title: Extraction of Pd(II), Rh(III) and Ru(III) from HNO(3) aqueous solution to betainium bis(trifluoromethanesulfonyl)imide ionic liquid.
abstract: Extraction efficiencies of Pd(ii), Rh(iii), and Ru(iii) from HNO3(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(+).
authors.affiliation: Department of Materials Science, Shibaura Institute of Technology, 3-7-5, Toyosu, Koto-ku, 135-8548 Tokyo, Japan.
authors.forename: Kotoe
authors.initials: K
authors.lastname: Sasaki
authors.forename: Koichiro
authors.initials: K
authors.lastname: Takao
authors.forename: Tomoya
authors.initials: T
authors.lastname: Suzuki
authors.forename: Takahiro
authors.initials: T
authors.lastname: Mori
authors.forename: Tsuyoshi
authors.initials: T
authors.lastname: Arai
authors.forename: Yasuhisa
authors.initials: Y
authors.lastname: Ikeda