CYCLIC VOLTAMMETRIC STUDY OF ANTHRAQUINONE-2-SULFONATE IN THE PRESENCE OF ACID-YELLOW-9

Authors
BECHTOLD T GUTMANN R BURTSCHER E BOBLETER O
Citation
T. Bechtold et al., CYCLIC VOLTAMMETRIC STUDY OF ANTHRAQUINONE-2-SULFONATE IN THE PRESENCE OF ACID-YELLOW-9, Electrochimica acta, 42(23-24), 1997, pp. 3483-3487
Citations number
19
Categorie Soggetti
Electrochemistry
Journal title
Electrochimica acta → ACNP
ISSN journal
00134686
Volume
42
Issue
23-24
Year of publication
1997
Pages
3483 - 3487
Database
ISI
SICI code
0013-4686(1997)42:23-24<3483:CVSOAI>2.0.ZU;2-V
Abstract
The electrochemical reduction of anthraquinone-2-sulfonate (AQS) has b een examined in the presence of an azoic dyestuff (Acid Yellow 9, 4-am ino-1,1'-azobenzene-3,4'-disulfonic acid, sodium salt) in alkaline sol ution. The dianion of the anthrahydroquinone-2-sulfonate (AQS(2-)) for med by cathodic reduction reacts with Acid Yellow 9 to regenerate AQS and yields the reduced dyestuff. The catalytic currents generated due to the chemical reaction between the AQS(2-) and the dyestuff have bee n used to estimate the rate constant of the reaction. (C) 1997 Elsevie r Science Ltd.