Eco-Friendly Corrosion Inhibition of Pipeline Steel Using Brassica oleracea

Table 6

Impedance parameters for pipe steel in 0.5 M H₂SO₄ with and without various concentrations of BO extract.

Conc. (g/L)	Rs (Ωcm^2)	(Ωcm^2)	(Ωcm^2)	CPE (S-/cm^2)		(Hcm^2)	%η
Blank	2.37	5.29	16.3	0.00028	0.97	6.97	—
1.0	2.96	38.93	78.88	0.00019	0.88	34.46	86.64
0.1	2.97	265.20	1283	0.000045	0.92	3372	98.04
0.01	2.98	102	1724	0.00012	0.93	7193	94.90