Tech grade: Main content:98% min Phosphorus pentoxide:61% min Nitrogen:11.8% min Ph value of 1% solution:4.4-4.8 Moisture:0.2% max Water insoluble:0.1% max We also provide food grade map Packing and storage: In 25kg, 50kg, 1000kg net bags, store at a cool, dry and well ventilated place.
