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2,3,3,3-TETRAFLUOROPROPENE
ICSC: 1776
Peer-Review Status: 11.04.2014 Validated
2,3,3,3-Tetrafluoroprop-1-ene
HFO-1234yf
R1234YF
CAS #: 754-12-1 UN #: 3161
EINECS #: 468-710-7
    Formula: C2H2F4 / CH2CFCF3
Molecular mass: 114.0

TYPES OF HAZARD
/ EXPOSURE
ACUTE HAZARDS / SYMPTOMS PREVENTION FIRST AID / FIRE-FIGHTING
FIRE Extremely flammable. Cylinder may explode in heat of fire.  NO open flames, NO sparks and NO smoking.  Shut off supply; if not possible and no risk to surroundings, let the fire burn itself out. In other cases extinguish with carbon dioxide, dry powder. 
EXPLOSION Gas/air mixtures are explosive.  Closed system, ventilation, explosion-proof electrical equipment and lighting. Prevent build-up of electrostatic charges (e.g., by grounding) if in liquid state.  Combat fire from a sheltered position. In case of fire: keep cylinder cool by spraying with water. 
 
EXPOSURE      
Inhalation Dizziness. Headache. Lethargy. Suffocation.  Use ventilation.  Fresh air, rest. 
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 ON CONTACT WITH LIQUID: FROSTBITE.  Wear face shield or safety goggles.  ON FROSTBITE: rinse with plenty of water. Refer immediately for medical attention. 
Ingestion   Do not eat, drink, or smoke during work.   

SPILLAGE DISPOSAL
PACKAGING & LABELLING
Evacuate danger area! Consult an expert! Turn off gas at source if possible. Ventilation. Remove gas with fine water spray. NEVER direct water jet on liquid. Personal protection: complete protective clothing including self-contained breathing apparatus.   
EC Classification
 
UN Classification
UN Hazard Class: 2.1 
GHS Classification
Signal: Danger
Extremely flammable gas
Contains gas under pressure; may explode if heated 
flam;flamecylinder;gas

EMERGENCY RESPONSE SAFE STORAGE
  Fireproof. Cool. Keep in a well-ventilated room. 

IMPORTANT DATA
Physical State; Appearance
COLOURLESS LIQUEFIED GAS. 

Physical dangers
The gas is heavier than air and may travel along the ground; distant ignition possible. 

Chemical dangers
Decomposes on contact with hot surfaces or flames. This produces toxic fumes including hydrogen fluoride. 

Occupational exposure limits
TLV not established.
MAK (not established):. 

Routes of exposure
Exposure mainly occurs via inhalation. 

Inhalation risk
On loss of containment this substance can cause suffocation by lowering the oxygen content of the air in confined areas. 

Effects of short-term exposure
Asphyxiation. Rapid evaporation of the liquid may cause frostbite. See Notes. 

Effects of long-term or repeated exposure
 


PHYSICAL PROPERTIES ENVIRONMENTAL DATA
Boiling point: -29.4°C
Density (for liquid): 1.1 g/cm³
Solubility in water, g/l at 24°C: 0.2 (very poor)
Vapour pressure, kPa at 21.1°C: 600
Auto-ignition temperature: 405°C
Relative vapour density (air = 1): 4
Explosive limits, vol% in air: 6.2 - 12.3
Octanol/water partition coefficient as log Pow: 2.15  
 

NOTES
High concentrations in the air cause a deficiency of oxygen with the risk of unconsciousness or death.
Check oxygen content before entering the area.
Turn leaking cylinder with the leak up to prevent escape of gas in liquid state. 

ADDITIONAL INFORMATION
 

IPCS
International
Programme on
Chemical Safety
WHO ILO EC Prepared in the context of cooperation between the International Programme on Chemical Safety and the European Commission
© IPCS 2004-2012
LEGAL NOTICE Neither the EC nor the IPCS nor any person acting on behalf of the EC or the IPCS is responsible for the use which might be made of this information.
    See Also:
       Toxicological Abbreviations