Research Program to Investigate the Fundamental Chemistry of Technetium
Technetium (99Tc, half-life = 2.13x105 years, b-emitter) is one of the radionuclides of major concern for nuclear waste disposal. This concern is due to the long half-life of 99Tc, the ease with which pertechnetate, TcO4 -, migrates in the geosphere, and the corresponding regulatory considerations. The problem of mobility of pertechnetate in the environment is compounded by the fact that pertechnetate is the thermodynamically stable form of technetium in oxidizing environments. Because of this stability, pertechnetate was presumed to be the predominant chemical form of technetium in the aqueous phase of nuclear waste tanks. However, recent studies indicate that a significant fraction of the technetium is in a different chemical form.1,2 These factors present challenges the disposition of technetium.
- Research Organization:
- Lawrence Berkeley National Lab., Berkeley, CA; Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
- Sponsoring Organization:
- USDOE Office of Environmental Management (EM) (US)
- OSTI ID:
- 829922
- Report Number(s):
- EMSP-60296-2000; R&D Project: EMSP 60296; TRN: US0405732
- Resource Relation:
- Other Information: PBD: 1 Jun 2000
- Country of Publication:
- United States
- Language:
- English
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Research Program to Investigate the Fundamental Chemistry of Technetium
Research Program to Investigate the Fundamental Chemistry of Technetium