Plutonium(IV) and thorium(IV) hydrous polymer chemistry. [Conversion of hydrolye-bridged polymer links to oxygen-bridged linkages]

Technical Report · Mon May 01 04:00:00 EDT 1978

DOI:https://doi.org/10.2172/7095381· OSTI ID:7095381

Johnson, G L; Toth, L M

The recent attention given to Pu(IV) polymers has warranted a review of plutonium and thorium hydrolysis chemistry with respect to the various experimental approaches and insights gained therein. Differing terminologies used in the experimental procedures have often confused the understanding of the chemical processes which occur between the first hydrolysis reaction of the tetravalent actinide and its final dehydration to form the crystalline oxide. This report focuses on the polymer aging reaction which is defined here in terms of A. W. Thomas' ol to oxo conversion reaction and involves simply the conversion of hydroxyl-bridged polymer links to oxygen-bridged linkages. Thorium(IV) hydrolytic reactions are included because they are analogous in many respects to those of Pu(IV) and offer a simpler chemical system for experimental study. Future work using spectroscopic techniques should significantly improve the description of this aging phenomenon.

• Research Organization: Oak Ridge National Lab., Tenn. (USA)
• DOE Contract Number: W-7405-ENG-26
• OSTI ID: 7095381
• Report Number(s): ORNL/TM-6365
• 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 COMPOUNDS
CHEMICAL REACTIONS
COLLOIDS
DECOMPOSITION
DISPERSIONS
GELS
HYDROLYSIS
LYSIS
PLUTONIUM COMPOUNDS
POLYMERIZATION
SOLS
SOLVOLYSIS
THORIUM COMPOUNDS
TRANSURANIUM COMPOUNDS