... report before shipment 3.Fast delivery 4.Tech Grade STPP 94.0%,Sodium Tripolyphosphate 1.Product Properties: White powder, Easily soluble ... purity and save energy. 3.Tech index: IndexIndustrial Grade Assay Na5P3O10 % ≥94P2 O 5 % ≥57Water Insoluble Matter % ≤0.1Iron(Fe) % ≤0 ... in dry, cool, ventilated place. Part of our equipment: STPP 94.0%,Sodium Tripolyphosphate