SYNTHESIS AND CHARACTERIZATION OF TETRAVALENT ACTINIDE ORTHOPHOSPHATES WITH ALKALI-METALS

Authors
VOLKOV YF MELKAYA RF SPIRYAKOV VI TIMOFEEV GA
Citation
Yf. Volkov et al., SYNTHESIS AND CHARACTERIZATION OF TETRAVALENT ACTINIDE ORTHOPHOSPHATES WITH ALKALI-METALS, Radiochemistry, 36(3), 1994, pp. 222-226
Citations number
6
Categorie Soggetti
Chemistry Analytical","Chemistry Inorganic & Nuclear
Journal title
Radiochemistry → ACNP
ISSN journal
10663622
Volume
36
Issue
3
Year of publication
1994
Pages
222 - 226
Database
ISI
SICI code
1066-3622(1994)36:3<222:SACOTA>2.0.ZU;2-Z
Abstract
A series of double phosphates of formula AM(2)(PO4)(3), where A = Li, Na, K, Rb, Cs; M = U, Np, Pu, is prepared by solid-state reactions. Va rious polymorphic modifications of AM(2)(PO4)(3) are identified by usi ng x-ray diffraction and IR spectroscopic analyses of the products fro m stepwise annealing. The crystal structure type, thermal stability of the modifications, and nature of the polymorphic transformations depe nd on the nature of the actinide and alkali metal.