Melting point :>400°C
Boiling point :sublimes at 1274℃ [HAW93]
Density :2.27 g/mL at 25 °C (lit.)
vapor pressure :0Pa at 20℃
solubility :reacts with H2O
form :Beads
color :White to gray
Specific Gravity :2.27
Water Solubility :Soluble in water.
Sensitive :Air & Moisture Sensitive
Crystal Structure :Reverse CaF2 type
crystal system :Cube
Merck :14,8651
Space group :Fm3m
Lattice constant :

a/nm	b/nm	c/nm	α/o	β/o	γ/o	V/nm3
0.556	0.556	0.556	90	90	90	0.1719

Stability :Stable. Reacts violently with water, acids and with many other compounds. Store under dry inert gas. May lead to fire in contact with combustible material.
CAS DataBase Reference :1313-59-3(CAS DataBase Reference)
EPA Substance Registry System :Sodium oxide (1313-59-3)

Symbol(GHS):
Signal word:	Danger
Hazard statements:	Code Hazard statements Hazard class Category Signal word Pictogram P-Codes H271 May cause fire or explosion; strong oxidiser Oxidising liquids;Oxidising solids Category 1 Danger P210, P220, P221, P280, P283,P306+P360, P371+P380+P375,P370+P378, P501 H314 Causes severe skin burns and eye damage Skin corrosion/irritation Category 1A, B, C Danger P260,P264, P280, P301+P330+ P331,P303+P361+P353, P363, P304+P340,P310, P321, P305+ P351+P338, P405,P501
Precautionary statements:	P210 Keep away from heat/sparks/open flames/hot surfaces. — No smoking. P220 Keep/Store away from clothing/…/combustible materials. P260 Do not breathe dust/fume/gas/mist/vapours/spray. P280 Wear protective gloves/protective clothing/eye protection/face protection. P303+P361+P353 IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower. P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.