KINETICS AND MECHANISM OF THE OXIDATION OF HYDROGEN-PEROXIDE BY GOLD(III) IN AN AQUEOUS HYDROCHLORIC-ACID MEDIUM

Authors
SEN PK SANYAL A SENGUPTA KK
Citation
Pk. Sen et al., KINETICS AND MECHANISM OF THE OXIDATION OF HYDROGEN-PEROXIDE BY GOLD(III) IN AN AQUEOUS HYDROCHLORIC-ACID MEDIUM, Bulletin of the Chemical Society of Japan, 69(6), 1996, pp. 1543-1548
Citations number
39
Categorie Soggetti
Chemistry
Journal title
Bulletin of the Chemical Society of Japan → ACNP
ISSN journal
00092673
Volume
69
Issue
6
Year of publication
1996
Pages
1543 - 1548
Database
ISI
SICI code
0009-2673(1996)69:6<1543:KAMOTO>2.0.ZU;2-O
Abstract
The kinetics of the reaction between hydrogen peroxide and gold(III) i n a hydrochloric acid medium has been studied. The reaction is first o rder with respect to [Au-III] as well as [H2O2]. The reaction rate has an inverse dependence on [H+] and [Cl-]. AuCl4- AuCl3(OH2), and AuCl3 (OH)(-) are the reactive species of Au(III). A rate expression consist ent with the experimental findings has been proposed.