SECONDARY-ION MASS-SPECTROSCOPY (SIMS) AND KINETICS OF THE CATALYSIS OF BISULFITE OXIDATION BY AQUEOUS IRON

Authors
MARTIN RR LI JJ
Citation
Rr. Martin et Jj. Li, SECONDARY-ION MASS-SPECTROSCOPY (SIMS) AND KINETICS OF THE CATALYSIS OF BISULFITE OXIDATION BY AQUEOUS IRON, Canadian journal of chemistry, 74(11), 1996, pp. 2217-2220
Citations number
14
Categorie Soggetti
Chemistry
Journal title
Canadian journal of chemistry → ACNP
ISSN journal
00084042
Volume
74
Issue
11
Year of publication
1996
Pages
2217 - 2220
Database
ISI
SICI code
0008-4042(1996)74:11<2217:SM(AKO>2.0.ZU;2-T
Abstract
The catalytic activity of Fe(II) and Fe(III) in the aqueous oxidation of bisulphite by molecular oxygen at bisulphite concentrations similar to those in cloud water has been studied. Secondary Ion Mass Spectros copy (SIMS) of insoluble sulphates derived from bisulphite after oxida tion by O-18(2) gives different O-18/S-32 ratios for Fe(II) and Fe(III ), indicating that the oxidation mechanism is different in these two s pecies.