
Sodium tripolyphosphate ,STPP, abbreviated as STPP, is a white crystalline powder that is highly soluble in water. Its aqueous solution is weakly alkaline and it has multiple core functions such as chelation, dispersion, water softening, washing assistance, and water retention. It is an important raw material for industries such as detergents, food processing, water treatment, and ceramics
Sodium tripolyphosphate can form stable soluble chelates with metal ions such as calcium, magnesium and iron in water, effectively removing calcium and magnesium ions from hard water and preventing the formation of scale. Meanwhile, in food processing, it can chelate metal ions to avoid their impact on the color, flavor and stability of food.
It can disperse dirt particles and tiny impurities in food raw materials in water to prevent their re-deposition. In detergent formulations, it can enhance the decontamination ability of surfactants, emulsify grease stains, and improve the cleaning effect. In ceramic production, it can disperse the particles of ceramic raw materials and improve the fluidity of the slurry.


In the fields of chelation, water softening, washing assistance and water retention, the purity stability, efficacy compatibility and comprehensive cost performance of sodium tripolyphosphate directly determine the production application effect and cost input. Choosing our sodium tripolyphosphate products means choosing a high-quality, full-category, one-stop professional solution to help multiple industries such as detergents, food processing, water treatment, and ceramic printing and dyeing develop efficiently!We select high-purity phosphate rock and soda ash as raw materials, adopt an advanced high-temperature polymerization – wet refining integrated process, and implement intelligent production control throughout the process. The product quality strictly complies with relevant national standards. The main content of food-grade sodium tripolyphosphate is ≥95%, and the content of heavy metals, fluorides and other impurities is far below the national standard limit. It has no odor and the water solution after dissolution is clear, fully meeting the safety requirements of food additives. The main content of industrial-grade sodium tripolyphosphate is stable at ≥94%, with a high chelating value and a remarkable effect on softening water and assisting in washing. It is suitable for the strict requirements of scenarios such as detergents and water treatment. Each batch of products undergoes three strict checks: initial inspection of raw materials, online monitoring by the central control system, and third-party re-inspection of finished products, ensuring stable and reliable quality. The performance fluctuation between batches is no more than 3%