UV–vis absorption spectroscopic study for on-line monitoring of uranium concentration in LiCl–KCl eutectic salt |
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Authors: | YJ Park SE Bae YH Cho JY Kim K Song |
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Institution: | aNuclear Chemistry Research Division, Korea Atomic Energy Research Institute, 150-1 Dukjin-dong, Yuseong-gu, Daejeon, 305-353, Republic of Korea |
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Abstract: | UV–vis absorption spectroscopy of uranium in LiCl–KCl eutectic salt at 773 K was studied for the on-site use in pyrochemical process. Uranium(III) chloride was electrochemically prepared from uranium metal in LiCl–KCl eutectic salt at 773 K by using chronopotentiometry. Three absorption peak positions were selected and calibrated for the quantitative analysis of uranium in the molten salt medium. The molar absorptivity and minimum detectable concentration for the selected wavelength were obtained with a confidence level of 99%. |
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Keywords: | UV&ndash vis absorption spectroscopy Analysis Uranium LiCl&ndash KCl eutectic salt |
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