IPCS INCHEM Home
SODIUM AZIDE
ICSC: 0950
Peer-Review Status: 04.07.1997 Validated
Azide
Azium 
CAS #: 26628-22-8 RTECS #: VY8050000
UN #: 1687
EC #: 011-004-00-7
EINECS #: 247-852-1
    Formula: NaN3
Molecular mass: 65.02

TYPES OF
HAZARD /
EXPOSURE
ACUTE HAZARDS / SYMPTOMS      PREVENTION      FIRST AID / FIRE FIGHTING
FIRE   NO contact with acids or heavy metals.  Use dry sand, special powder. 
EXPLOSION Risk of fire and explosion on contact with acids or metals.  Do NOT expose to friction or shock.  In case of fire: keep drums, etc., cool by spraying with water. 
 
EXPOSURE   STRICT HYGIENE!   
Inhalation Cough. Headache. Shortness of breath. Unconciousness. Nasal congestion. Blurred vision. Slowing of heart rate. Fall in blood pressure.  Use local exhaust or breathing protection.  Fresh air, rest. Artificial respiration may be needed. Refer for medical attention. 
Skin MAY BE ABSORBED! Redness. Blisters.  Protective gloves.  Remove contaminated clothes. Rinse skin with plenty of water or shower. 
Eyes Redness. Pain.  Wear safety goggles or eye protection in combination with breathing protection.  First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention. 
Ingestion Abdominal pain. Nausea. Sweating. Further see Inhalation.  Do not eat, drink, or smoke during work.  Rinse mouth. Do NOT induce vomiting. Give one or two glasses of water to drink. Rest. Refer for medical attention . 

SPILLAGE DISPOSAL
PACKAGING & LABELLING
Evacuate danger area! Consult an expert! Sweep spilled substance into covered plastic containers. If appropriate, moisten first to prevent dusting. Carefully collect remainder. Then store and dispose of according to local regulations. Personal protection: complete protective clothing including self-contained breathing apparatus.  Do not transport with food and feedstuffs. 
EC Classification
Symbol: T+, N; R: 28-32-50/53; S: (1/2)-28-45-60-61 
UN Classification
UN Hazard Class: 6.1; UN Pack Group: II 
GHS Classification
 

EMERGENCY RESPONSE SAFE STORAGE
Transport Emergency Card: TEC (R)-61G12B.  Fireproof. Separated from acids, food and feedstuffs, metals, lead and lead compounds. 

IMPORTANT DATA
Physical State; Appearance
ODOURLESS COLOURLESS HEXAGONAL CRYSTALS. 

Physical dangers
 

Chemical dangers
May explode on heating above melting point, especially on rapid heating. This generates fire and explosion hazard. The solution in water is a weak base. Reacts with copper, lead, silver, mercury and carbon disulfide. This produces particularly shock-sensitive compounds. Reacts with acids. This produces toxic and explosive hydrogen azide. 

Occupational exposure limits
TLV: 0.29mg/m³ (ceiling value); A4 (not classifiable as a human carcinogen); (ACGIH 2005). 

Routes of exposure
The substance can be absorbed into the body by inhalation, through the skin and by ingestion. 

Inhalation risk
Evaporation at 20°C is negligible; a harmful concentration of airborne particles can, however, be reached quickly. 

Effects of short-term exposure
The substance is irritating to the eyes, skin and respiratory tract. Exposure slightly above the OEL could cause effects on the nervous system. 

Effects of long-term or repeated exposure
 


PHYSICAL PROPERTIES ENVIRONMENTAL DATA
Decomposes at 275°C
Relative density (water = 1): 1.8475
Solubility in water, g/100ml at 17°C: 41.7 (good) 
 

NOTES
The occupational exposure limit value should not be exceeded during any part of the working exposure.
Smite is a trade name.
Card has been partially updated in November 2008: see Occupational Exposure Limits, Ingestion First Aid, EU Classification, Packaging & labelling. 

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