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DIANA AMORELLO

The formal redox potential of the Yb(III,II) Couple at 0°C in 3.22 molal NaCl medium

  • Autori: Amorello, D.; Romano, V.; Zingales, R.
  • Anno di pubblicazione: 2004
  • Tipologia: Articolo in rivista (Articolo in rivista)
  • OA Link: http://hdl.handle.net/10447/32172

Abstract

Following our previous investigations on aqueous solutions of hypooxidized and iperoxidized species, we managed, by lowering the temperature of the solutions to 0 °C, to obtain, by electrochemical methods, Yb(II) and Yb(III) mixtures, enough stable to determine by a potentiometric method the formal redox potential of the Yb(III, II) couple. Its value, in a large range of total Ytterbium concentration, is − 1233 ± 3 mV against the molal hydrogen electrode in the 3.22 m NaCl medium.