Corrosion Protection of Expired Perindopril and Expired Alprazolam Drug in Carbon Steel in the 3% NaCl Solution

Author(s): Narasimha Raghavendra*, Leena V Hublikar, S. M. Patil, Pooja J Ganiger, Anjali S Bhinge and Soumya Chitnis

Abstract: Present study aimed at the application of expired Perindopril and Alprazolam drug as a corrosion inhibitor for the carbon steel in the 3 % NaCl solution. Two techniques (weight loss and atomic absorption spectroscopy) used to evaluate the corrosion inhibition mechanism. Weight loss technique revealed that, the corrosion inhibition property of expired Perindopril and expired Alprazolam drug is mainly depends upon the concentration of the expired species and solution temperature. The atomic absorption spectroscopy (AAS) technique fully supports the results of weight loss studies. Among the expired Perindopril and Alprazolam drug species, expired Perindopril drug exhibit the superior corrosion inhibition property on the carbon steel in the 3 % NaCl solution.

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