PIT is widely used as a corrosion inhibitor in industrial water treatment systems. It is effective in protecting metal surfaces, especially copper and its alloys, from oxidation and degradation caused by exposure to water and oxygen. Due to its strong film-forming ability, PIT forms a protective layer on metal surfaces, preventing direct contact with corrosive agents. It is commonly applied in cooling water systems, heat exchangers, and pipelines where long-term corrosion resistance is critical. Additionally, PIT is utilized in combination with other inhibitors to enhance overall performance in closed-loop systems. Its stability under high temperature and varying pH conditions makes it suitable for use in both HVAC systems and industrial processing equipment.