Phosphorus Pentoxide
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Cite "Phosphorus Pentoxide"
Phosphorus Pentoxide. (n.d.). In Compound. Retrieved from /de/compound/phosphorus-pentoxide/
"Phosphorus Pentoxide." Compound, /de/compound/phosphorus-pentoxide/.
@misc{phosphorus-pentoxide, title={Phosphorus Pentoxide}, url={/de/compound/phosphorus-pentoxide/}}
IUPAC: Phosphorus(V) oxide
CAS: 1314-56-3
Übersicht
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.
Zusammensetzung
| Element | Symbol | Atome | Atommasse |
|---|---|---|---|
| Oxygen | O | 10 | 15,9990 |
| Phosphorus | P | 4 | 30,9740 |
Elementare Zusammensetzung
Verwendung
- • Powerful desiccant
- • Dehydrating agent in organic synthesis
- • Phosphoric acid production
- • Drying gases
Wissenswertes
- ✦ Can dry solvents to less than 1 ppm water content
- ✦ The molecular formula is P₄O₁₀, not P₂O₅ as commonly written
Sicherheit
- ⚠ Reacts violently with water
- ⚠ Corrosive
- ⚠ Causes severe burns
Structure
SMILES
O=P(=O)OP(=O)=O
Eigenschaften
- Typ
- oxide
- Zustand
- solid
- Molmasse
- 283,89 g/mol
- Dichte
- 2,3900 g/cm³
- Schmelzpunkt
- 340,0 °C
- Siedepunkt
- 360,0 °C
- Löslichkeit
- 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