ISSN print edition: 0366-6352 ISSN electronic edition: 1336-9075 Registr. No.: MK SR 9/7 Published monthly

Polarization of an electrode to extreme positive potentials in a.c. oscillographic polarography

V. P. Gladyshev

Kazakh State Univ., Alma-Ata.

Abstract: In a.c. oscillographic polarography, a hanging Hg drop or a streaming Hg electrode in 0.1-1 M supporting electrolyte (KCl, HCl, HBr) was polarized to potentials by 1.5 v. more pos. than that corresponding to anodic dissoln, of Hg. On the oscillographic curves dE/dt = f(E), inflections corresponding to redn. of MnO₄^-, S₂O₈^--, H₂O₂, and Au³⁺, or to pptn. of Hg⁺ by anions like SO₄^--, PO₄³-, and (COO)₂^-- can be observed. The electrode is covered by a film of Hg oxides and halides which do not interfere with the electrode processes.

Full paper in Portable Document Format: 178a575.pdf (in Slovak)

Chemical Papers 17 (8) 575–580 (1963)