In situ study of the oxidation of galenite (natural PbS) in alkaline mediaby FTIR spectroscopy: Anode processes in the absence of oxygen

Authors
Chernyshova, IV
Citation
Iv. Chernyshova, In situ study of the oxidation of galenite (natural PbS) in alkaline mediaby FTIR spectroscopy: Anode processes in the absence of oxygen, RUSS J ELEC, 37(6), 2001, pp. 579-584
Citations number
38
Categorie Soggetti
Physical Chemistry/Chemical Physics
Journal title
RUSSIAN JOURNAL OF ELECTROCHEMISTRY
ISSN journal
10231935 → ACNP
Volume
37
Issue
6
Year of publication
2001
Pages
579 - 584
Database
ISI
SICI code
1023-1935(200106)37:6<579:ISSOTO>2.0.ZU;2-E
Abstract
Surface compounds on a galenite electrode anodically polarized from -0.5 to 0.7 V (NHE) in a sodium tetraborate deoxygenated solution (pH 9.18)are ide ntified in situ by the FTIR spectroscopy; a voltammogram is recorded simult aneously. It follows that lead hydroxide forms on galenite by the salt-film mechanism, giving lead thiosulfate and sulfite in the next oxidation step.