Trisodium phosphate dodecahydrate

Trisodium phosphate dodecahydrate (TSP, CAS 10101-89-0) is an inorganic sodium phosphate salt supplied as white crystalline solid. It carries no E-code designation and is classified under HS code 28352300. The hydrated form provides a controlled release of phosphate ions in aqueous systems, making it suitable for precision-dosed industrial processes.

In water treatment, TSP functions as a sequestrant by binding calcium and magnesium ions to prevent scale formation in boiler systems and cooling circuits. In textile and paper processing, it serves as an alkaline buffer, raising and stabilising pH during scouring and bleaching operations. Its phosphate content also contributes flame-retardant properties in coatings and construction materials by promoting char formation.

TSP dodecahydrate is available in food-grade (FCC) and technical grades, with REACH compliance documentation supplied on request. It is handled under standard industrial chemical regulations across EU markets. Packaging is typically offered in 25 kg bags or bulk quantities depending on application requirements.