Inhibition Effect of Glycerol on the Corrosion of Copper in NaCl Solutions at Different pH Values

Figure 5

Nyquist plot for Cu in NaCl (0.5 M) at four glycerol concentrations as a function of three pH levels: (a) pH 4, (b) pH 7, and (c) pH 10.

(a)

(b)

(c)