Hydrothermal synthesis and characterization of the thorium phosphate hydrogenphosphate, thorium hydroxide phosphate, and dithorium oxide phosphate

被引：41

作者：

Brandel, V

Dacheux, N

Genet, M

Podor, R

机构：

[1] Univ Paris 11, Inst Phys Nucl, Grp Radiochim, F-91406 Orsay, France

[2] Univ Nancy 1, Fac Sci, Lab Chim Solide Mineral, F-54506 Vandoeuvre Les Nancy, France

来源：

JOURNAL OF SOLID STATE CHEMISTRY | 2001年 / 159卷 / 01期

关键词：

hydrothermal synthesis; thorium phosphate-hydrogenphosphate; thorium hydroxide phosphate; dithorium oxide phosphate;

D O I：

10.1006/jssc.2001.9143

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Because of its low solubility in water and high thermal stability, thorium phosphate diphosphate (TPD), Th-4(PO4)(4)P2O7, seems to be a very good matrix for radionuclide immobilization, During the leaching studies of this compound the formation of a new phase, different from the TPD was observed. In order to identify this phase, two other thorium phosphates: thorium phosphate-hydrogenphosphate (TPHP), Th-2(PO4)(2)HPO4.H2O, and thorium hydroxide phosphate (THOP), Th(OH)PO4, were synthesized in hydrothermal conditions then characterized. It appeared that the neoformed phase was identical to the TPHP. (C) 2001 Academic Press.

引用

页码：139 / 148

页数：10