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CARBONYL FLUORIDE
(cylinder)
ICSC: 0633
Peer-Review Status: 24.11.2003 Validated
Carbon oxyfluoride
Carbon difluoride oxide
Difluoroformaldehyde
Fluorophosgene 
CAS #: 353-50-4 RTECS #: FG6125000
UN #: 2417
EINECS #: 206-534-2
    Formula: COF2
Molecular mass: 66.0

TYPES OF
HAZARD /
EXPOSURE
ACUTE HAZARDS / SYMPTOMS      PREVENTION      FIRST AID / FIRE FIGHTING
FIRE Not combustible. Gives off irritating or toxic fumes (or gases) in a fire.    In case of fire in the surroundings, use appropriate extinguishing media. 
EXPLOSION     In case of fire: keep cylinder cool by spraying with water. NO direct contact with water. Combat fire from a sheltered position. 
 
EXPOSURE   STRICT HYGIENE!   
Inhalation Burning sensation. Sore throat. Cough. Laboured breathing. Shortness of breath. Symptoms may be delayed. See Notes.  Use ventilation, local exhaust or breathing protection.  Fresh air, rest. Half-upright position. Artificial respiration may be needed. Refer for medical attention. 
Skin Redness. Pain. ON CONTACT WITH LIQUID: FROSTBITE.  Cold-insulating gloves. Protective clothing.  ON FROSTBITE: rinse with plenty of water, do NOT remove clothes. Refer for medical attention . 
Eyes Redness. Pain. ON CONTACT WITH LIQUID: FROSTBITE.  Wear face shield 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
PACKAGING & LABELLING
Evacuate danger area! Consult an expert! Ventilation. NEVER direct water jet on liquid. Personal protection: gas-tight chemical protection suit including self-contained breathing apparatus.   
EC Classification
 
UN Classification
UN Hazard Class: 2.3; UN Subsidiary Risks: 8 
GHS Classification
 

EMERGENCY RESPONSE SAFE STORAGE
Transport Emergency Card: TEC (R)-20G1TC.
NFPA Code: H4; F0; R0. 
Fireproof if in building. Cool. 

IMPORTANT DATA
Physical State; Appearance
COLOURLESS HYGROSCOPIC COMPRESSED LIQUEFIED GAS WITH PUNGENT ODOUR. 

Physical dangers
The gas is heavier than air. 

Chemical dangers
Decomposes at 450-490°C. This produces toxic gases. Reacts with water and moist air. 

Occupational exposure limits
TLV: 2 ppm as TWA; 5 ppm as STEL; (ACGIH 2003). 

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

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

Effects of short-term exposure
The substance is irritating to the eyes, skin and respiratory tract. Inhalation of high concentrations may cause lung oedema. Rapid evaporation of the liquid may cause frostbite. The effects may be delayed. Medical observation is indicated. See Notes. 

Effects of long-term or repeated exposure
 


PHYSICAL PROPERTIES ENVIRONMENTAL DATA
Boiling point: -83°C
Melting point: -114°C
Relative density (water = 1): 1.39 (-190°C)
Density (gas): 2.89 g/l
Solubility in water: reaction
Relative vapour density (air = 1): 2.3  
 

NOTES
The compound decomposes in the body to hydrogen fluoride, see ICSC 0283 Hydrogen fluoride.
Depending on the degree of exposure, periodic medical examination is suggested.
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 is therefore essential.
Immediate administration of an appropriate inhalation therapy by a doctor or a person authorized by him/her, should be considered.
Turn leaking cylinder with the leak up to prevent escape of gas in liquid state. 

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