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Sodium tripolyphosphate CAS#7758-29-4

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Sodium tripolyphosphate CAS#7758-29-4
Sodium tripolyphosphate CAS 7758-29-4 is a versatile detergent builder and food additive E451 with strong chelating and water-softening performance.

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Product Description

Excellent Chelating Ability:Effectively binds Ca²⁺ and Mg²⁺ ions, preventing scale formation and significantly improving detergent cleaning performance.


Highly Efficient Detergent Builder:Widely used as a core builder in detergents, accounting for about 50% of global consumption and enhancing overall washing efficiency.


Versatile Food-Grade Additive:Functions as an approved food preservative (E451), helping retain moisture and improve texture in seafood and meat products.


Stable Multiple Crystalline Forms:Available in Phase I, Phase II, and hexahydrate forms, with Phase II offering superior industrial stability for consistent processing and storage.

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

Sodium Tripolyphosphate (STPP, Na₅P₃O₁₀) is a white crystalline phosphate. It is widely used as a high-efficiency builder in detergents, accounting for nearly half of global consumption, and also serves as an excellent water softener and approved food additive E451.


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

Sodium Tripolyphosphate is widely used in water softening, heavy-duty laundry detergents, automatic dishwashing products, drilling fluid cleaning and liquid livestock feed supplements. It acts as an excellent peptizer, emulsifier and dispersant, and also serves as a stabilizer for hydrogen peroxide solutions.

In the food industry, it preserves seafood, meat and poultry by improving freshness and moisture retention. It is also used as a polyanion cross-linker in polysaccharide drug delivery systems and a sealant for leakage repair of farm ponds.



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