Please use this identifier to cite or link to this item:
http://repository.aaup.edu/jspui/handle/123456789/733
Title: | Polarography of salicylidenebenzohydrazide in solutions of varying pH at a dropping-mercury electrode: effect of hydrogen bonding |
Authors: | y..m. temerk i.m. issa ali z. abu zuhri |
Issue Date: | 1979 |
Publisher: | Journal of the Chemical Society, Perkin Transactions 2 |
Abstract: | The polarographic behaviour of salicylidenebenzohydrazide (SBH) at a dropping-mercury electrode was studied in aqueous Britton–Robinson buffers containing 40% ethanol. The polarograms consist each of one wave in acidic medium. The height of the wave decreases and its E½ shifts to more negative potentials with increasing pH until it diminishes completely at pH > 10.7. At pH values > 7.2 a second wave appears, the height of which increases with pH and becomes developed at pH values > 10.7. In acid solutions 4-electrons are consumed in the reduction of C[double bond, length half m-dash]N. The second wave is attributed to the reduction of salicylaldehyde which is formed from the hydrolysis of the hydrazide. The effect of pH on the limiting current and E½ as well as the reduction mechanism are discussed. The kinetic parameters of the electrode reaction are also determined. |
URI: | http://repository.aaup.edu/jspui/handle/123456789/733 |
Appears in Collections: | Faculty & Staff Scientific Research publications |
Files in This Item:
There are no files associated with this item.
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.
Admin Tools