Chemical processing, transuranium element

Leuze, R. E. Chemical Processing Requirements for Transuranium Element... 

Tracers. Isotopes, especially radioactive isotopes, that are used to trace the path of the atoms of an element in a chemical or biological process. (23.7) Transition metals. Elements that have incompletely filled d subshells or readily give rise to cations that have incompletely filled d subshells. (7.10) Transuranium elements. Elements with atomic numbers greater than 92. (23.4) Triple bond. Two atoms are held together by three pairs of electrons. (9.4) Triple point. The point at which the vapor, liquid, and solid states of a substance are in equilibrium. (11.9) Triprotic acid. Each unit of the acid yields three protons upon ionization. (4.3) Troposphere. The layer of the atmosphere which contains about 80 percent of the total mass of air and practically all of the atmosphere s water vapor. (17.1)... 

Adachi, T. Ohnuki, M. Yoshida, N. Sonobe, T. Kawamura, W. Takeishi, H. Gunji, K. Kimura, T. Suzuki, T. Nakahara, Y. Muromura, T. Kobayashi, Y. Okashita, H. Yamamoto, T. (1990). Dissolution Study of Spend PWR Fuel Dissolution Behavior and Chemical Properties of Insoluble Residues. Journal of Nuclear Materials, Vol. 174, No. 1, (November 1990), pp. 60-71, ISSN 0022-3115 Anderson, H. H. (1949). Alkali Plutonium(IV) Nitrates, In The Transuranium Elements, National Nuclear Energy Series IV, Vol. 14B, G. T. Seaborg, J. J. Katz, W. M. Manning, (Eds.), pp. 964-967, McGraw-Hill Book Co. Inc., New York, USA Ebert, K Henrich, E. Stahl, R. Bauder, U. (1989). A Continuous Crystallization Process for Uranium and Plutonium Refinement, Proceedings of 2nd International Conference on Separation Science Technology, pp. 346-352, Paper No. S5b, Hamilton, Ontario, Canada, October 1-4,1989... 

Fermi irradiated uranium with slow neutrons, and observed a variety of radioactivities that he tentatively identified as being transuranium elements [1]. We now know that these radioactive species were the products of the fission of the in the sample. Study of the chemical properties of these new nuclides led to the subsequent discovery of fission in 1939 [2, 3], Explanation of the fission process was closely connected to the creation of the liquid-drop model [4—6], in which the nucleus is treated like an incompressible charged fluid with surface tension. See Nuclear Structure of Superheavy Elements for more information on nuclear structure and the stability of the heaviest nuclides. 

Seaborg, Glenn Theodore (1912-99) An American chemist noted as one of the discoverers of plutonium (plutonium-238 and plutonium-239). Gaining his doctorate in 1937 from the University of California, he was appointed professor of chemistry in 1945. He was responsible for nuclear chemical research at the Lawrence Radiation Laboratory and headed the Manhattan Project group from 1942 to 1946 that devised the chemical extraction processes used in the production of plutonium. He codiscovered nine other transuranium elements, including the element seaborgium, atomic number 106, which is named after him. He was awarded the Nobel Prize in Chemistry in 1951. 

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