Potassium Nitrate Fertilizer

specifications we can supply potassium nitrate fertilizer with good quality and competitive price. we can supply potassium nitrate fertlizer with good quality and competitice price. specifications: 1) purity (%): min. 99.8 2) k2o (%): min. 46.0 3) n content (%): min. 13.5 4) cl- (%): max. 0.01 5) so4 (%): max. 0.01 6) insoluble matter in water (%): max. 0.01 7) fe (%): max. 0.003 8) hygroscopicity (%): max. 0.25 9) h2o (%): max.