International Chemical Safety Cards

SULPHUR HEXAFLUORIDE ICSC: 0571

SULPHUR HEXAFLUORIDE
Sulfur fluoride
(cylinder)
F6S
Molecular mass: 146.1
CAS # 2551-62-4
RTECS # WS4900000
ICSC # 0571
UN # 1080
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
    		• Suffocation (see Notes).
    		Ventilation.
    		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
    		• See Skin.
    		Safety goggles, face shield.
    		First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor.
  • INGESTION

    		• Do not eat, drink, or smoke during work.

    SPILLAGE DISPOSAL STORAGE PACKAGING & LABELLING
    Evacuate danger area! Ventilation. NEVER direct water jet on liquid (extra personal protection: chemical protection suit including self-contained breathing apparatus).
    		Fireproof if in building. Cool.

    UN Hazard Class: 2.2
    SEE IMPORTANT INFORMATION ON BACK
    ICSC: 0571 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

    SULPHUR HEXAFLUORIDE ICSC: 0571

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    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:
     The substance decomposes on heating above 500°C producing toxic and corrosive fumes including sulfur oxides, fluorine compounds.

    OCCUPATIONAL EXPOSURE LIMITS (OELs):
     TLV: 1000 ppm; 5970 mg/m3 (ACGIH 1997).
    OSHA PEL: TWA 1000 ppm (6000 mg/m3)
    NIOSH REL: TWA 1000 ppm (6000 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:
     Rapid evaporation of the liquid may cause frostbite.


    PHYSICAL
    PROPERTIES
    Sublimation point: -64°C
    Melting point: -51°C
    Relative density (water = 1): 1.9
    		 Solubility in water: none
    Relative vapour density (air = 1): 5
    Octanol/water partition coefficient as log Pow: 1.68
    ENVIRONMENTAL
    DATA
    N O T E S
    The technical product may contain impurities which alter the health effects. High concentrations in the air cause a deficiency of oxygen with the risk of unconsciousness or death. Check oxygen content before entering area. No odour warning if toxic concentrations are present. Turn leaking cylinder with the leak up to prevent escape of gas in liquid state. Elegas, and Esaflon are trade names.
    Transport Emergency Card: TEC (R)-860.
    ADDITIONAL INFORMATION


    ICSC: 0571 SULPHUR HEXAFLUORIDE
    © 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.