Accession Number : ADA335092

Title :   Analysis of Uranium Oxide Weathering by Molecular Spectroscopy

Descriptive Note : Final rept.

Corporate Author : AIR FORCE TECHNICAL APPLICATIONS CENTERPATRICK AFB FL

Personal Author(s) : Zickafoose, Matthew S.

PDF Url : ADA335092

Report Date : NOV 1997

Pagination or Media Count : 85

Abstract : A preliminary study of the weathering of uranium oxide particles diluted in diamond dust at ambient environmental conditions is presented. The primary weathering reaction is oxidation of the uranium from the +4 to +6 oxidation state, although formation of compounds such as carbonates and hydroxides is possible. Identification of the state of uranium oxide has been attempted using luminescence spectroscopy and diffuse reflectance Fourier transform infrared spectroscopy (DRIFTS). Luminescence spectra of nominal samples of three common oxides, UO3, U3O8, and UO2, have been measured showing significant spectral differences in peaks at 494 nm, 507 nm, 529 nm, and 553 nm. DRIFTS spectra of the same three oxides show significant differences in peaks at 960 /cm, 856 /cm, and 754 /cm. The differences in these peaks allow determination of the oxidation to the +6 state in these compounds.

Descriptors :   *MOLECULAR SPECTROSCOPY, *OXIDATION, *WEATHERING, SCATTERING, INFRARED SPECTROSCOPY, SPECTROSCOPY, PHOTOLUMINESCENCE, THESES, DIAMONDS, DUST, PARTICLES, OXIDES, CHEMICAL REACTIONS, REACTOR FUELS, LUMINESCENCE, HYDROXIDES, CARBONATES, URANIUM COMPOUNDS.

Subject Categories : Inorganic Chemistry
      Atomic and Molecular Physics and Spectroscopy

Distribution Statement : APPROVED FOR PUBLIC RELEASE