... food grade , Assay:99.0 %min , P2O5: 53.0 %min , N:20.8 %min , PH : 7.8-8.2 Diammonium phosphate (DAP) Chemical formula: (NH4 ... .150.15Heavy metals,as Pb. % max------0.001Arsenic,as As. % max------0.0003Fluorde,as F. % max------0.002PH7.8-8.27.8-8 ... , Net weight 25kg/50kg/1000kg,Store at ventilated dry place. Diammonium Phosphate (DAP) diammonium hydrogen phosphate