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

Table 2

Potentiodynamic polarization parameters for the corrosion inhibition of mild steel in 1 mol L⁻¹ HCl in the presence and absence of GAI.

S. number	Concentration (ppm)	(mA cm^−2)	(mV/SCE)	(mV dec^−1)	(mV dec^−1)	IE (%)
1	Blank	1.21	−499.38	94.4	137.2	—
2	20	1.08	−503.2	79	124	10.5
3	40	0.595	−486.9	72	110	71.4
4	60	0.10	−514.7	68	119	81.7