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The use of the amphoteric ion-exchange resin retardion 11A8 for inorganic separations

✍ Scribed by Rajmund Dybczyński; Elżbieta Sterlińska

Publisher
Elsevier Science
Year
1974
Tongue
English
Weight
554 KB
Volume
102
Category
Article
ISSN
1873-3778

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✦ Synopsis

The use of the "snake in a cage" amphoteric ion-exchange resin Retardion llA8 for various separations of inorganic ions was investigated.

Clean separations of Ga(III)-ln(III)-Tl(IlI), Pt(II)-Pd(JI), and Na(I)-Ni(Il)-Cu(II)-Zn(I1) mixtures have been achieved. In acidic media, in which the resin acts mainly as an anion exchanger, some residual activity of the acrylate polyanion seems to exist, resulting in significant changes in distribution coefficients in comparison with standard anion-exchange resins. In the case of elements that can exist as both cations and anions in solution (e.g., Ni, Co, Cu and Zn), the amphoteric properties of Retardion llA8 permit more specific isolation of certain elements from complex mixtures than would be possible with the use of monofunctional ion exchangers.

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