... Min K2O: 46%Min Nitrogen: 13.5%Min SGS Certificate. High quality and Prompt shipment. Potassium Nitrate Purity: 99.8%Min K2O: 46%Min Nitrogen: 13.5%Min ... ≥99.897.5Moisture% ≤0.100.100.30% ≤0.10 Chloride(as Cl- )% ≤0.010.020.10% ≤0.01- ... ( in nitrate ) % ≥ 13.5Particle Size0.2-2.5 , 1-3 , 2-5 , 0.2-5MM0.2-2.5 ... , 1-3 , 2-5 , 0.2-5 Potassium Nitrate 99.4%min ,nitrate de potassium fertilizer(46-0-13. ...