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Chemistry

No. 3 (2020): Scientific journal of the Fergana State University

SORPTION OF COBALT (II) AND CHROMIUM (III) IONS NITROGEN - AND SULFUR-CONTAINING COMPLEXONS BASED ON POLYVINYLCHLORIDE

Submitted
June 26, 2023
Published
2023-06-26

Abstract

The presence of cation exchange sulfogroup and anion exchange aminogroups in the polycomplexon obtained on the basis of amination of sulfocationite is confirmed by IR spectroscopy. The kinetics of sorption of cobalt (II) and chromium (III) ions from aqueous solutions was studied under static conditions, and Langmuir constants were found at various temperatures. Based on the studies, the thermodynamic parameters of the sorption process were found: changes in the values of the isothermal - isobaric potential (ΔG), enthalpy (ΔН) and entropy (ΔS).

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