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Phosphorus pentoxide is a chemical compound with molecular formula P₄O₁₀. This white crystalline solid is the anhydride of phosphoric acid. It is a powerful desiccant and dehydrating agent.
IUPAC ID: tricyclo[22.214.171.124,7]tetraphosphoxane 1,3,5,7-tetraoxide
Molar mass: 283.89 g/mol
Melting point: 340 °C
Density: 2.39 g/cm³
Boiling point: 360 °C
Soluble in: Water