KINETICS OF MANGANESE-DIOXIDE DISSOLUTION IN SULFURIC-ACID-SOLUTIONS CONTAINING OXALIC-ACID

Authors
BATRAKOV VV GORICHEV IG PRIGOZHAYA SV IZOTOV AD KUZNETSOV AV
Citation
Vv. Batrakov et al., KINETICS OF MANGANESE-DIOXIDE DISSOLUTION IN SULFURIC-ACID-SOLUTIONS CONTAINING OXALIC-ACID, Inorganic materials, 34(2), 1998, pp. 149-156
Citations number
46
Categorie Soggetti
Material Science
Journal title
Inorganic materials → ACNP
ISSN journal
00201685
Volume
34
Issue
2
Year of publication
1998
Pages
149 - 156
Database
ISI
SICI code
0020-1685(1998)34:2<149:KOMDIS>2.0.ZU;2-5
Abstract
The kinetics of manganese dioxide dissolution were studied in sulfuric acid solutions containing oxalic acid. The dissolution rate was found to depend on the concentrations of MnHOx(+) and HOx(-) ions and to pa ss through a maximum at pH 1.6 +/- 0.2. The rate law and mechanism are suggested for manganese dioxide dissolution.