Trisodium hydrogen diphosphate is widely used in the food industry as a leavening agent, helping baked goods rise by producing carbon dioxide when combined with acidic components. It also acts as a buffering agent, stabilizing pH levels in processed foods like cheeses, meats, and canned products. In detergents and cleaning agents, it serves as a water softener, preventing the buildup of mineral deposits. Additionally, it is utilized in industrial applications for corrosion inhibition in water treatment systems. Its ability to sequester metal ions makes it effective in preventing discoloration and maintaining product quality in various formulations.