Collection of traces of metals on carboxy cellulose cation-exchanger.
Carboxy cellulose ("C-cell") is a cation-exchanger based on cellulose and having carboxyl functional groups with pK 3.46 +/- 0.05 at 20 +/- 1 degrees in 1M sodium chloride. The capacity of the exchanger is pH-dependent and the maximum is 0.22 mequiv/g. The capacity is also influenced by the dielectric constant of the medium and by the swelling of the cellulose. C-cell is suitable for the collection of metal ion impurities from aqueous and non-aqueous media.
Schulek
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Institute of Inorganic and Analytical Chemistry, Eötvös Lóránd University, Budapest, Hungary.
Remport-Horváth
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Lásztity
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Körös
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