Features: 1) (NH4)2HPO4,content,%:≥ 99.0 2) P2O5,%:≥53.0 3) N,%:≥21 4) H2O, %:≤0.1 5) F, ppm:≤5 6) As, ppm:≤5 7) Heavy metals (as Pb ),ppm:≤8 8) Water- insoluble matter %:≤0.10Usage: Used as high efficient compound fertilizer, powder extinguisher, fire retardant of printing, ceramic, waste water bio-treatment, feed additive.Package, transportation and storage 1) 25kg/bag (polyethylene inner bag contained in white plastic knitted bag)1000kg/bag (polyethylene inner bag contained in white plastic knitted bag) 2) Not a hazardous substance; can be shipped as regular product 3) Store in dry place