Abstract
The anti-corrosion property of expired Abacavir Sulfate drug on the mild steel (MS) in the 3 M HCl solution was carried out with the help of weight loss, atomic absorption spectroscopy, Tafel plot, impedance spectroscopy, and scanning electron microscopy studies. The weight loss studies show that, protection property enhances with a rise in the amounts of expired Abacavir Sulfate drug and the maximum of protection efficiency observed at 0.4 g/L of expired Abacavir Sulfate drug. The effect of four different amounts of expired Abacavir Sulfate drug on the MS in the 3 M HCl solution was studied by atomic absorption spectroscopy technique. Mixed MS corrosion inhibition property of expired Abacavir Sulfate drug was confirmed by Tafel plot studies. Nyquist plot studies show that, charge transfer resistance (R ct) values are directly proportional to the expired Abacavir Sulfate drug. Scanning electron microscopy results shows that, smooth MS surface in 3 M HCl solution is due to the presence of 0. 4 mg/L of expired Abacavir Sulfate drug.
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