Abstract

The new inorganic compound AgSrCu4.5(PO4)6 (BP) was synthesized and characterized by XRD, SEM, and EDS and was finally examined for restraint the deterioration of C35E steel in a hostile medium of hydrochloric acid. During this investigation, electrochemical techniques and surface examination were performed. This new phosphate acts as a cathodic or anodic inhibitor with the consequence of temperature. With increasing concentration and temperature, the corrosion rate (icorr) drops. The frequency distribution of the capacitance was revealed by impedance experimental data, which was simulated as a constant phase element. UV–vis diffuse reflectance Spectroscopy and (SEM-EDS) analysis showed that the inhibition induced by the establishment of a deposited layer rich in Ag and Cu, that reinforces the confrontation of the C35E steel to damage.

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