Research Article

Adsorption and Corrosion Inhibition Characteristics of Some Nicotinamide Derivatives on Mild Steel in Hydrochloric Acid Solution

Table 4

Polarization parameters and corresponding inhibition efficiency (IE) for the corrosion of the MS in 0.5 M HCl without and with various concentrations of IMN and TMNat 30°C.

Inhibitor
(ppm)(mV)( A cm−2)(%)

Blank06131061

IMN200605293.872.3
300592230.178.3
400586162.484.7
500511160.584.9

TMN200531187.182.4
300522121.288.6
40051586.4991.8
50050356.8994.6