... 3,High quality and competitive price 4,Quickly delivery 1.STPP, Sodium Tripolyphosphate 2.good quality, widely used in detergent, good performence 3 ... .STPP Sodium TripolyphosphatePropertiesWhite powder, surface density: 0.35-0.9g/cm3,free ... ,ventilative and clean warehouse;kept away from moisture and hot. STPP Food grade