Research in actinide chemistry

Technical Report · Fri Jan 01 04:00:00 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: DOE; 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
400702* -- Radiochemistry & Nuclear Chemistry-- Properties of Radioactive Materials
ACTINIDE COMPLEXES
ACTINIDE ISOTOPES
ACTINIDE NUCLEI
ACTINIDES
ALPHA DECAY RADIOISOTOPES
AQUEOUS SOLUTIONS
CHEMISTRY
COMPLEXES
CURIUM 248
CURIUM ISOTOPES
DISPERSIONS
DOCUMENT TYPES
ELEMENTS
EUROPIUM COMPLEXES
EVEN-EVEN NUCLEI
HEAVY NUCLEI
HUMIC ACIDS
ISOTOPES
LIGANDS
METALS
MIXTURES
NEPTUNIUM COMPLEXES
NEPTUNYL COMPLEXES
NUCLEI
ORGANIC ACIDS
ORGANIC COMPOUNDS
PROGRESS REPORT
RADIOCHEMISTRY
RADIOISOTOPES
RARE EARTH COMPLEXES
SOLUTIONS
SPONTANEOUS FISSION RADIOISOTOPES
TERBIUM COMPLEXES
TRANSURANIUM COMPLEXES
URANIUM COMPLEXES
URANYL COMPLEXES
YEARS LIVING RADIOISOTOPES