... Powder 2.SGS quality report before shipment 3.Owning Factory Tech Grade Sodium Tripolyphosphate 94.0%,STPP Properties: White powder, Easily ... Thermal process combined to improve product purity and save energy. Tech index: IndexIndustrial Grade Assay Na5P3O10 % ≥94P2 O 5 % ≥57Water Insoluble ... : keep in dry, cool, ventilated place.Part of our equipment: Tech Grade Sodium Tripolyphosphate 94.0%,STPP