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