Anionenwirkung auf CaNa‐Gleichgewichte an Kationenaustauschern. 9. Mitteilung über Ionenaustauscher | Zendy

Deuel H. | Zendy; Hutschneker K. | Zendy; Stutz E. | Zendy; Frederiks J. C. | Zendy

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Anionenwirkung auf CaNa‐Gleichgewichte an Kationenaustauschern. 9. Mitteilung über Ionenaustauscher

Author(s) -

Deuel H.,

Hutschneker K.,

Stutz E.,

Frederiks J. C.

Publication year - 1957

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.19570400702

Subject(s) - chemistry , ethylenediamine , selectivity , ion exchange , inorganic chemistry , ion , medicinal chemistry , nuclear chemistry , catalysis , organic chemistry

Ca 2+ Na + exchange equilibria between Dowex 50 or cross‐linked pectic acid as cation exchangers and external solutions with different anions have been measured. The Ca 2+ selectivity of the exchangers is decreased by the anions in the following order: acetate, β‐indolyl acetate, citrate. Under not to acidic conditions ethylenediamine tetraacetate removes more Ca 2+ from the exchanger than the other anions. S‐shaped equilibrium curves are obtained with ethylenediamine tetraacetate, showing the bifunctionality of this anion towards Ca 2+ .

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