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KMID : 1059519950390070543
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Journal of the Korean Chemical Society
1995 Volume.39 No. 7 p.543 ~ p.558
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Synthesis and Characterization of Tetranuclear Molybdenum(Ⅵ) Complexes with Butylamidoxime Derivatives
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Roh Soo-Gyun
Oh Sang-Oh
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Abstract
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In order to separate and preconcentrate 137Cs selectively, NH4PW-silica gel inorganic ion exchanger was prepared by dispersion of the NH4PW particles into the silica gel matrix, and its sorption properties for Cs+ and physical and chemical stabilities were investigated. It was thermally stable up to 400℃ and at pH range below 9.5. Overall capacities of the 70 wt% NH4PW-silica gel in 0.1 and 5 M HNO3 solutions were 0.31 and 0.27 mmol/g respectively. It was identified for the 70 wt% NH4PW-sxilica gel to remove above 99% of 134Cs and 137Cs from a highly acidic radioactive waste solution containing various radionuclides.
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