Selective swelling of ion exchangers in mixed solvents and the effect on swelling on the sorption of ions

A. Lásztity, T. A. Belyavskaya

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

The swelling of KU-2 cation exchanger and AV-17 anion exchanger in the hydrogen, chloride, nitrate, sulphate and perchlorate forms were measured in mixed solvents. In mixed aqueous-organic solvents, preferential swelling by water was found. For the perchlorate form of the resin, the selective uptake of organic solvent was observed at NMeOH < 0.2 and at NMe2O < 0.5. The addition of mineral acids decreased the selective uptake of water by resins, especially in the case of resins in the sulphate form. This can be explained by the capability of the anion exchanger to take up mineral acids. The preferential sorption of water strongly influences the sorption of Ni(II), Co(II) and Cu(II) ions.

Original languageEnglish
Pages (from-to)203-208
Number of pages6
JournalJournal of Chromatography A
Volume102
Issue numberC
DOIs
Publication statusPublished - Dec 31 1974

ASJC Scopus subject areas

  • Analytical Chemistry
  • Biochemistry
  • Organic Chemistry

Fingerprint Dive into the research topics of 'Selective swelling of ion exchangers in mixed solvents and the effect on swelling on the sorption of ions'. Together they form a unique fingerprint.

  • Cite this