Eco-Friendly Corrosion Inhibition of Pipeline Steel Using Brassica oleracea

Table 4

Potentiodynamic polarization parameters for pipeline steel in 0.5 M H₂SO₄ with and without different concentrations of Brassica oleracea extract at 323 K.

Concentration (g/L)	Blank	0.01	0.1	1.0
Eff. ()		98.79	99.19	99.02
(A/cm^2)	4.56 e^+4	5.54 e^+2	3.70 e^+2	4.46 e^+2
(mV dec^−1)	569.60	161.53	381.71	130.81
(mV dec^−1)	511.27	96.95	450.92	35.33
(mV versus SCE)	−426.28	−501.28	−490.18	−463.35