Na5P3O10, % ≥:95
P2O5, % ≥:57.0
Fluoride (F), % ≤:0.003
Arsenic (As), % ≤:0.0003
Heavy metals (Pb), % ≤:0.001
Chloride (Cl), % ≤:0.025
Sulfate (SO42-), % ≤:0.4
Water insoluble, % ≤:0.05
pH (10g/l solution):9.5-10.0
Whiteness (W10), % ≥:85
Appearance:White granularity or powder