Structure via PubChem · Public domain (PubChem)
tetraphosphorus hexaoxide
Sign in to saveAlso known as Phosphorus(III) oxide, tetraphosphorus hexoxide, (P2O3)2, P4O6, 2,4,6,8,9,10-hexaoxa-1,3,5,7-tetraphosphatricyclo[3.3.1.1(3,7)]decane, phosphorus oxide
chemical compound
Chemical data
- Formula
- O6P4
- Molecular weight
- 219.89 g/mol
- IUPAC name
- 2,4,6,8,9,10-hexaoxa-1,3,5,7-tetraphosphatricyclo[3.3.1.13,7]decane
- SMILES
- O1P2OP3OP1OP(O2)O3
- InChIKey
- VSAISIQCTGDGPU-UHFFFAOYSA-N
- XLogP
- -0.2
- Polar surface area
- 55.4 Ų
- H-bond donors
- 0
- H-bond acceptors
- 6
- Formal charge
- 0
via PubChem
Wikidata facts
- Subclass of
- phosphorus oxide
- Mass
- 219.864534
Show 6 more facts
- Commons category
- Phosphorus trioxide
- canonical SMILES
- O1P2OP3OP1OP(O2)O3
- chemical formula
- O₆P₄
- density
- 2.135
- melting point
- 23.8
- standard enthalpy of formation
- -1606
Sources (2)
via Wikidata · CC0
~2 min read
Encyclopedic overview
Phosphorus trioxide is the chemical compound with the molecular formula P4O6. Although the molecular formula suggests the name tetraphosphorus hexoxide, the name phosphorus trioxide preceded the knowledge of the compound's molecular structure, and its usage continues today. This colorless solid is structurally related to adamantane. It is formally the anhydride of phosphorous acid, H3PO3, but cannot be obtained by the dehydration of the acid. A white solid that melts at room temperature, it is waxy, crystalline and highly toxic, with garlic odor.
Preparation
Excerpted from Wikipedia’s “tetraphosphorus hexaoxide” article, available under the CC BY-SA 4.0 licence.