Evaluation of Corrosion Inhibition of Mild Steel in 1 M Hydrochloric Acid Solution by Mollugo cerviana

Table 1

The electrochemical polarization parameters for mild steel in 1 M HCl solution in the absence and in the presence of M. cerviana extract at different concentrations.

Concentration of the inhibitor (mg/L)	𝑏𝑎 (mV/dec)	𝑏𝑐 (mV/dec)	𝐸corr (mV)	𝐼corr (mA/cm^2)	% IE	𝜃
Blank (HCl)	77.98	43.26	−456.93	351.23	—	—
25	68.27	51.43	−439.01	0.07	77.97	0.78
100	77.21	57.12	−447.21	0.05	83.07	0.83
250	92.34	60.40	−441.16	0.04	83.09	0.83
500	125.14	84.56	−436.82	0.03	89.03	0.89
1000	95.6	65.53	−441.13	0.04	88.09	0.88