Concepedia

Calcium thorium phosphate (Whitlockite-type mineral). Synthesis and structure refinement

Sergei A. Khainakov, E. E. Loginova, Santiago Garcı́a-Granda, V. S. Kurazhkovskaya

Crystallography Reports · 2009 · 10 citations · 17 references

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Abstract

The crystal structure of a new calcium thorium phosphate has been refined by the full-profile Rietveld method using X-ray powder diffraction data. The sample has been synthesized by the sol-gel technique. The phosphate has been identified by X-ray powder diffraction and IR spectroscopy. The refined composition is represented by the formula Ca10.26Th0.12(PO4)7. The CaO n and PO4 polyhedra are distorted compared to the corresponding polyhedra in the basic compound β-Ca3(PO4)2.

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