Bulletin of the Chemical Society of Japan
Online ISSN : 1348-0634
Print ISSN : 0009-2673
ISSN-L : 0009-2673
Studies of the Hydrous Tin(IV) Oxide Ion-exchanger. II. Some Properties as a Cation-exchanger
Yasushi InoueHiromichi Yamazaki
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1984 Volume 57 Issue 6 Pages 1534-1538

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Abstract

In order to elucidate the fundamental properties of hydrous tin(IV) oxide as a cation-exchanger, the stoichiometry of cation exchange and its acid-base property were studied by means of the uptake curves for alkali-metal ions. The results are summarized as follows: 1) The equivalent exchange between the hydrogen ion and either alkali-metal or alkaline-earth-metal ions holds, irrespective of the ionic strength of the solution and the extent of exchange. 2) The water content in the exchanger depends on the ionic composition. 3) This material is an amphoteric ion-exchanger, with at least two kinds of weakly dissociable ion-exchange sites, and the conditional dissociation constant depends on the ionic composition of the exchanger. The stability to various reagents was also examined.

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