Effect of sodium dioctylsulphosuccinate on the dropping mercury electrode capacity

Abstract

Sodium dioctylsulphosuccinate (Manoxol OT) is shown to exhibit in the tensammetric curve, a hump from -0.7 to -1.0 V and a desorption peak at -1.35V. It has been shown that the hump is caused by dissolved oxygen. Effect of (a) concentration of Manaxol OT and (b) the magnitude of the a.c. ripple on the tensammetric curves has been studied and the results discussed. The D.C. polarograms indicate two waves, the first being caused by oxygen and second mainly by desorption, although the latter is also enhanced by the presence of oxygen.