KINETICS AND MECHANISM OF SCANDIUM DISSOLUTION IN SULFURIC-ACID-SOLUTIONS

Authors
VYAZOVIKINA NV KRAPIVKA NA PONOMAREV SS
Citation
Nv. Vyazovikina et al., KINETICS AND MECHANISM OF SCANDIUM DISSOLUTION IN SULFURIC-ACID-SOLUTIONS, Russian journal of electrochemistry, 33(9), 1997, pp. 950-957
Citations number
19
Categorie Soggetti
Electrochemistry
Journal title
Russian journal of electrochemistry → ACNP
ISSN journal
10231935
Volume
33
Issue
9
Year of publication
1997
Pages
950 - 957
Database
ISI
SICI code
1023-1935(1997)33:9<950:KAMOSD>2.0.ZU;2-9
Abstract
The kinetics of the chemical and electrochemical dissolution of scandi um in sulfuric acid solutions during corrosion and polarization is stu died and the corresponding mechanisms are proposed. Chemical compositi on of passivating layers that form on the metal surface in corrosion a nd polarization is determined using the Auger electron, X-ray photoele ctron, and IR spectroscopy techniques. It is shown that the Sc2O3 oxid e possessing weak protective properties is the main component of the p assivating layer.