www.foodchem.com sodium tripolyphosphate ITEMTEST RESULTSAssay(as Na5P3O10)≥97.5%P2O557.3%Fluoride<10%As<1%Water insoluble substance<0.05%Higher polyphosphates<1%PH9.8%Heavy Metals(as Pb)<10%Lead<4%Hg≤1%Ca≤1%Loss on Drying<0.1%Bule density<1% Related products: Agar agar , Carrageenan, Konjac Gum , Pectin , Sodium Alginate, Xanthan Gum.