Pomegranate (Punica granatum) Peel Extract as a Green Corrosion Inhibitor for Mild Steel in Hydrochloric Acid Solution

Table 2

The corrosion parameters obtained from polarization plots of mild steel in blank and inhibited HCl solution.

Inhibitor concentration (v/v %)	(mV)	(Ω cm^2)	(mV/dec)	(mV/dec)	(μA cm^−2)	IE%
0.000	−0.548	6.052	0.0103	0.0103	4.1440	—
0.625	−0.550	18.70	0.0790	0.0127	1.1300	72
0.125	−0.550	42.240	0.0760	0.0120	0.047	88
0.250	−0.553	131.40	0.0710	0.0107	0.0414	97
0.500	−0.573	400.05	0.0880	0.0126	0.0056	98
1.000	−0.553	400.80	0.0730	0.0102	0.0038	99