Research Article

A Study of N,N-Diethylammonium O,O′-Di(p-methoxyphenyl)dithiophosphate as New Corrosion Inhibitor for Carbon Steel in Hydrochloric Acid Solution

Figure 9

SEM micrographs for the carbon steel surface: before corrosion (a), after immersion in 0.5 M HCl without EAPP (b), and with 160 mg L−1 EAPP (c) at 300 K for 2 h.
(a)
(b)
(c)