Solvent extraction of pertechnetate with TBP from perchloric acid solution |
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| Authors: | T Omori M Tadokodo Y Suzuki H Suganuma K Yoshihara |
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| Institution: | (1) Radiochemistry Research Laboratory, Faculty of Science, Shizuoka University, 836 Ohya, 422 Shizuoka, (Japan);(2) Department of Chemistry, Faculty of Science, Tohoku University, 980 Sendai, (Japan) |
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| Abstract: | Solvent extraction mechanism of pertechnetic acid with TBP from perchloric acid solutions is discussed. When cyclohexane is used as a diluent of TBP, perchloric acid can be extracted in the form of HClO4(TBP)2 into the organic phase. The TBP extraction of pertechnetic acid competes with perchloric acid and its equilibria are expressed as follows: HTcO4+3TBP HTcO4(TBP)3 and HTcO4(TBP)3+TBPHTcO4(TBP)4. |
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