Research Article

Anticorrosive Effect of Halogenated Aniline Enaminoesters on Carbon Steel in HCl

Table 7

Values of , , and in the corrosion process of AISI 1020 carbon steel in 1.0 mol L-1 HCl, in the absence and presence of inhibitors.

InhibitorCorrelation coefficient ()Slope (kJ Mol-1) (kJ Mol-1) (J Mol-1 K-1)

Blank0.9968414.4735.5633.47-131.67
F-EN0.9913623.5863.6861.82-55.26
Cl-EN0.9945822.5559.7757.95-66.27
Br-EN0.9961423.8563.6961.81-53.02
H-EN0.9972022.0859.3061.40-50.28