Electrochemical Impedance Spectroscopy and Potentiodynamic Polarization Analysis on Anticorrosive Activity of Thiophene-2-Carbaldehyde Derivative in Acid Medium

Table 2

Electrochemical impedance parameters of MS specimens in 1 M HCl in the absence and presence of T2CTRY.

Conc. (mM)	𝑅ct (Ωcm^2)	CPE (𝜇Fcm^−2)	𝜂EIS%
0	16.4	95.8	—
0.2	109	82.3	84.9
0.4	142	77.0	88.5
0.6	211	75.5	92.2
0.8	286	68.3	94.3
1.0	427	64.6	96.2