Foam separation of anions: Hydration, entropy, and selectivity

R. B. Grieves; D. Bhattacharyya

doi:10.1080/00032717108058657

Foam separation of anions: Hydration, entropy, and selectivity

R. B. Grieves, D. Bhattacharyya

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

12 Scopus citations

Abstract

A selectivity coefficient for the foam separation of Fe(CN)₆ ^4- Ag(S₂O³)₂ ^3-, Cr₂O₇ ^2- S₂O³ ^2- HPO₄ ^2-, and I^- from solutions containing ethylhexadecyldimethyl ammonium bromide is related to the absolute partial molal entropy of each ion. The entropy, which correlates well with the degree of hydration, enables an estimate of the selectivity of an ion flotation or foam fractionation by a surfactant.

Original language	English
Pages (from-to)	603-612
Number of pages	10
Journal	Analytical Letters
Volume	4
Issue number	9
DOIs	https://doi.org/10.1080/00032717108058657
State	Published - Sep 1 1971

Keywords

flotation
foam separation selectivity partial molal entropy

ASJC Scopus subject areas

Analytical Chemistry
Biochemistry
Spectroscopy
Clinical Biochemistry
Biochemistry, medical
Electrochemistry

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10.1080/00032717108058657

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AB - A selectivity coefficient for the foam separation of Fe(CN)6 4- Ag(S2O3)2 3-, Cr2O7 2- S2O3 2- HPO4 2-, and I- from solutions containing ethylhexadecyldimethyl ammonium bromide is related to the absolute partial molal entropy of each ion. The entropy, which correlates well with the degree of hydration, enables an estimate of the selectivity of an ion flotation or foam fractionation by a surfactant.

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Foam separation of anions: Hydration, entropy, and selectivity

Abstract

Keywords

ASJC Scopus subject areas

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