Basic information
- Standard SMILES
O=P12OP3(=O)OP(=O)(O1)OP(=O)(O2)O3- InChIKey
DLYUQMMRRRQYAE-UHFFFAOYSA-N- Molecular formula
- O10P4
- Average molar mass
- 283.89 g/mol
- Monoisotopic mass
- 283.84419418
Names & identifiers
- Preferred name
- Phosphorus oxide (P4O10)
- IUPAC
- 2,4,6,8,9,10-hexaoxa-1lambda5,3lambda5,5lambda5,7lambda5-tetraphosphatricyclo[3.3.1.13,7]decane 1,3,5,7-tetraoxide
- English name
- TETRAPHOSPHORUSDECAOXIDE
- Molecular formula
- O10P4
- Molecular weight
- 283.89
Names & synonyms
Tetraphosphorus decaoxide16752-60-6Phosphorus oxide (P4O10)CHEBI:37376DTXSID701335584RefChem:1095542DTXCID4027737Phosphoric anhydrideDiphosphorus pentoxidePhosphorpentoxidP4O10P2O5
Show more names
phosphorus decaoxideTETRAPHOSPHORUSDECAOXIDE2,4,6,8,9,10-Hexaoxa-1,3,5,7-tetraphosphatricyclo[3.3.1.13,7]decane, 1,3,5,7-tetraoxide
2,4,6,8,9,10-hexaoxa-1lambda5,3lambda5,5lambda5,7lambda5-tetraphosphatricyclo[3.3.1.13,7]decane 1,3,5,7-tetraoxidePhosphoric pentoxidePhosphorous pentoxidePhosphorus pentaoxidePhosphoric acid anhydridePhosphor(V)-oxiddiphosphorous pentoxideSCHEMBL1006
Database identifiers
- CAS
16752-60-6- PubChem CID
- 14812
- DTXSID
DTXSID701335584- ChEBI
CHEBI:37376
Properties
Computed structural properties
- XLogP
- -2.4
- Topological polar surface area
- 124 Ų
- Hydrogen bond donors
- 0
- Hydrogen bond acceptors
- 10
- Rotatable bonds
- 0
- Heavy atoms
- 14
- Formal charge
- 0
- Complexity
- 327
Physicochemical properties
- Density
- 2.46 · 2.46±0.1 g/cm3(Predicted)
Chemistry & industry
Applications
General DescriptionPhosphorus pentoxide forms three solid modifications, of which the metastable M form is the ordinary commercial P2O5. This modification crystallizes as rhombohedra with a molecular lattice (P4O10) and sublimes readily at 250°C and 10 mm. Above 260°C and even more quickly above 500°C, form M changes into form R. The latter crystallizes in a three-dimensional atomic lattice of PO4 tetrahedra and is less volatile. A form S crystallizes in a layer lattice, and a few vitreous forms are also known. Modification M is brittle; R and S form hard crystals, which deliquesce after a few hours in the air and undergo considerable swelling in water. The density of R is 2.72, and that of M is 2.30 (calculated from x-ray data).
Additional notes
DefinitionChEBI: Tetraphosphorus decaoxide is a phosphorus oxide.
Related reactions
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Linked notes
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