Aqueous solubility of solvent extraction reagents: A monolayer dissolution method

D. J. Chaiko; K. Osseo-Asare

doi:10.1080/07366298708918568

Aqueous solubility of solvent extraction reagents: A monolayer dissolution method

D. J. Chaiko, K. Osseo-Asare

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Abstract

An experimental method, based on Langmuir film balance techniques, is presented for determining the aqueous solubility of sparingly soluble solvent extraction reagents. According to this method, the reagent of interest is spread as a monomolecular film on a Langmuir trough and the contraction of the film area accompanying extractant dissolution is monitored as a function of time while maintaining a constant film pressure. Quantitative analysis of the diffusion-controlled film dissolution kinetics yields the extractant concentration in equilibrium with the monolayer at a specified constant surface pressure. Solubility data obtained by applying this method to dinonylnaphthalene sulfonic acid (HDNNS) and 2-hydroxy-5-nonylbenzophenone oxime (HBPO, active extractant in LIX65N) are reported.

Original language	English (US)
Pages (from-to)	287-299
Number of pages	13
Journal	Solvent Extraction and Ion Exchange
Volume	5
Issue number	2
DOIs	https://doi.org/10.1080/07366298708918568
State	Published - Apr 1 1987

All Science Journal Classification (ASJC) codes

General Chemistry
General Chemical Engineering

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abstract = "An experimental method, based on Langmuir film balance techniques, is presented for determining the aqueous solubility of sparingly soluble solvent extraction reagents. According to this method, the reagent of interest is spread as a monomolecular film on a Langmuir trough and the contraction of the film area accompanying extractant dissolution is monitored as a function of time while maintaining a constant film pressure. Quantitative analysis of the diffusion-controlled film dissolution kinetics yields the extractant concentration in equilibrium with the monolayer at a specified constant surface pressure. Solubility data obtained by applying this method to dinonylnaphthalene sulfonic acid (HDNNS) and 2-hydroxy-5-nonylbenzophenone oxime (HBPO, active extractant in LIX65N) are reported.",

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AU - Osseo-Asare, K.

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N2 - An experimental method, based on Langmuir film balance techniques, is presented for determining the aqueous solubility of sparingly soluble solvent extraction reagents. According to this method, the reagent of interest is spread as a monomolecular film on a Langmuir trough and the contraction of the film area accompanying extractant dissolution is monitored as a function of time while maintaining a constant film pressure. Quantitative analysis of the diffusion-controlled film dissolution kinetics yields the extractant concentration in equilibrium with the monolayer at a specified constant surface pressure. Solubility data obtained by applying this method to dinonylnaphthalene sulfonic acid (HDNNS) and 2-hydroxy-5-nonylbenzophenone oxime (HBPO, active extractant in LIX65N) are reported.

AB - An experimental method, based on Langmuir film balance techniques, is presented for determining the aqueous solubility of sparingly soluble solvent extraction reagents. According to this method, the reagent of interest is spread as a monomolecular film on a Langmuir trough and the contraction of the film area accompanying extractant dissolution is monitored as a function of time while maintaining a constant film pressure. Quantitative analysis of the diffusion-controlled film dissolution kinetics yields the extractant concentration in equilibrium with the monolayer at a specified constant surface pressure. Solubility data obtained by applying this method to dinonylnaphthalene sulfonic acid (HDNNS) and 2-hydroxy-5-nonylbenzophenone oxime (HBPO, active extractant in LIX65N) are reported.

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Aqueous solubility of solvent extraction reagents: A monolayer dissolution method

Abstract

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