... powder or granula 1. Industrial Grade 94% 2.Appearance: White Powder 3.ISO9001: 2000 4.Min order quantity: 5mt 5.For detergent ... , soap Specifications Industrial Grade Food Grade Main content%≥ 94.0 94.0 P2O5%≥ 57 ... softening, red and black water control, cathoclic corrosion in hibiter. 94%min STPP ( manufacturer)