Research in actinide chemistry

Technical Report · Fri Jan 01 00:00:00 EST 1993

DOI:https://doi.org/10.2172/6735291· OSTI ID:6735291

Choppin, G R

This research studies the behavior of the actinide elements in aqueous solution. The high radioactivity of the transuranium actinides limits the concentrations which can be studied and, consequently, limits the experimental techniques. However, oxidation state analogs (trivalent lanthanides, tetravalent thorium, and hexavalent uranium) do not suffer from these limitations. Behavior of actinides in the environment are a major USDOE concern, whether in connection with long-term releases from a repository, releases from stored defense wastes or accidental releases in reprocessing, etc. Principal goal of our research was expand the thermodynamic data base on complexation of actinides by natural ligands (e.g., OH[sup [minus]], CO[sub 3][sup 2[minus]], PO[sub 4][sup 3[minus]], humates). The research undertakes fundamental studies of actinide complexes which can increase understanding of the environmental behavior of these elements.

• Research Organization: Florida State Univ., Tallahassee, FL (United States). Dept. of Chemistry
• Sponsoring Organization: USDOE; USDOE, Washington, DC (United States)
• DOE Contract Number: FG05-87ER40329
• OSTI ID: 6735291
• Report Number(s): DOE/ER/40329-T2; FSU-01; ON: DE93011369
• Country of Publication: United States
• Language: English

Related Subjects

38 RADIATION CHEMISTRY, RADIOCHEMISTRY, AND NUCLEAR CHEMISTRY
ACTINIDES
RADIOCHEMISTRY
AQUEOUS SOLUTIONS
CURIUM 248
EUROPIUM COMPLEXES
HUMIC ACIDS
LIGANDS
NEPTUNYL COMPLEXES
PROGRESS REPORT
RARE EARTH COMPLEXES
TERBIUM COMPLEXES
URANYL COMPLEXES
ACTINIDE COMPLEXES
ACTINIDE ISOTOPES
ACTINIDE NUCLEI
ALPHA DECAY RADIOISOTOPES
CHEMISTRY
COMPLEXES
CURIUM ISOTOPES
DISPERSIONS
DOCUMENT TYPES
ELEMENTS
EVEN-EVEN NUCLEI
HEAVY NUCLEI
ISOTOPES
METALS
MIXTURES
NEPTUNIUM COMPLEXES
NUCLEI
ORGANIC ACIDS
ORGANIC COMPOUNDS
RADIOISOTOPES
SOLUTIONS
SPONTANEOUS FISSION RADIOISOTOPES
TRANSURANIUM COMPLEXES
URANIUM COMPLEXES
YEARS LIVING RADIOISOTOPES
400702* - Radiochemistry & Nuclear Chemistry- Properties of Radioactive Materials