International Chemical Safety Cards

CARBONYL FLUORIDE ICSC: 0633

CARBONYL FLUORIDE
Carbon oxyfluoride
Carbon difluoride oxide
Difluoroformaldehyde
(cylinder)
COF2
Molecular mass: 66.0
CAS # 353-50-4
RTECS # FG6125000
ICSC # 0633
UN # 2417
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: all extinguishing agents allowed EXCEPT HYDROUS AGENTS.
EXPLOSION

In case of fire: cool cylinder by spraying with water but avoid contact of the substance with water. Combat fire from a sheltered position.
EXPOSURE


  • INHALATION
    		• Sore throat. Cough. Laboured breathing. Symptoms may be delayed (see Notes).
    		Ventilation, local exhaust, or breathing protection.
    		Fresh air, rest. Half-upright position. Refer for medical attention.
  • SKIN
    		• Redness. Skin burns. 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. Loss of vision. Severe deep burns.
    		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 take to a doctor.
  • INGESTION



    • SPILLAGE DISPOSAL STORAGE PACKAGING & LABELLING
    Evacuate danger area! Consult an expert! Ventilation. NEVER direct water jet on liquid (extra personal protection: complete protective clothing including self-contained breathing apparatus).
    		Fireproof if in building. Cool.

    UN Hazard Class: 2.3
    UN Subsidiary Risks: 8
    SEE IMPORTANT INFORMATION ON BACK
    ICSC: 0633 Prepared in the context of cooperation between the International Programme on Chemical Safety & the Commission of the European Communities © IPCS CEC 1993 No modifications to the International version have been made except to add the OSHA PELs, NIOSH RELs and IDLH values.

    International Chemical Safety Cards

    CARBONYL FLUORIDE ICSC: 0633

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    PHYSICAL STATE; APPEARANCE:
     NEARLY ODOURLESS, COLOURLESS HYGROSCOPIC COMPRESSED LIQUEFIED GAS , WITH PUNGENT ODOUR.

    PHYSICAL DANGERS:
     The gas is heavier than air.

    CHEMICAL DANGERS:
     The substance decomposes on heating at 450-490°C producing toxic gases.

    OCCUPATIONAL EXPOSURE LIMITS (OELs):
     TLV: 2 ppm; 5.4 mg/m3 (as TWA); 5 ppm; 13 mg/m3 (as STEL) (ACGIH 1997).
    OSHA PEL: none
    NIOSH REL: TWA 2 ppm (5 mg/m3) ST 5 ppm (15 mg/m3)
    NIOSH IDLH: No data


    		ROUTES OF EXPOSURE:
     The substance can be absorbed into the body by inhalation.

    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 irritates the eyes, the skin and the respiratory tract. Inhalation of high concentrations may cause lung oedema (see Notes). Rapid evaporation of the liquid may cause frostbite. The effects may be delayed. Medical observation is indicated. See Notes.


    PHYSICAL
    PROPERTIES
    Boiling point: -83°C
    Melting point: -114°C
    Relative density (water = 1): 1.39, solid, -190°C; 1.14, liquid, -114°C
    		 Solubility in water: reaction
    Relative vapour density (air = 1): 2.3
    ENVIRONMENTAL
    DATA
    N O T E S
    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 is therefore essential. Immediate administration of an appropriate spray, 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.
    Transport Emergency Card: TEC (R)-20G35
    ADDITIONAL INFORMATION


    ICSC: 0633 CARBONYL FLUORIDE
    © IPCS, CEC, 1993
    IMPORTANT LEGAL NOTICE: Neither NIOSH, the CEC or the IPCS nor any person acting on behalf of NIOSH, the CEC or the IPCS is responsible for the use which might be made of this information. This card contains the collective views of the IPCS Peer Review Committee and may not reflect in all cases all the detailed requirements included in national legislation on the subject. The user should verify compliance of the cards with the relevant legislation in the country of use. The only modifications made to produce the U.S. version is inclusion of the OSHA PELs, NIOSH RELs and IDLH values.