CAS: 1314-56-3 EC No: 215-236-1 MDL No: MFCD00011440 RTECS: TH3945000 UN No: UN1807; Haz Class: 8; Packing Group: II Powder Linear Formula: P₂O₅ MW: 141.94 Melting Point: 340° Boiling Point: 360° (sublimes) Density (g/mL): 2.39