Sodium tripolyphosphate CAS#7758-29-4

Products Description of Sodium tripolyphosphate CAS#7758-29-4

Sodium tripolyphosphate (STPP, Na₅P₃O₁₀, CAS 7758-29-4)‌ is a white crystalline phosphate compound widely used as a ‌builder in detergents‌ (accounting for 50% of global consumption), ‌water softener‌, and ‌food preservative‌ (E451). Its high chelating capacity for metal ions (e.g., Ca²⁺/Mg²⁺) enhances cleaning efficiency by preventing scale formation, while in food processing, it retains moisture in seafood/meats. STPP exhibits three crystalline forms (Phase I/II/hexahydrate), with Phase II being the most industrially stable. 

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Product Application of  Sodium tripolyphosphate CAS#7758-29-4

Sodium tripolyphosphate is used in water softening, heavy-duty fabric washing, automatic dish washing, drilling fluid cleaning and liquid cattle feed supplements. It is also used as a peptizing, emulsifying, dispersing agent and as a hydrogen peroxide solution stabilizer. It acts as a preservative for seafood, meats, poultry, and animal feeds. It finds application as a polyanion crosslinker in polysaccharide based drug delivery. Further, it is used as a sealant for leaking farm ponds and a calcium and magnesium chelating agent. In addition to this, it is used in ceramics, leather tanning, flame retardants, paper pulping, paper coatings, textile processing, ore flotation, anticorrosion pigments and rubber production.

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Inventory 2-3 working days New production 7-10 working days