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Mannich Bases Derived from Melamine, Formaldehyde Alkanoleamines as Novel Corrosion Inhibitors for Mild Steel in Hydrochloric Acid Medium

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Figure

Figure 1. Structure and names of both Mannich bases
Figure 2.                     (a) Inhibition efficiency of inhibitors at different concentrations (b) Inhibition efficiency of inhibitors at different temperatures (c) Inhibition efficiency of inhibitors at different immersion times
Table 1. Corrosion rate (CR) and inhibition efficiency ( %) for mild steel in 1M HCl in absence and in presence of different concentrations of inhibitors from weight loss measurements at 308 K
Figure 3.                                                                                                                                                         Langmuir adsorption isotherm
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