Gas-Phase Conversion of Uranium Monocarbide in a Nitrating Atmosphere

详细

Gas-phase conversion of UC in NO_x-air, NO_x-H₂0 (vapor)-air, and HN0₃ (vapor)-air atmospheres in the temperature interval from 298 to 673 K was studied. In the course of the gas-phase conversion in an NO_x-air atmosphere, UC transforms into uranium oxides and oxyhydroxides; uranyl nitrates and hydroxyni-trates are formed in smaller amounts. In NO_x-H₂0 (vapor)-air and HN0₃ (vapor)-air atmospheres, the major conversion products are uranyl nitrate hydrates, with the nitration occurring at a lower temperature than in an NO_x-air atmosphere.