Statistical Optimization of Ecofriendly Corrosion Inhibitor for Mild Steel in Acidic Medium

Abstract

This current study outlines the corrosion inhibitory efficacy of Aglaonema commutatum of mild steel in 1N hydrochloric acid (HCl). The
corrosion rates were evaluated using the weight loss method and temperature studies The leaves of Aglaonema commutatum demonstarted a
maximum inhibition efficiency of 98% at varying concentrations. Phytochemical screening revealed the presence of bioactive compounds
which may be accounted to contribute for corrosion resistance. Infrared (IR) and UV-Vis spectroscopy confirmed the presence of functional
groups that are capable of forming protective layers on the metal surface. Surface analysis using Scanning Electron Microscopy (SEM)
revealed reduced surface corrosion and the formation of a protective film. The inhibition efficiency increased with higher extract
concentrations but slightly declined at elevated temperatures, indicating temperature sensitivity. A mathematical correlation was drawn by
correlating the linear regression pertaining to the inhibitory effect of Aglaonema commutatum of mild steel in 1N hydrochloric acid (HCl).
Thus, Aglaonema commutatum offers itself as an eco-friendly inhibitor, offering a sustainable alternative to conventional chemical inhibitors
with promising industrial applications.