Extraction of Pd(ii), Rh(iii) and Ru(iii) from HNO3 aqueous solution to betainium bis(trifluoromethanesulfonyl)imide ionic liquid

Kotoe Sasaki, Koichiro Takao, Tomoya Suzuki, Takahiro Mori, Tsuyoshi Arai, Yasuhisa Ikeda

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Extraction efficiencies of Pd(ii), Rh(iii), and Ru(iii) from HNO 3(aq) to [Hbet][Tf2N] were demonstrated, i.e., Pd(ii) is the most extractable, Rh(iii) is medium extractable, and Ru(iii) is the least extractable. The extraction seems to proceed through coordination of betaine to the metal ions and the cation exchange of the formed complex with H+.

Original languageEnglish
Pages (from-to)5648-5651
Number of pages4
JournalDalton Transactions
Issue number15
Publication statusPublished - 2014 Apr 21


ASJC Scopus subject areas

  • Inorganic Chemistry

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