Corrosion Inhibition of Mild Steel in 1 mol L⁻¹ HCl Using Gum Exudates of Azadirachta indica

Table 3

AC impedance parameters for mild steel in 1 mol L⁻¹ HCl in the presence and absence of GAI.

S. number	Concentration 10^−3 g L^−1	(Ω cm^−2)	(μF cm^−2)	IE (%)
1	Blank	9.2	0.00461	—
2	20	12.5	0.00253	25.9
3	40	14.8	0.00184	37.8
4	60	84.6	0.00006	67.1