Diphosphorous Pentoxide(P2O5)
Item
Specification
Appearance
White Crystals
Assay, (P2O5), %
99.5 min.
Lower Oxide, (as P2O3), %   
0.1
Heavy Metal (as Pb), ppm
20 max.
Arsenic, (As), ppm                
75 max.
Iron (Fe), ppm
20 max.