Sodium oxide
Basic information
- CAS
1313-59-3- Standard SMILES
[Na+].[Na+].[O-2]- InChIKey
KKCBUQHMOMHUOY-UHFFFAOYSA-N- Molecular formula
- Na2O
- Average molar mass
- 61.979 g/mol
- Monoisotopic mass
- 61.97445318
Names & identifiers
- Preferred name
- Sodium oxide
- IUPAC
- disodium;oxygen(2-)
- English name
- Sodium oxide
- Molecular formula
- Na2O
- Molecular weight
- 61.98
Names & synonyms
Sodium oxide1313-59-3Disodium monoxideNa2OSodium oxide (Na2O)Natrum Oxydatum3075U8R23DDTXSID0049781RefChem:6243DTXCID00820245215-208-9235-641-7
Show more names
SODIUM MONOXIDENatriumoxidOxybissodiumSodiuM oxide 80%Sodium oxide 80%sodiumoxide(na2o)disodium oxygen(2-)
Disodium oxidedisodium;oxygen(2-)MFCD00046201UNII-3075U8R23DEINECS 215-208-9Sodium oxide, 80%SODIUM OXIDE [MI]SCHEMBL29233
Database identifiers
- CAS
1313-59-3- PubChem CID
- 73971
- DTXSID
DTXSID0049781- UNII
- 3075U8R23D
- EC Number
- 215-208-9
Properties
Computed structural properties
- Topological polar surface area
- 1 Ų
- Hydrogen bond donors
- 0
- Hydrogen bond acceptors
- 1
- Rotatable bonds
- 0
- Heavy atoms
- 3
- Formal charge
- 0
- Complexity
- 0
Experimental & physicochemical properties
SpringerMaterials Propertiesdielectric constant
Density
2.3 g/cm³
2.27 @25 °C
SolubilitySolubility in water: reaction
Animal DrugsPharmaceuticals -> UK Veterinary Medicines Directorate List
Decomposition>400 °C. This produces sodium peroxide and sodium. Attacks many metals in the presence of water.
Melting Point1275 °C (sublimes)
Physical Description
CBI; Large Crystals; Other Solid; Dry Powder; Dry Powder; Other Solid; Liquid; Dry Powder; Large Crystals
WHITE LUMPS OR POWDER.
Physicochemical properties
- Melting point
- 400 °C · >400°C
- Boiling point
- 1274 ℃ · sublimes at 1274℃ [HAW93]
Safety & regulation
Safety information is for reference only and does not replace the supplier’s Safety Data Sheet (SDS), applicable regulations, or professional assessment.
GHS classification
GHS Classification
This chemical does not meet GHS hazard criteria for 11.4% (81 of 711) of reports.
Danger
H314 (86.9%): Causes severe skin burns and eye damage [Danger Skin corrosion/irritation]
P260, P264, P264+P265, P280, P301+P330+P331, P302+P361+P354, P304+P340, P305+P354+P338, P316, P317, P321, P363, P405, and P501 (click each P-code to see the statement)
Aggregated GHS information provided per 711 reports by companies from 17 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.
Hazard information
Regulatory Information
Chemical: Sodium oxide (Na2O)
Sodium oxide (Na2O) is listed on the EPA's Chemical Data Reporting (CDR) system. Manufacturers and importers of Sodium oxide (Na2O) are required to report information about their production and use of this chemical to the EPA under the Toxic Substances Control Act (TSCA). (40 eCFR Part 711)
REACH registered substance: Disodium oxide (EC: 215-208-9)
Sodium oxide (Na2O): Does not have an individual approval but may be used as a component in a product covered by a group standard. It is not approved for use as a chemical in its own right.
Fire HazardsNot combustible but enhances combustion of other substances.
UN ClassificationUN Hazard Class: 8; UN Pack Group: II
Chemical Dangers
The solution in water is a strong base. It reacts violently with acid and is corrosive. Reacts violently with water. This produces sodium hydroxide. Decomposes at >400 °C. This produces sodium peroxide and sodium. Attacks many metals in the presence of water.
Packaging and Labelling
Chemistry & industry
Pharmacology
FDA Pharmacological Classification
NATRUM OXYDATUM
Increased Large Intestinal Motility [PE]; Osmotic Activity [MoA]; Osmotic Laxative [EPC]; Inhibition Large Intestine Fluid/Electrolyte Absorption [PE]
Uses & manufacturing
U.S. Production2023: 25,000,000 - <40,000,000 lb
Consumer UsesFiller
Industry UsesOther
Household ProductsInformation on 1 consumer products that contain Sodium oxide in the following categories is provided:
General Manufacturing Information
Industrial Gas Manufacturing
Sodium oxide (Na2O): ACTIVE
Applications
UsesAs a dehydrating agent; in certain chemical reactions as a polymerizing or condensing agent.
UsesSodium oxide is used in chemical manufacturing, ceramics and glasses. Ethylbenzene dehydrogenation and carbon dioxide shift-reaction occurs using a sodium oxide/alumina catalyst. It is employed as catalyzing gasification of CO2 on carbon.
UsesSodium oxide has been used as a coating precursor on organic polymer films during the plasma modification to analyze its antimicrobial properties.
General DescriptionSodium oxide is a strong alkaline oxide, commonly used as an active flux in ceramic glazes.
Upstream & downstream products
Related reactions
4 records
Compound notes
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