... maki (94%,96%,97%) Sodium Tripolyphosphate stpp 1, Properties: White microdot powder with luster, melting point at 622 o C, easily soluble ... in water, with remarkable chelating ability to some metal ions such as Ca ... (As Pb) (%):NFluoride(F) (%):N 4, Packing: Plastic-woven sack with polythene inner bag; Net weight 25kg, 50kg or 1000kg; Keep ...