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CARBON DIOXIDEICSC: 0021
October 2006
CAS #: 124-38-9Carbonic acid gas
Carbonic anhydride
UN #: 1013
EINECS #: 204-696-9

  ACUTE HAZARDS PREVENTION FIRE FIGHTING
FIRE & EXPLOSION Not combustible.        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. 

   
  SYMPTOMS ACUTE HAZARDS FIRST AID
Inhalation Dizziness. Headache. Elevated blood pressure. Increased heart rate. Suffocation. Unconsciousness.  Use ventilation.  Fresh air, rest. Artificial respiration may be needed. Refer for medical attention. 
Skin ON CONTACT WITH GAS OR DRY ICE: FROSTBITE.  Cold-insulating gloves.  ON FROSTBITE: rinse with plenty of water, do NOT remove clothes. Refer for medical attention . 
Eyes   Wear safety spectacles.   
Ingestion      

SPILLAGE DISPOSAL CLASSIFICATION & LABELLING
Personal protection: self-contained breathing apparatus. Ventilation. Do NOT use water. 

According to UN GHS Criteria

cylinder;gas
WARNING
Contains refrigerated gas; may cause cryogenic burns or injury
May be harmful if inhaled  

Transportation
UN Classification
UN Hazard Class: 2.2 

STORAGE
Fireproof if in building. Cool. Ventilation along the floor. 
PACKAGING
 
CARBON DIOXIDE ICSC: 0021
PHYSICAL & CHEMICAL INFORMATION

Physical State; Appearance
ODOURLESS COLOURLESS COMPRESSED LIQUEFIED GAS. 

Physical dangers
The gas is heavier than air and may accumulate in lowered spaces causing a deficiency of oxygen. Free-flowing liquid condenses to form extremely cold dry ice. 

Chemical dangers
Decomposes above 2000°C . This produces toxic carbon monoxide. 

Formula: CO2
Molecular mass: 44.0
Sublimation point: -79°C
Solubility in water, ml/100ml at 20°C: 88
Vapour pressure, kPa at 20°C: 5720
Relative vapour density (air = 1): 1.5
Octanol/water partition coefficient as log Pow: 0.83  


EXPOSURE & HEALTH EFFECTS

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

Effects of short-term exposure
Rapid evaporation of the liquid may cause frostbite. Inhalation of high levels may cause unconsciousness. Asphyxiation. 

Inhalation risk
On loss of containment this substance can cause serious risk of suffocation when in confined areas. 

Effects of long-term or repeated exposure
The substance may have effects on the metabolism. 


Occupational exposure limits
TLV: 5000 ppm as TWA; 30000 ppm as STEL.
MAK: 9100 mg/m3, 5000 ppm; peak limitation category: II(2).
EU-OEL: 9000 mg/m3, 5000 ppm as TWA 

ENVIRONMENT
 

NOTES
Carbon dioxide is given off by many fermentation processes (wine, beer, etc.) and is a major component of flue gas.
High concentrations in the air cause a deficiency of oxygen with the risk of unconsciousness or death.
Check oxygen content before entering the area.
There is no odour warning even when toxic concentrations are present.
Other UN classification numbers for transport are: UN 1845 carbon dioxide, solid (Dry ice); UN 2187 carbon dioxide refrigerated liquid. 

ADDITIONAL INFORMATION
  EC Classification
 

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    See Also:
       Toxicological Abbreviations
       CARBON DIOXIDE (JECFA Evaluation)