Used as a corrosion inhibitor in industrial water treatment systems, particularly in cooling water and boiler applications. It protects metal surfaces by forming a protective layer that prevents oxidation and sulfide stress cracking. Also employed in oil and gas production systems to mitigate sour corrosion caused by hydrogen sulfide. Effective in low concentrations and compatible with various treatment chemistries, making it suitable for use in closed-loop systems and metalworking fluids.