sodium tripolyphosphate Product Name: Sodium Tripoly Phosphate (STPP) Grade: Food Grade and Technical grade

sodium tripolyphosphateDetailed Product Description

Chemical formula: Na5P3O10 

Molecular weight: 367.86

Properties:White microdot powder with luster, melting point at 622, easily soluble in water, with remarkable chelating ability to some metal ions such as Ca2+, Mg2+, can soften hard water, change suspension into solution, slightly alkaline, without causticity

Please find the detailed product information as follows:

Industrial grade:

Main content : 94.0%min         P2O5 : 57.0%min         Water insoluble: 0.1%max

Iron(Fe): 0.015%max            PH of 1% water solution: 9.2-10.0 

Food grade 

Main content : 94.0%min         P2O5 : 57.0%min         Water insoluble: 0.05%max

Iron(Fe): 0.01%max             PH of 1% water solution: 9.5-10.0

Heavy metal, as Pb: 0.001%max  Arseni (As ): 0.0003%max

 Fluoride ( F): 0.003%max        Chloride ( Cl): 0.025%max

 Packing:25kg/bag

sodium tripolyphosphate