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NITRIC OXIDEICSC: 1311
Nitrogen oxide
Mononitrogen monoxide
June 2015
CAS #: 10102-43-9
UN #: 1660
EC Number: 233-271-0

  ACUTE HAZARDS PREVENTION FIRE FIGHTING
FIRE & EXPLOSION Not combustible but enhances combustion of other substances.    NO contact with combustible substances.    In case of fire in the surroundings, use appropriate extinguishing media.  In case of fire: keep cylinder cool by spraying with water. Combat fire from a sheltered position. 

 STRICT HYGIENE!  
  SYMPTOMS PREVENTION FIRST AID
Inhalation Cough. Shortness of breath.  Use ventilation.  Fresh air, rest. 
Skin      
Eyes Redness.  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      

SPILLAGE DISPOSAL CLASSIFICATION & LABELLING
Personal protection: gas-tight chemical protection suit including self-contained breathing apparatus. Shut off cylinder if possible. Isolate the area until the gas has dispersed. 

According to UN GHS Criteria

flam circlecylinder;gasskull;toxiccancer;health haz
DANGER
Contains gas under pressure; may explode if heated
May cause or intensify fire; oxidizer
Toxic if inhaled
Causes damage to lungs
Causes damage to the lungs through prolonged or repeated exposure 

Transportation
UN Classification
UN Hazard Class: 2.3; UN Subsidiary Risks: 5.1 and 8 

STORAGE
Fireproof if in building. Keep in a well-ventilated room. 
PACKAGING
 
NITRIC OXIDE ICSC: 1311
PHYSICAL & CHEMICAL INFORMATION

Physical State; Appearance
COLOURLESS COMPRESSED GAS. 

Physical dangers
 

Chemical dangers
The substance is a strong oxidant. It reacts with combustible and reducing materials. 

Formula: NO
Molecular mass: 30.0
Boiling point: -151.8°C
Melting point: -163.6°C
Solubility in water, ml/100ml at 0°C: 7.4
Relative vapour density (air = 1): 1.04  


EXPOSURE & HEALTH EFFECTS

Routes of exposure
The substance can be absorbed into the body by inhalation. 

Effects of short-term exposure
Inhalation of high concentrations of the gas may cause damage to the lungs. 

Inhalation risk
A harmful concentration of this gas in the air will be reached very quickly on loss of containment. 

Effects of long-term or repeated exposure
Repeated or prolonged inhalation may cause effects on the lungs. 


OCCUPATIONAL EXPOSURE LIMITS
TLV: 25 ppm as TWA; BEI issued.
MAK: 0.63 mg/m3, 0.5 ppm; peak limitation category: I(2); pregnancy risk group: D.
EU-OEL: 2.5 mg/m3, 2 ppm as TWA 

ENVIRONMENT
 

NOTES
There is no odour warning even when toxic concentrations are present.
Contact with air generates nitrogen dioxide.
See ICSC 0930. 

ADDITIONAL INFORMATION
  EC Classification
 

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    See Also:
       Toxicological Abbreviations