STPP is a solid inorganic compound used in a large variety of household cleaning 1)STPP tech grade Assay:95%min,P2O5:57%min,PH:9.2-10,Fe:0.015%max,Water insoluble:0.1%max.Packing:25kgs plastic woven bags, 22mts/20'fcl2)STPP tech grade food gradeMolecular formula: Na5P3O10, Molecular weight: 367.86Assay:95%min, P2O5:57%min,PH:9.5-10.0, Fe:0.01%max,Water insoluble:0.05%max.Cl: 0.003%max, Heavy ...