Sodium oxide

Sodium oxide
Sodium oxide
Sodium oxide
Sodium oxide
Sodium oxide
Names
IUPAC name
Sodium oxide
Other names
  • Disodium oxide
  • Natrium oxide (historic)
  • Soda
  • Sodium oxidosodium
Identifiers
3D model (JSmol)
ECHA InfoCard 100.013.827 Edit this at Wikidata
EC Number
  • 215-208-9
UNII
UN number 1825
  • InChI=1S/2Na.O/q2*+1;-2
  • [O-2].[Na+].[Na+]
Properties
Na2O
Molar mass 61.979 g·mol−1
Appearance white solid
Density 2.49 g/cm3
Melting point 1,132 °C (2,070 °F; 1,405 K)
Boiling point 1,950 °C (3,540 °F; 2,220 K) sublimates
sublimates at 1275 °C
Reacts to form NaOH
Solubility Reacts with ethanol
−19.8·10−6 cm3/mol
Structure
Antifluorite (face centered cubic), cF12
Fm3m, No. 225
Tetrahedral (Na+); cubic (O2−)
Thermochemistry
72.95 J/(mol·K)
73 J/(mol·K)[1]
−416 kJ/mol[1]
−377.1 kJ/mol
Hazards
Occupational safety and health (OHS/OSH):
Main hazards
corrosive, reacts violently with water
GHS labelling:
GHS05: Corrosive[2]
H314
P260, P264, P280, P301+P330+P331, P303+P361+P353, P304+P340, P305+P351+P338, P310, P321, P363, P405, P501
NFPA 704 (fire diamond)
NFPA 704 four-colored diamondHealth 3: Short exposure could cause serious temporary or residual injury. E.g. chlorine gasFlammability 0: Will not burn. E.g. waterInstability 1: Normally stable, but can become unstable at elevated temperatures and pressures. E.g. calciumSpecial hazard W: Reacts with water in an unusual or dangerous manner. E.g. sodium, sulfuric acid
3
0
1
Flash point nonflammable
Safety data sheet (SDS) ICSC 1653
Related compounds
Other anions
Other cations
Related sodium oxides
Related compounds
Sodium hydroxide
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Sodium oxide is a chemical compound with the formula Na2O. It is used in ceramics and glasses. It is a white solid but the compound is rarely encountered. Instead "sodium oxide" is used to describe components of various materials such as glasses and fertilizers which contain oxides that include sodium and other elements. Sodium oxide is a component.

  1. ^ a b Zumdahl, Steven S. (2009). Chemical Principles 6th Ed. Houghton Mifflin Company. p. A23. ISBN 978-0-618-94690-7.
  2. ^ Sigma-Aldrich Co., Sodium oxide. Retrieved on 2014-05-25.