li NMR measurements verify the existence of free and crown-complexed lithium species in 1-octanol, and the measurements quantitatively agree with results from the SXLSQI model.",

author = "Yunfu Sun and Zhihong Chen and Cavenaugh, {Kerri L.} and Sachleben, {Richard A.} and Moyer, {Bruce A.}",

year = "1996",

doi = "10.1021/jp9533537",

language = "English",

volume = "100",

pages = "9500--9505",

journal = "Journal of Physical Chemistry",

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T1 - Equilibria and speciation in the solvent extraction of lithium chloride by nonamethyl-14-crown-4 ether in 1-octanol

AU - Sun, Yunfu

AU - Chen, Zhihong

AU - Cavenaugh, Kerri L.

AU - Sachleben, Richard A.

AU - Moyer, Bruce A.

PY - 1996

Y1 - 1996

N2 - The equilibria and speciation in the solvent extraction of LiCl by nonamethyl-14-crown-4 ether in 1-octanol have been determined by use of ion chromatography (1C) and inductively coupled plasma (ICP) analyses, equilibrium modeling with the program SXLSQI, and 7Li NMR measurements. SXLSQI modeling of the extraction data indicates the formation of a 1:1 metalicrown complex in the organic phase. The complex apparently exists as an ion-pair__Li(crown)Cl, which partially dissociates to the complex cation Li(crown)+and free chloride anion Cl~. Extraction of LiCl by 1-octanol to give the organic-phase ion-pair LiCl and its dissociated ions Li+ and Cl~ must be included in the data analysis. 7Li NMR measurements verify the existence of free and crown-complexed lithium species in 1-octanol, and the measurements quantitatively agree with results from the SXLSQI model.

AB - The equilibria and speciation in the solvent extraction of LiCl by nonamethyl-14-crown-4 ether in 1-octanol have been determined by use of ion chromatography (1C) and inductively coupled plasma (ICP) analyses, equilibrium modeling with the program SXLSQI, and 7Li NMR measurements. SXLSQI modeling of the extraction data indicates the formation of a 1:1 metalicrown complex in the organic phase. The complex apparently exists as an ion-pair__Li(crown)Cl, which partially dissociates to the complex cation Li(crown)+and free chloride anion Cl~. Extraction of LiCl by 1-octanol to give the organic-phase ion-pair LiCl and its dissociated ions Li+ and Cl~ must be included in the data analysis. 7Li NMR measurements verify the existence of free and crown-complexed lithium species in 1-octanol, and the measurements quantitatively agree with results from the SXLSQI model.

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JF - Journal of Physical Chemistry

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Equilibria and speciation in the solvent extraction of lithium chloride by nonamethyl-14-crown-4 ether in 1-octanol

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