... feculent, it also can help food to avoid discolor and analysis of vitamin C. Furthermore, it’s main production material of ... Usually it should be controlled in 0.3% ~ 0.5%, and the amount of P2O5 should ≤ 0.5%.PackingIn 25kg, 50kg or ... Grade1AppearanceWhite powder2Main Contents%953P2O5 %≥65.04Arsenic,as As%≤0.00025Heavy metals,as Pb %≤0.0016Fluoride,as F %≤ 0.001 7Water insoluble %≤0.1 8PH6.0-9.0