Potassium Nitrate

*Purity (%)：Min 99.8
*K2O (%)：Min 46.0
*N content (%)：Min 13.5
*Cl- (%)：Max 0.01
*SO4 (%)：Max 0.01
*Insoluble matter in water (%)：Max 0.01
*Fe (%)：Max 0.003
*Hygroscopicity (%)：Max 0.25
*H2O (%)：Max 0.1