Anticorrosive Effect of Halogenated Aniline Enaminoesters on Carbon Steel in HCl

Table 8

Values of parameters obtained from linearized Langmuir adsorption isotherm for the inhibitors on AISI 1020 carbon steel in 1.0 mol L^-1 HCl using the electronic impedance spectroscopic data.

Inhibitor	Correlation coefficient ()	Slope		(L Mol^-1)	(kJ Mol^-1)
F-EN	0.99999	1.17	0.85	2.00 × 10^4	-35.06
Cl-EN	0.99996	1.19	0.84	1.16 × 10^4	-33.69
Br-EN	0.99974	1.25	0.80	6.83 × 10^3	-32.36
H-EN	0.99995	1.26	0.80	1.06 × 10^4	-33.46