... Phosphate fertilizer 1,Valid P2O5:16.0% 2,Calcium:19-25% 3,Free Phosphoric acid:4.50% 4,Moisture:3.0% 16% Single Super Phosphate fertilizer1 ... )7, HS Code:310510908, CAS No:10031-30-89, Valid P2O5:16.0 pct min 10, Free Phosphoric acid:4.50 pct max 11, Calcium ... , Sulphur:8.2% 14, Free Acid:1.4% 15, Fe2O3:0.98% 16, A12O3:1.18% 17, R2O3:2.2% 18, Fluorine ...