Use of radioactive tracers for selection of rare earth precipitants and ignition temperatures [electronic resource].
- Livermore, Calif. : Lawrence Livermore Laboratory, 1979. and Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
- Physical Description:
- Pages: 5 : digital, PDF file
- Additional Creators:
- Lawrence Livermore Laboratory and United States. Department of Energy. Office of Scientific and Technical Information
- Restrictions on Access:
- Free-to-read Unrestricted online access
- Variations have been found in the specific activity of ignited radioactive-labeled rare earth oxide samples. The variations appear to depend on the precipitating agents and temperatures. Using various precipitating agents and different ignition temperatures, samples of /sup 88/Y-, /sup 168/Tm-, and /sup 173/ /sup 174/Lu-labeled oxides were produced from stock solutions. Observed specific activities were compared to the known specific activities of the starting solutions. At 800/sup 0/C ignition temperatures, errors of 6% to 7% can be obtained for yttrium precipitated with 8-hydroxyquinoline or ammonia. Thulium and lutetium quinolates and cupferrates ignited at 800/sup 0/C are in error by 3 to 5%. Results show that temperatures in excess of 1000/sup 0/C are required for complete ignition of rare earth quinolates, cupferrates, hydroxides, and chlorides.
- Published through SciTech Connect., 09/01/1979., "ucrl-83402", " conf-791049-28", 23. conference on analytical chemistry in energy technology, Gatlinburg, TN, USA, 9 Oct 1979., and Smith, N.L.; Mecozzi, D.T.; Delucchi, E.S.
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