CRYSTAL-CHEMICAL FEATURES OF SODIUM-PU(III) DOUBLE PHOSPHATES AND CERTAIN OTHER F-ELEMENT PHOSPHATES

Authors
BURNAEVA AA VOLKOV YF KRYUKOVA AI
Citation
Aa. Burnaeva et al., CRYSTAL-CHEMICAL FEATURES OF SODIUM-PU(III) DOUBLE PHOSPHATES AND CERTAIN OTHER F-ELEMENT PHOSPHATES, Radiochemistry, 36(4), 1994, pp. 315-321
Citations number
34
Categorie Soggetti
Chemistry Analytical","Chemistry Inorganic & Nuclear
Journal title
Radiochemistry → ACNP
ISSN journal
10663622
Volume
36
Issue
4
Year of publication
1994
Pages
315 - 321
Database
ISI
SICI code
1066-3622(1994)36:4<315:CFOSDP>2.0.ZU;2-I
Abstract
The composition and structure of orthophosphates isolated from a coole d PuCl3-Na3PO4-NaCl(1:1.5-10:200 mole) melt are interpreted as a funct ion of the Pu:PO4 ratio. The resulting solid phases are distinct doubl e orthophosphates of formula Na3Pu2(PO4)(3) and Na3Pu(PO4)(2), which a re assigned on the basis of their structure types as a monazite and gl aserite, respectively. The crystal-chemical features of the structure and formation of the trivalent lanthanide and actinide double phosphat es with alkali metals are analyzed.