Aqueous Extract of Kalmegh (<i>Andrographis paniculata</i>) Leaves as Green Inhibitor for Mild Steel in Hydrochloric Acid Solution

<table>Nyquist plots in absence and presence of different concentrations of extract in1 M HCl.</table>

International Journal of Corrosion

Figure 3: Aqueous Extract of Kalmegh (<i>Andrographis paniculata</i>) Leaves as Green Inhibitor for Mild Steel in Hydrochloric Acid Solution 