Raman Spectroscopic Study of Uranium(VI) In Calcium Nitrate Hydrate Melt

The changes in v 1 symmetric vibration of UO 2 2+ and v 4 of NO 3 - in the calcium nitrate hydrate melt of various water content, Ca(NO 3 ) 2 ●RH 2 O, were studied by Raman spectrometry. The vibration of UO 2 2+ in the hydrate melt was also studied by fluorescence spectrometry. The obtained Raman sp...

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Bibliographic Details
Published inJournal of nuclear science and technology Vol. 39; no. sup3; pp. 336 - 339
Main Authors Fujii, Toshiyuki, Yamana, Hajimu, Moriyama, Hirotake
Format Journal Article
LanguageEnglish
Published Taylor & Francis 01.11.2002
Subjects
calcium nitrate
hydrate melt
Raman spectroscopy
TBP
uranyl
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Summary:The changes in v 1 symmetric vibration of UO 2 2+ and v 4 of NO 3 - in the calcium nitrate hydrate melt of various water content, Ca(NO 3 ) 2 ●RH 2 O, were studied by Raman spectrometry. The vibration of UO 2 2+ in the hydrate melt was also studied by fluorescence spectrometry. The obtained Raman spectra were discussed in conjunction with the extraction results, which was the extraction of uranium(VI) from Ca(NO 3 ) 2 ●RH 2 O by a PUREX solvent. In the extraction study, an extraction trend change was observed around R = 6. This would be due to a change on the circumstance of uranyl ion in the hydrate melt structure, and was discussed with Raman spectra and fluorescence spectra.
ISSN:0022-3131
1881-1248
DOI:10.1080/00223131.2002.10875477