Effect of Caffeine-Zn2+ System in Preventing Corrosion of Carbon Steel in Well Water
Figure 5
(a) Carbon steel in well water (Blank; Magnification-×500), (b) carbon steel in well water caffeine (200 ppm)-Zn2+ (50 ppm) Magnification-×500, and (c) carbon steel in well water caffeine (200 ppm)-Zn2+ (50 ppm)-malic acid (25 ppm) Magnification-×500.
