International Chemical Safety Cards

TRIFLUOROMETHANE ICSC: 0577
TRIFLUOROMETHANE
Carbon trifluoride
Fluoroform
R 23
Methyl trifluoride
(cylinder)
CHF3
Molecular mass: 70.0
CAS # 75-46-7
RTECS # PB6900000
ICSC # 0577
UN # 1984

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.
EXPLOSION

In case of fire: keep cylinder cool by spraying with water.
EXPOSURE


  • INHALATION
  • Confusion. Drowsiness.
    Ventilation, local exhaust, or breathing protection.
    Fresh air, rest. Artificial respiration if indicated. Refer for medical attention.
  • SKIN
  • ON CONTACT WITH LIQUID: FROSTBITE.
    Cold-insulating gloves.
    ON FROSTBITE: rinse with plenty of water, do NOT remove clothes. Refer for medical attention.
  • EYES

  • Safety goggles.
    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
    Ventilation. NEVER direct water jet on liquid (extra personal protection: self-contained breathing apparatus).
    Cool. Ventilation along the floor.
    Special insulated cylinder.
    UN Hazard Class: 2.2
    SEE IMPORTANT INFORMATION ON BACK
    ICSC: 0577 Prepared in the context of cooperation between the International Programme on Chemical Safety & the Commission of the European Communities © IPCS CEC 1993

    International Chemical Safety Cards

    TRIFLUOROMETHANE ICSC: 0577

    I

    M

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    D

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    A

    PHYSICAL STATE; APPEARANCE:
    ODOURLESS, COLOURLESS COMPRESSED LIQUEFIED GAS.

    PHYSICAL DANGERS:
    The gas is heavier than air and may accumulate in low ceiling spaces causing deficiency of oxygen.

    CHEMICAL DANGERS:
    On contact with hot surfaces or flames this substance decomposes forming corrosive and very toxic fumes (hydrogen fluoride, ICSC # 0283).

    OCCUPATIONAL EXPOSURE LIMITS (OELs):
    TLV not established.


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

    INHALATION RISK:
    On loss of containment this gas can cause suffocation by lowering the oxygen content of the air in confined areas.

    EFFECTS OF SHORT-TERM EXPOSURE:
    Inhalation of the vapour may cause depression of the central nervous system. The liquid may cause frostbite. Exposure could cause cardiac arrythmia and asphyxiation. See Notes.


    PHYSICAL
    PROPERTIES
    Boiling point: -84.4C
    Melting point: -155C
    Relative density (water = 1): 1.44
    Solubility in water: none
    Vapour pressure, kPa at 20C: 4000
    Relative vapour density (air = 1): 2.4
    Octanol/water partition coefficient as log Pow: 0.64
    ENVIRONMENTAL
    DATA

    N O T E S
    To physicians: adrenergic agents are contraindicated. High concentrations in the air cause a deficiency of oxygen with the risk of unconsciousness or death. Check oxygen content before entering area. Do NOT use in the vicinity of a fire or a hot surface, or during welding. Turn leaking cylinder with the leak up to prevent escape of gas in liquid state. Freon 23, Frigen 23, Halon 23 are trade names.
    Transport Emergency Card: TEC (R)-644
    ADDITIONAL INFORMATION


    ICSC: 0577 TRIFLUOROMETHANE
    © IPCS, CEC, 1993
    IMPORTANT LEGAL NOTICE: Neither the CEC or the IPCS nor any person acting on behalf of 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.