Barium diphenylaminesulfonate is widely used as a corrosion inhibitor in various industrial applications. It is particularly effective in protecting metal surfaces in cooling water systems, boilers, and pipelines by forming a protective layer that prevents oxidation and corrosion. Additionally, it is utilized in the formulation of lubricants and greases to enhance their anti-wear and anti-corrosion properties. In the automotive industry, it is incorporated into engine oils and hydraulic fluids to extend the lifespan of metal components. Its ability to stabilize and protect metals under high-temperature and high-pressure conditions makes it a valuable additive in industrial and automotive maintenance.