On the mechanism of ion exchange in crystalline zirconium phosphates—III The dehydration behavior of sodium ion exchanged phases of α-zirconium phosphate
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The dehydration characteristics of two sodium ion exchanged phases of crystalline α-zirconium phosphate have been determined. The half-exchanged phase, Zr(NaPO4(HPO4 · 5H2O, was found to form two lower hydrates and an anhydrous phase. At a temperature of 390° or higher sodium or dizirconium triphosphate, NaZr2(PO4)3, was obtained. The fully exchanged phae, Zr(NaPO4)2 · 3H2O, forms one lower hydrate and three anhydrous phases. The sodium ion may be eluted from all of these phases to recover the original α-zirconium phosphate crystals except for the fully exchanged phase heated to 800°C which yields a new form of zirconium phosphate. © 1970.
author list (cited authors)
Clearfield, A., & Medina, A. S.