English HG2919-2000 FCC1996 Assay(NaH2PO4 ),% 98.0-103.0 98.0-103.0 pH-value (10g/L solution) 4.2-4.6 -- Insoluble in water, í_% 0.2 0.2 Heavy Metal(Pb), í_% 0.001 10mg/kg As, í_% 0.0003 3mg/kg Chlorides (F), í_% 0.005 0.005 Loss on drying NaH2PO4 í_% NaH2PO4 .H2O,% NaH2PO4 . 2H2O,% 2.0 2.0 10.0-15.0 10.0-15.0 20.0-25.0 20.0-25.0. 25kg/bag woven bag.