6533b835fe1ef96bd129ffad

RESEARCH PRODUCT

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

Roberto ZingalesVincenzo RomanoDiana Amorello

subject

YtterbiumMolalityAqueous solutionStandard hydrogen electrodeChemistryInorganic chemistryvanadium amino acids ionic mediumTemperaturechemistry.chemical_elementLarge rangeSodium ChlorideElectrochemistryRedoxAnalytical ChemistryElectrochemistryElectroanalytical methodYtterbiumOxidation-ReductionGeneral Environmental Science

description

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.

yearjournalcountryeditionlanguage
2004-06-23
10.1002/adic.200490030http://hdl.handle.net/10447/32172