... 16.0% 2,Calcium:19-25% 3,Free Phosphoric acid:4.50% 4,Moisture:3.0% soluble fertilizerSingle Super Phosphate fertilizer1, ... , Standard:ZBG21003-873, Molecular formula:Ca(H20P4)2.H2O 4, Molecular Weight:234.05 5, Density:2.22g/cm ... , Valid P2O5:16.0 pct min 10, Free Phosphoric acid:4.50 pct max 11, Calcium:19-25%12, Moisture: ... .0 pct max 13, Sulphur:8.2% 14, Free Acid:1.4% 15, Fe2O3:0.98% 16, A12O3:1.18% ...