The synthesis, characterization and thermal decomposition of pyridinium ura
nyl acetate are presented. The identification of the compound was performed
by chemical analysis and by infrared spectroscopy. Thermal decomposition o
f pyridinium uranyl acetate took place in several steps due to the decompos
ition of the salt to UO2, and to partial oxidation to UO3 and formation of
U3O8 The intermediate and the final products of thermal analysis were ident
ified by means of thermogravimetric, differential thermal analysis and X-ra
y powder diffraction. (C) 2000 Elsevier Science B.V. All rights reserved.