Sodium Tripolyphosphate (STPP) is a highly water-soluble inorganic compound primarily used as a sequestering agent, dispersing agent, and water softener. It is commonly used in detergents, cleaning agents, and water treatment systems to improve the effectiveness of surfactants, soften hard water, and prevent scaling. STPP is also used in the food industry as an additive to enhance the texture and moisture retention of processed foods, especially seafood, meats, and poultry.