DAP, Ammonium Hydrogen Phosphate Known as Diammonium Phosphate (NH4)2HPO4, 21-53-0, Item Specifications AppearanceWhite Crystals Main Content99%; Nitrogen (N)21%; P2O553%; Water Insolubleâ?¤0.1%; Moistureâ?¤0.3%; PH Value7.8-8.5;Packing25kg plastic woven bag