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Phosphorus Pentoxide - P₂O₅

Classification: Oxide
Atomic numbers: 15 & 8
Atomic weight: 142.04
Melting point (C): 563
Boiling point (C): 347 subl.
Density (g/cm3): 2.39
Refractive index (n=):
Hardness (Mosh-scratch): 1-2
Crystal structure: Monoclinic-normal: (100) a-pinacoid
Color (solid): White
Cleavage: Basal: (001)