Chemicals - Sodium Tripolyphosphate (STPP)


Hubei Xingfa, Prayon


China, Belgium


25 Kg Bag

Grade Standard

Technical Grade

General Description

Sodium tripolyphosphate (STPP) is an organic compound which is ideal for decreasing the viscosity of glazes, chelating hard metal ions, and also has an excellent degumming effect in ceramic production. It is typically supplied as a white powder or granular product which must be kept dry in a well-ventilated place, away from extremes of heat and cold. The primary use of STPP in ceramic production is through its ability to lower the viscosity of a mass or slurry and in doing so improve the fluidity of a desired material. This can reduce costs, as any reduction in water content helps to lower energy consumption in a ball mill or spray drying tower (spray column).


Ceramic Industry, Detergents and Cleaning Products, Water Treatment, Industrial Applications


Items Specifications Results
Appearance White Powder White Powder
NA5P3O10 94% Min 94%
P2O5 56.50% 57%
Water Insoluble 0.10% Max 0.06%
Fe 100ppm Max 56
Whiteness 90% Min 90.00%
PH Value 9.2-10 9.68
Bulk Density 0.70-0.85 g/ml 0.83 g/ml
Phase I 10-30% 25

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