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Extraction of strontium from nitric acid solutions by selected crown ethers

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Abstract

The extraction of Sr from nitric acid solutions by the crown ethers, 12-crown-4, 15-crown-5, 18-crown-6 and DB 18-crown-6 dissolved in chloroform has been investigated. Sr is reasonably well extracted by 18-crown-6 compared to other crown ethers from different nitric acid solutions. The extraction is strongly dependent on the concentration of HNO3 and nitrate salts. Preliminary studies indicate that137Cs is also extracted to a limited extent by 18-crown-6 from nitrate medium. Stripping of Sr was achieved by an aqueous solution of low acidity, the crown ether being regenerated for subsequent extraction.

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  1. Hot Laboratories Centre, Atomic Energy Authority, 13758, Cairo, Egypt

    F. A. Shehata

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  1. F. A. Shehata
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Shehata, F.A. Extraction of strontium from nitric acid solutions by selected crown ethers. Journal of Radioanalytical and Nuclear Chemistry, Articles 185, 411–417 (1994). https://doi.org/10.1007/BF02041312

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  • DOI: https://doi.org/10.1007/BF02041312

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