Shift of the standard potential scale and changes of surface potentials between water and some non-aqueous solvents

✍ Scribed by B. Jakuszewski; H. Scholl

• Publisher: Elsevier Science
• Year: 1972
• Tongue: English
• Weight: 491 KB
• Volume: 17
• Category: Article
• ISSN: 0013-4686
• DOI: 10.1016/0013-4686(72)90026-6

✦ Synopsis

Kenrick's method has been used to obtain real free energies of soivation '"A%, of H+ and Clin water-ethanol and water-DMF solutions. The difference of the surface potentials bXHSo -x*) has been determined by the extrapolation of the differences of the real free energies of solvation of ions in water and in the mixed solvents as a function of the normal electrode potentials (E" -E"*)A~,A~cI. The shift of the potential scale "Asp H+e in the investigated solvents has been determined in the same way. R&mm&Par la m&hode de Kenrick on a determine des diff&ences r&elles d'energies libres des solvatations "A%* nour H+ et Cl-dans les melanges eau-ethanol et eau-DMF. On a determine la difference des Potentiels superficiels (xHsO -xz) ainsi que le deplacemant d'&helle de potentiel wAB~u+e dans les solvants en question 51 l'aide d'extrapolations des differences rcelles d'cnergies libres de solvatation des ions dam I'eau et dans les solvants mixtes, en fonction des potentiels normaux d'electrode (E" -E"*)A~A~c~.