Distribution behavior of astatine: Solvent extraction and back extraction |
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| Authors: | M S Sultana A Toyoshima N Takahashi H Baba |
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| Institution: | (1) Department of Chemistry, Graduate School of Science, Osaka University, Toyonaka, Osaka, 560-0043, Japan;(2) Bangladesh Atomic Energy Commission, Dhaka, Bangladesh |
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| Abstract: | The distribution behavior of astatine was studied at tracer concentrations and over a wide range of carrier iodide concentration in both solvent extraction and back extraction processes. Astatine compounds were extracted instantly into the organic solvent, CS2 from the carrier free and carrier iodide containing solutions. Back extraction of astatine with various NaOH solutions followed by solvent extraction caused the hydrolysis of astatine. The distribution behavior of astatine was explained by the extraction reaction schemes. |
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