Chemical Analysis Component Range Typical Main content 99%min 99% P2O5 53%min 53% NasNH4 20.8%min 21.0% Moisture 0.2%max 0.2% Insoluble 0.1%max 0.1% As 0.0003%max 0.0003% Pb 0.001%max 0.001% F 0.002%max 0.002% Note: Please contact us get the details COA of Diammonium phosphate (DAP 21-53-0) Applications Fertilizer Diammonium phosphate(DAP)is a widely used as a source of P and N fertilizer which Excellent for low pH or alkaline soils Non Agricultural Uses (1)Used as afire retardant. (2)Used as a yeast nutrient inwinemakingand brewingmead. (3)Used as an additive in some brands of cigarettes purportedly as anicotineenhancer. (4)Used as aFluxfor soldering tin, copper, zinc and brass. (5)Controlprecipitationof alkali-soluble and acid-insoluble colloidal dyes onwool.