Phosphorus Pentoxide

P₄O₁₀

IUPAC: Phosphorus(V) oxide

CAS: 1314-56-3

Visão geral

Phosphorus pentoxide is the most powerful desiccant (drying agent) known. It is so hygroscopic that it reacts violently with water, producing phosphoric acid and considerable heat. It is used to dry gases and solvents and as a dehydrating agent in organic synthesis.

Composição

Elemento Símbolo Átomos Massa atômica
Oxygen O 10 15,9990
Phosphorus P 4 30,9740

Composição elemental

O
Oxygen ×10
56,4%
P
Phosphorus ×4
43,6%

Usos

  • • Powerful desiccant
  • • Dehydrating agent in organic synthesis
  • • Phosphoric acid production
  • • Drying gases

Curiosidades

  • ✦ Can dry solvents to less than 1 ppm water content
  • ✦ The molecular formula is P₄O₁₀, not P₂O₅ as commonly written

Segurança

  • ⚠ Reacts violently with water
  • ⚠ Corrosive
  • ⚠ Causes severe burns

Structure

SMILES

O=P(=O)OP(=O)=O

Propriedades

Tipo
oxide
Estado
solid
Massa molar
283,89 g/mol
Densidade
2,3900 g/cm³
Ponto de fusão
340,0 °C
Ponto de ebulição
360,0 °C
Solubilidade
decomposes violently

Molecular Descriptors

Exact Mass
141,9221
XLogP
-2,1
TPSA
77,5 Ų
H-Bond Donors
0
H-Bond Acceptors
5
Rotatable Bonds
0
Heavy Atoms
7
Complexity
123,0

Também conhecido como

Phosphorus pentoxide Diphosphorus pentoxide

Compostos relacionados

Bismuth(III) Oxide

Bi₂O₃

Carbon Monoxide

CO

Chromium Trioxide

CrO₃

Cobalt(II) Oxide

CoO

Copper(I) Oxide

Cu₂O

Lithium Nickel Manganese Cobalt Oxide

LiNi₀.₃₃Mn₀.₃₃Co₀.₃₃O₂

Gallium(III) Oxide

Ga₂O₃

Aluminum Oxide

Al₂O₃

Antimony Trioxide

Sb₂O₃

Cadmium Oxide

CdO

Frequently Asked Questions

What is Phosphorus Pentoxide?
Phosphorus Pentoxide (P₄O₁₀) is a oxide compound with the IUPAC name Phosphorus(V) oxide.
What is the molecular weight of Phosphorus Pentoxide?
Phosphorus Pentoxide has a molar mass of 283.886 g/mol.
What state is Phosphorus Pentoxide at room temperature?
Phosphorus Pentoxide is a solid at room temperature.
Is Phosphorus Pentoxide organic or inorganic?
Phosphorus Pentoxide is classified as an inorganic compound.
What elements make up Phosphorus Pentoxide?
Phosphorus Pentoxide (P₄O₁₀) is composed of Oxygen (O), Phosphorus (P).