File:Sodium-peroxide-unit-cell-3D-balls.png · Wikimedia Commons · See Wikimedia Commons
Chemical data
- Formula
- Na2O2
- Molecular weight
- 77.978 g/mol
- IUPAC name
- disodium;peroxide
- SMILES
- [O-][O-].[Na+].[Na+]
- InChIKey
- PFUVRDFDKPNGAV-UHFFFAOYSA-N
- Polar surface area
- 46.1 Ų
- H-bond donors
- 0
- H-bond acceptors
- 2
- Formal charge
- 0
via PubChem
Wikidata facts
- Mass
- 77.969
Show 6 more facts
- canonical SMILES
- [O-][O-].[Na+].[Na+]
- Commons category
- Sodium peroxide
- chemical formula
- Na₂O₂
- density
- 2.8
- melting point
- 675
- standard enthalpy of formation
- -513
via Wikidata · CC0
~3 min read
Encyclopedic overview
Sodium peroxide is an inorganic compound with the formula Na2O2. This yellowish solid is the product of sodium ignited in excess oxygen. It is a strong base. This metal peroxide exists in several hydrates and peroxyhydrates including Na2O2·2H2O2·4H2O, Na2O2·2H2O, Na2O2·2H2O2, and Na2O2·8H2O. The octahydrate, which is simple to prepare, is white, in contrast to the anhydrous material.
Properties
Excerpted from Wikipedia’s “sodium peroxide” article, available under the CC BY-SA 4.0 licence.