Anticorrosion Activity of 8-Quinoline Sulphonyl Chloride on Mild Steel in 1 M HCl Solution

Figure 6

SEM images of the surface of mild steel: (a) polished mild steel, (b) after immersion in 1 M HCl solution in absence of inhibitor, and (c) after immersion in 1 M HCl solution in presence of optimum concentration of inhibitor.

(a)

(b)

(c)