Liquid-liquid extraction of uranyl nitrates using tributyl phosphate (TBP/kerosene) has resulted in six historical ‘red-oil’ explosions. A great deal of effort to mitigate this problem has been undertaken; however, the potential distribution of the resulting actinide particles from these fires is unknown. This effort focused on developing meaningful lanthanide (Ln) surrogates to test and understand the particulate distribution of the airborne combustion products that occur from fires containing actinide waste. Characterization of “Ln(NO3)3(TBP)3” and [Ln(NO3)3(TPhP)3] (TPhP = triphenylphosphate) solution and solid state properties were determined and then used in pyrolysis experiments. An unusual coordination and reduction of the crystallizing solvent (acetone) of the [Ln(NO3)3H2O]/TPhP/kerosene reaction mixture was found to occur. The development of these surrogates and their utility will be presented.

Lanthanide surrogate development for actinide aerosol waste

Macromolecular Chemistry: The Second Century

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ACS Spring 2020 National Meeting & Expo

The official archive and repository for all ACS Meetings & Expositions abstracts and select posters or presentations.