HFC 134a
C2H2F4
Molecular mass: 102.03
(cylinder)
ICSC # 1281
CAS # 811-97-2
RTECS # KI8842500
UN # 3159
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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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NO open flames.
NO contact with hot surfaces.
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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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Dizziness.
Drowsiness.
Dullness.
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Local exhaust or breathing protection.
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Fresh air, rest.
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.
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•Eyes
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Safety goggles.
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•Ingestion
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Spillage Disposal
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Storage
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Packaging & Labelling
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NEVER direct water jet on liquid.
Do NOT let this chemical enter the environment.
Chemical protection suit including self-contained breathing apparatus.
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Fireproof.
Keep in a well-ventilated room.
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UN Hazard Class: 2.2
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Important Data
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Physical State; Appearance:
COMPRESSED LIQUEFIED GAS
, WITH CHARACTERISTIC ODOUR.
Physical Dangers:
Chemical Dangers:
On contact with hot surfaces or flames this substance decomposes forming toxic and corrosive fumes.
Occupational Exposure Limits:
TLV not established.
MAK: 1000 ppm, 4200 mg/m3
Peak limitation category: II(8); Pregnancy risk group: C;
(DFG 2004).
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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.
The substance may cause effects on the
central nervous system
and
cardiovascular system
, resulting in
cardiac disorders
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Effects of Long-Term or Repeated Exposure:
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Physical
Properties
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Boiling point: -26°C
Melting point: -101°C
Solubility in water: none
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Vapour pressure, kPa at 25°C: 630
Relative vapour density (air = 1): 3.5
Octanol/water partition coefficient as log Pow: 1.06
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Environmental
Data
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This substance does enter the environment under normal use. Great care, however, should be given to avoid any additional release, e.g. through inappropriate disposal.
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N O T E S
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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.
Card has been partly updated in April 2005. See sections Occupational Exposure Limits, Emergency Response.
Transport Emergency Card: TEC (R)-20G2A
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ADDITIONAL INFORMATION
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ICSC: 1281
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1,1,1,2-TETRAFLUOROETHANE
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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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