Sorption of pyridine-3-carboxylic acid and silver(I) from multicomponent aqueous solutions with Dowex-50 sulfonic cation exchange resin

The equilibrium distribution of pyridine-3-carboxylic acid, silver(I) ions, and protons between aqueous solutions and Dowex-50 sulfonic cation exchange resin was studied. The counter-ion composition of the cation exchange resin was determined by solving a system of equations for binary ion exchange...

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Bibliographic Details
Published in:Russian chemical bulletin 2021, Vol.70 (1), p.75-80
Main Authors: Altshuler, H. N., Shkurenko, G. Yu, Lyrshchikov, S. Yu, Altshuler, O. H.
Format: Article
Language:English
Subjects:
Acids
Aqueous solutions
Carboxylic acids
Cation exchanging
Cationic polymerization
Chemistry
Chemistry and Materials Science
Chemistry/Food Science
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Infrared spectroscopy
Inorganic Chemistry
Ion exchange
Ions
Mass balance
NMR spectroscopy
Organic Chemistry
Resins
Selectivity
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Summary:The equilibrium distribution of pyridine-3-carboxylic acid, silver(I) ions, and protons between aqueous solutions and Dowex-50 sulfonic cation exchange resin was studied. The counter-ion composition of the cation exchange resin was determined by solving a system of equations for binary ion exchange selectivity coefficients and the mass balance equation. According to FT IR and CPMAS 13 C NMR spectroscopy of solid samples, pyridine-3-carboxylic acid exists in the Dowex-50 phase as [H 2 L] + cations. High distribution constants indicate that pyridine-3-carboxylic acid and silver can be concentrated in the polymer phase.
ISSN:1066-5285
1573-9171
DOI:10.1007/s11172-021-3059-9