Sulfur fluoride
F6S
Molecular mass: 146.1
(cylinder)
ICSC # 0571
CAS # 2551-62-4
RTECS # WS4900000
UN # 1080
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Types of Hazard/ Exposure
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Acute Hazards/ Symptoms
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Prevention
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First Aid/
Fire Fighting
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FIRE
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Not combustible.
Gives off irritating or toxic fumes (or gases) in a fire.
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In case of fire in the surroundings: use appropriate extinguishing media.
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Explosion
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In case of fire: keep cylinder cool by spraying with water.
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Exposure
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•Inhalation
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Suffocation.
See Notes.
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Ventilation.
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Fresh air, rest.
Artificial respiration may be needed.
Refer for medical attention.
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•Skin
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ON CONTACT WITH LIQUID: FROSTBITE.
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Cold-insulating gloves.
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ON FROSTBITE: rinse with plenty of water, do NOT remove clothes.
Refer for medical attention.
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•Eyes
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See Skin.
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Safety goggles,
face shield
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First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor.
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•Ingestion
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Do not eat, drink, or smoke during work.
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Spillage Disposal
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Storage
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Packaging & Labelling
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Evacuate danger area!
Ventilation.
NEVER direct water jet on liquid.
Personal protection:
chemical protection suit including self-contained breathing apparatus.
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Fireproof if in building.
Cool.
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UN Hazard Class: 2.2
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Important Data
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Physical State; Appearance:
ODOURLESS
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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:
TLV: 1000 ppm as TWA; (ACGIH 2004).
MAK: 1000 ppm, 6100 mg/m3
Peak limitation category: II(8); Pregnancy risk group: D;
(DFG 2006).
OSHA PEL: TWA 1000 ppm (6000 mg/m3)
NIOSH REL: TWA 1000 ppm (6000 mg/m3)
NIOSH IDLH: N.D. See: IDLH INDEX
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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.
Effects of Long-Term or Repeated Exposure:
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Physical
Properties
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Sublimation point: -64°C
Melting point: -51°C
Relative density (water = 1): 1.9
Solubility in water:
none
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Relative vapour density (air = 1): 5
Octanol/water partition coefficient as log Pow: 1.68
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Environmental
Data
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N O T E S
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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.
Elegas and Esaflon are trade names.
Card has been partly updated in October 2005. See sections Occupational Exposure Limits, Emergency Response.
Transport Emergency Card: TEC (R)-20S1280 or 20G2A
Card has been partially updated in August 2007: see Occupational Exposure Limits.
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ADDITIONAL INFORMATION
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ICSC: 0571
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SULPHUR HEXAFLUORIDE
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(C) IPCS, CEC, 1994
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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 NIOSH IDLH values.
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