EFFECT OF IONIC-STRENGTH ON BI(III) REDUCTION FROM PERCHLORATE MEDIUM

Authors
KOMORSKYLOVRIC S LOVRIC M BRANICA M
Citation
S. Komorskylovric et al., EFFECT OF IONIC-STRENGTH ON BI(III) REDUCTION FROM PERCHLORATE MEDIUM, Journal of the Electrochemical Society, 140(7), 1993, pp. 1851-1853
Citations number
37
Categorie Soggetti
Electrochemistry
Journal title
Journal of the Electrochemical Society → ACNP
ISSN journal
00134651
Volume
140
Issue
7
Year of publication
1993
Pages
1851 - 1853
Database
ISI
SICI code
0013-4651(1993)140:7<1851:EOIOBR>2.0.ZU;2-I
Abstract
In highly concentrated HClO4 (>8M) and acidic NaClO4 (>7M) solutions t he reduction of Bi(III) at a mercury electrode becomes fast and revers ible. The redox kinetics depends on the electrolyte concentration and only indirectly on the water activity. It is proposed that the cations of the supporting electrolyte participate in the partial dehydration process which follows the first charge-transfer step. Hydration number s of Bi3+ are 8.2 in NaClO4 and 6.9 in HClO4 solutions.