The polarization parameters for the corrosion of zinc and
its alloys in 10 M NaOH with 15 wt.% sodium citrate and 0.3
wt.% CaO are given in Table 4. Here, the E~o~ values are
more negative than the corresponding OCP values for all the
systems. Moreover, the be values for all the systems are again
less than the b~ values. As in the situation above, the overall
kinetics of corrosion of zinc and its alloys in this media are
under anodic control.