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SODIUM OXIDE
ICSC: 1653
Peer-Review Status: 11.10.2006 Validated
Sodium monoxide
Disodium oxide
Disodium monoxide 
CAS #: 1313-59-3 UN #: 1825
EINECS #: 215-208-9
 		    Formula: Na2O
Molecular mass: 62.0

TYPES OF
HAZARD /
EXPOSURE 		ACUTE HAZARDS / SYMPTOMS      PREVENTION      FIRST AID / FIRE FIGHTING
FIRE Not combustible but enhances combustion of other substances.    NO water. Use dry powder, dry sand. 
EXPLOSION      
 
EXPOSURE   AVOID ALL CONTACT! PREVENT DISPERSION OF DUST!  IN ALL CASES CONSULT A DOCTOR! 
Inhalation Sore throat. Cough. Burning sensation. Laboured breathing. Shortness of breath.  Use local exhaust. Use breathing protection.  Fresh air, rest. Half-upright position. Artificial respiration may be needed. Refer immediately for medical attention. 
Skin Redness. Pain. Serious skin burns.  Protective gloves. Protective clothing.  Remove contaminated clothes. Rinse skin with plenty of water or shower. Refer immediately for medical attention. 
Eyes Redness. Pain. Burns.  Wear face shield or eye protection in combination with breathing protection if powder.  Rinse with plenty of water for several minutes (remove contact lenses if easily possible). Refer immediately for medical attention. 
Ingestion Sore throat. Burning sensation in the throat and chest. Shock or collapse.  Do not eat, drink, or smoke during work.  Rinse mouth. Do NOT induce vomiting. Refer immediately for medical attention. 

SPILLAGE DISPOSAL
 		PACKAGING & LABELLING
Personal protection: chemical protection suit including self-contained breathing apparatus. Sweep spilled substance into covered dry, plastic containers. Wash away remainder with plenty of water.  Do not transport with food and feedstuffs. 
EC Classification
 
UN Classification
UN Hazard Class: 8; UN Pack Group: II 
GHS Classification
Signal: Danger
Causes severe skin burns and eye damage 
corr

EMERGENCY RESPONSE SAFE STORAGE
Transport Emergency Card: TEC (R)-80GC6-II+III.  Separated from strong acids and food and feedstuffs. Dry. 

IMPORTANT DATA
Physical State; Appearance
WHITE LUMPS OR POWDER. 

Physical dangers
 

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. 

Occupational exposure limits
TLV (NOT-ESTABLISHED):. 

Routes of exposure
Serious by all routes of exposure. 

Inhalation risk
A harmful concentration of airborne particles can be reached quickly when dispersed, especially if powdered. 

Effects of short-term exposure
The substance is corrosive to the eyes, skin and respiratory tract. Corrosive on ingestion. Inhalation of the aerosol may cause lung oedema. See Notes. Medical observation is indicated. 

Effects of long-term or repeated exposure
 


PHYSICAL PROPERTIES ENVIRONMENTAL DATA
Melting point: 1275°C (sublimes)
Density: 2.3 g/cm³
Solubility in water: reaction  		 

NOTES
Reacts violently with fire extinguishing agents such as water.
The symptoms of lung oedema often do not become manifest until a few hours have passed and they are aggravated by physical effort.
Rest and medical observation are therefore essential.
Immediate administration of an appropriate inhalation therapy by a doctor or a person authorized by him/her, should be considered.
See ICSC 0360 Sodium hydroxide. 

ADDITIONAL INFORMATION
 

IPCS
International
Programme on
Chemical Safety 		WHO ILO EC Prepared in the context of cooperation between the International Programme on Chemical Safety and the European Commission
© IPCS 2004-2012
LEGAL NOTICE Neither the EC nor the IPCS nor any person acting on behalf of the EC or the IPCS is responsible for the use which might be made of this information. 
    See Also:
       Toxicological Abbreviations