Used as a corrosion inhibitor in cooling systems and antifreeze formulations, particularly for copper and its alloys. It protects metal surfaces by forming a protective film that prevents oxidation and degradation. Commonly found in automotive radiators, heating systems, and industrial water treatment processes. Also serves as an additive in metalworking fluids and cleaning products to enhance equipment longevity and prevent metal degradation. Additionally, it functions as a stabilizer in some photographic and polymer systems due to its ability to chelate metal ions.