Trisodium hydrogen diphosphate is widely used in the food industry as a leavening agent in baking powders, reacting with basic components like sodium bicarbonate to produce carbon dioxide and help baked goods rise. It also acts as a buffering agent, stabilizing pH levels in processed foods like cheeses, meats, and canned products. It is used as an additive to improve texture and stability, for example in processed meats, sausages, and frozen seafood, helping retain moisture and prevent water loss. In detergents and cleaning agents, it serves as a water softener, preventing the buildup of mineral deposits and aiding in stain removal. 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.