Melting point :460 °C (dec.)(lit.)
Boiling point :657°C
Density :2.8
vapor pressure :0.001Pa at 20℃
Flash point :657°C
storage temp. :Store at +15°C to +25°C.
solubility :Soluble in acid. Insoluble in alkali.
form :beads (small)
color :Yellow
Specific Gravity :2.805
PH :12.8 (100g/l, H2O, 20℃)
Odor :Odorless
PH Range :12.8
Water Solubility :Soluble in water, forming NaOH and H{2}O{2}. Soluble in acid. Insoluble in alkali.
Sensitive :Air Sensitive & Hygroscopic
Merck :14,8655
Dielectric constant :2.7（Ambient）
Stability :Reacts violently with water. Contact with combustible materials may cause fire or explosion. Incompatible with strong oxidizing agents, alcohols, organic materials, acids, powdered metals. Absorbs carbon dioxide from the air.
CAS DataBase Reference :1313-60-6(CAS DataBase Reference)
EPA Substance Registry System :Sodium peroxide (1313-60-6)

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.