title: The formal redox potential of the Yb(III, II) couple at 0 degrees C in 3.22 molal Nacl medium.
abstract: Following our previous investigations on aqueous solutions of hypooxidized and iperoxidized species, we managed, by lowering the temperature of the solutions to 0 degrees 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(IlI, 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.
authors.affiliation: University of Palermo, Department of Inorganic and Analytical Chemistry "Stanislao Cannizzaro", Viale delle Scienze - Parco D'Orleans II, 90128 Palermo, Italy.
authors.forename: Diana
authors.initials: D
authors.lastname: Amorello
authors.forename: Vincenzo
authors.initials: V
authors.lastname: Romano
authors.forename: Roberto
authors.initials: R
authors.lastname: Zingales
mesh_terms: D004563:Electrochemistry; D010084:Oxidation-Reduction; D012965:Sodium Chloride / Q000737:chemistry; D013696:Temperature; D015018:Ytterbium / Q000737:chemistry*
chemical_list: D012965:Sodium Chloride; D015018:Ytterbium