Investigations of crystalline structure of gamma-zirconium phosphate

The γ-crystalline form zirconium phosphate was investigated. For its lattice parameters was found: a=0.538 nm, b=0.664 nm, c=2.459 nm, β=94.2deg and basal spacing (d)=1.22 nm. It was determined by IR spectrophotometric method that the phosphate is present in groups of H2 PO4- and PO43- of equal quantity. Two moles of crystalline water per formula unit were found where the moles are bound differently. The compound can be characterized by the following chemical formula: Zr(HPO4)(PO4)x 2H2O. (author). 13 refs., 3 figs., 1 tabs