Kinetics of tetraamminecopper(II)-catalysed oxidation of sulphur(IV) by peroxodisulphate in ammonia buffer

Authors
Gupta, KS Bhargava, P Manoj, SV
Citation
Ks. Gupta et al., Kinetics of tetraamminecopper(II)-catalysed oxidation of sulphur(IV) by peroxodisulphate in ammonia buffer, TRANSIT MET, 25(3), 2000, pp. 274-278
Citations number
29
Categorie Soggetti
Inorganic & Nuclear Chemistry
Journal title
TRANSITION METAL CHEMISTRY
ISSN journal
03404285 → ACNP
Volume
25
Issue
3
Year of publication
2000
Pages
274 - 278
Database
ISI
SICI code
0340-4285(200006)25:3<274:KOTOOS>2.0.ZU;2-H
Abstract
The kinetics of tetraamminecopper(II)-catalysed oxidation of SO32- to SO42- in ammonia buffers and in a nitrogen atmosphere obeys the rate law: -d[S-I V]/dt = k(2)[Cu-II][SO32-][NH3](-1). There is spectrophotometric evidence f or the formation of the intermediate complex [Cu(NH3)(3)(SO3)] in a pre-equ ilibrium.