Abstract

The syntheses of a crystalline tin(IV) phosphate and tin(IV) arsenate are reported. These two new inorganic ion exchangers have been characterised on the basis of their X-ray powder patterns, chemical analysis, chemical stability and thermal dehydration behaviour. Their ion-exchange properties were investigated with alkali metal ion uptake curves. Tin(IV) phosphate and tin(IV) arsenate have a high ion-exchange capacity for Li + (7.9 and 6.6 mequiv./g, respectively) while they are extensively hydrolysed by the other alkali metal ions.

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