From Table 3, it is observed that the Eco~ values of zinc
and its alloys in the presence of 15 wt.% sodium citrate are
more negative than the corresponding OCP values. Further,
the cathodic Tafel slopes (b~) are less than the anodic counterparts
(b~) for all the systems. Thus, it may be concluded
that the overall kinetics of corrosion of zinc and its alloys in
this medium are under anodic control.