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1,1,1,2-TETRAFLUOROETHANEICSC: 1281
March 1998
CAS #: 811-97-2HFC 134a
UN #: 3159
EINECS #: 212-377-0

  ACUTE HAZARDS PREVENTION FIRE FIGHTING
FIRE & EXPLOSION Not combustible. Gives off irritating or toxic fumes (or gases) in a fire.    NO open flames. NO contact with hot surfaces.    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 Dizziness. Drowsiness. Lethargy.  Use local exhaust or breathing protection.  Fresh air, rest. Refer for medical attention. 
Skin ON CONTACT WITH LIQUID: FROSTBITE.  Cold-insulating gloves.  ON FROSTBITE: rinse with plenty of water, do NOT remove clothes. 
Eyes   Wear safety goggles.   
Ingestion      

SPILLAGE DISPOSAL CLASSIFICATION & LABELLING
NEVER direct water jet on liquid. Do NOT let this chemical enter the environment. 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. Keep in a well-ventilated room. 
PACKAGING
 
1,1,1,2-TETRAFLUOROETHANE ICSC: 1281
PHYSICAL & CHEMICAL INFORMATION

Physical State; Appearance
COMPRESSED LIQUEFIED GAS WITH CHARACTERISTIC ODOUR. 

Physical dangers
 

Chemical dangers
Decomposes on contact with hot surfaces or flames. This produces toxic and corrosive fumes. 

Formula: C2H2F4
Molecular mass: 102.03
Boiling point: -26°C
Melting point: -101°C
Solubility in water: none
Vapour pressure, kPa at 25°C: 630
Relative vapour density (air = 1): 3.5
Octanol/water partition coefficient as log Pow: 1.06  


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. The substance may cause effects on the central nervous system and cardiovascular system. This may result in cardiac disorders. 

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
MAK: 4200 mg/m3, 1000 ppm; peak limitation category: II(8); pregnancy risk group: C 

ENVIRONMENT
This substance does enter the environment under normal use. Great care, however, should be taken to avoid any additional release, for example through inappropriate disposal. 

NOTES
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. 

ADDITIONAL INFORMATION
  EC Classification
 

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    See Also:
       Toxicological Abbreviations