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Ionengleichgewichte an einem bifunktionellen Kationenaustauscher. 7. Mitteilung über Ionenaustauscher
Author(s) -
Cornaz J. P.,
Deuel H.
Publication year - 1956
Publication title -
helvetica chimica acta
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.74
H-Index - 82
eISSN - 1522-2675
pISSN - 0018-019X
DOI - 10.1002/hlca.19560390508
Subject(s) - chemistry , bifunctional , selectivity , ion exchange , ion exchange resin , medicinal chemistry , ion , inorganic chemistry , organic chemistry , catalysis
Ion exchange equilibria for different cations against H + were measured on a bifunctional cation exchange resin containing both sulfonic and carboxylic groups (Lewatit H 236). The S‐shaped curves obtained are due to the bifunctionality of the resin. The special forms of these curves seem to be influenced by an interaction between the two exchanging groups. The selectivity increases as follows: Li+ < Na + < K + < Ca 2+ < Zn 2+ < Cu 2+ .