SONOCHEMICAL DISSOLUTION OF MNO2 COLLOIDS

Authors
SOSTARIC JZ MULVANEY P GRIESER F
Citation
Jz. Sostaric et al., SONOCHEMICAL DISSOLUTION OF MNO2 COLLOIDS, Journal of the Chemical Society. Faraday transactions, 91(17), 1995, pp. 2843-2846
Citations number
25
Categorie Soggetti
Chemistry Physical","Physics, Atomic, Molecular & Chemical
Journal title
Journal of the Chemical Society. Faraday transactions → ACNP
ISSN journal
09565000
Volume
91
Issue
17
Year of publication
1995
Pages
2843 - 2846
Database
ISI
SICI code
0956-5000(1995)91:17<2843:SDOMC>2.0.ZU;2-T
Abstract
The dissolution of colloidal MnO2 in aqueous solution induced by ultra sound has been investigated in the absence and presence of aliphatic a lcohols at a pH of 4.5. It was found that the presence of the alcohols greatly enhanced the amount and rate of the dissolution of MnO2. It i s shown that the rate of dissolution can be directly related to the Gi bbs surface excess of the alcohol at the air/water interface. A simple quantitative model is proposed to account for these observations.