Synthesis, characterization and thermal decomposition of hydroxylammonium uranyl acetate

The synthesis of hydroxylammonium uranyl acetate is described. The identity of the synthesized compound was confirmed by chemical and infrared analysi s. The intermediates and final products of the thermal decomposition were i dentified by means of thermogravimetric analysis, differential thermal anal ysis and X-ray diffraction. The thermal decomposition of hydroxylammonium u ranyl acetate involves several steps. Two of them are due to decomposition of this compound to UO2 via UO2(CH3COO)(2), and the third to the partial ox idation of UO2 to UO3 and the formation of U2O8 in the solid state at highe r temperature.