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SULPHUR HEXAFLUORIDEICSC: 0571
March 1998
CAS #: 2551-62-4Sulfur fluoride
UN #: 1080
EINECS #: 219-854-2

  ACUTE HAZARDS PREVENTION FIRE FIGHTING
FIRE & EXPLOSION Not combustible. Gives off irritating or toxic fumes (or gases) in a fire.        In case of fire in the surroundings, use appropriate extinguishing media.  In case of fire: keep cylinder cool by spraying with water. 

   
  SYMPTOMS ACUTE HAZARDS FIRST AID
Inhalation Suffocation. See Notes.  Use ventilation.  Fresh air, rest. Artificial respiration may be needed. 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.  Wear safety goggles or face shield.  First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention. 
Ingestion   Do not eat, drink, or smoke during work.   

SPILLAGE DISPOSAL CLASSIFICATION & LABELLING
Evacuate danger area! Ventilation. NEVER direct water jet on liquid. Personal protection: chemical protection suit including self-contained breathing apparatus. 

According to UN GHS Criteria

 

Transportation
UN Classification
UN Hazard Class: 2.2 

STORAGE
Fireproof if in building. Cool. 
PACKAGING
 
SULPHUR HEXAFLUORIDE ICSC: 0571
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. 

Chemical dangers
Decomposes above 500°C . This produces toxic and corrosive fumes including sulfur oxides and fluorine compounds. 

Formula: F6S
Molecular mass: 146.1
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  


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

Effects of long-term or repeated exposure
 


Occupational exposure limits
TLV: 1000 ppm as TWA.
MAK: 6100 mg/m3, 1000 ppm; peak limitation category: II(8); pregnancy risk group: D 

ENVIRONMENT
 

NOTES
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.
There is no odour warning even when toxic concentrations are present.
Turn leaking cylinder with the leak up to prevent escape of gas in liquid state. 

ADDITIONAL INFORMATION
  EC Classification
 

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    See Also:
       Toxicological Abbreviations