Sodium polyphosphate is widely used as a water softener in detergents and cleaning products, effectively binding to metal ions like calcium and magnesium to prevent scale formation. In the food industry, it serves as an emulsifier and preservative, enhancing texture and shelf life in processed meats, seafood, and dairy products. It is also utilized in water treatment processes to inhibit corrosion and control scale in pipelines and boilers. Additionally, sodium polyphosphate finds applications in ceramics and metallurgy as a deflocculant, improving the flow properties of slurries and suspensions. Its ability to sequester minerals makes it valuable in various industrial and consumer applications.