The papers included in this volume were presented at the symposium on "Americium and Curium Chemistry and Technology" at the International Chemical Congress of Pacific Basin Societies in Honolulu, Hawaii, December 16-21, 1984. This symposium commemorated forty years of research on americium and curium. Accordingly, the papers included in this volume begin with historical perspectives on the discovery of americium and curium and the early characterization of their chemical properties, and then cover a wide range of subjects, such as thermodynamic properties, electronic structure, nuclear reactions, analytic chemistry, high pressure phase transitions, and technological aspects. Thus, this volume is a review of the chemistry of americium and curium, and provides a perspective on the current research on these elements forty years after their discovery. The editors would like to thank the participants in this symposium for their contributions. It is a pleasure to acknowledge the assistance of Ms. Barbara Moriguchi in handling the administrative aspects of the symposium and of the production of this volume. April 2, 1985 Norman M. Edelstein Materials and Molecular Research Division Lawrence Berkeley Laboratory University of California Berkeley, California 94720, U.S.A. James D. Navratil Rockwell International Rocky Flats Plant P.O. Box 464 Golden, Colorado 80402-0464, U.S.A. Wallace W. Schulz Rockwell Hanford P.O. Box 800 Richland, Washington 99352, U.S.A.

InhaltsangabeI Historical Aspects and General Papers.- The 40th Anniversary of the Discovery of Americium and Curium.- Reminiscences of an Instrumentalist.- Americium, Its Early History and Gram-Scale Separation.- 20 Years of Americium and Curium Research at the European Institute for Transuranium Elements.- Frontiers of Chemistry for Americium and Curium.- II Solution Chemistry and Analytical Procedures.- Studies of Americium and Curium Solution Chemistry in the USSR.- Coulometric Determination of Americium and Curium for the Preparation of Reference Solutions.- A Study on the Stability of Americium(V) and Americium(VI) in Nitrate Media.- Radiopolarographic Study of Americium and Curium.- Americium Titration Methods.- III Electronic Structure and Thermodynamics.- Electronic Structure of Neutral and Singly Ionized Curium.- Shifted Homologous Relationships Between the Transplutonium and Early Rare-Earth Metals.- Thermodynamic Systematics of Oxides of Americium, Curium, and Neighboring Elements.- Preparation and Properties of Some New Curium Compounds.- The Electronic and Magnetic Properties of Am and Cm.- Delocalisation of 5f Electrons in Americium Metal Under Pressure: Recent Results and Comparison with Other Actinides.- Preparation, Characterization and Solubility Product Constant of AmOHCO3.- IV Nuclear Studies, Environmental Studies, Separations, and Other Technological Aspects.- Heavy Ion Reactions on Curium Targets.- Synthesis of Transuranium Nuclides from Interaction of 16O with 238U.- A Study of the Production of Transuranium Elements and Its Application to the Solution Chemistry in Tohoku University.- Geochemical Studies on Americium and Plutonium in Soil.- Production and Recovery of Americium-241.- Production of Americium Isotopes in France.- Americium Metal Preparation on the Multigram Scale.

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