This lecture introduces the chemistry of americium and curium. Both elements are discussed due to their similar chemical behavior, particularly in separations. However, important differences in their chemistry are highlighted. For americium pentavalent and hexavalent species are achievable. For curium, its unique fluorescence properties are highlighted. The nuclear properties of americium and curium isotopes are provided. Isotope production focus on those formed from multiple neutron capture. These isotopes, 241Am, 243Am, 244Cm and248Cm, are used to explore americium and curium chemistry. The basic solution chemistry is described, along with implications for fuel cycle separations. Methods for the separation of americium and curium are provided, including solvent extractions, anion exchange, precipitation, and molten salt techniques. Synthesis and characterization of americium and curium metals, alloys, and compounds are provided, with emphasis placed on those compounds of importance to the nuclear fuel cycle. The non-aqueous and coordination chemistry of these elements are introduced. The limited available data offers an avenue for novel explorations and future research directions.
Good last lecture, all the ideas tied in nicely and the similarities between the elements are quite abundant.
ReplyDeleteThe last few lectures have provided quite a bit of information specific to the discussed elements. It's all starting to run together a bit; I'm glad we are provided with the slides that we can reference back to.
ReplyDeleteThis is all tying together really well I agree with Shelby!
ReplyDeleteI liked learning about all the specific elements in these last few lectures and learning more specific chemistry about each of them.
ReplyDeletethanks for the comments. I think the lecture highlights the similarities of Am and Cm and how that can be used.
ReplyDeleteThe comments on PDF quiz 15 are now posted.
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