1,1,2,2-Tetrafluoroethane

Formula
C2H2F4
Structure

Registry Numbers and Inventories.
CAS
359-35-3
EC (EINECS/ELINCS)
206-628-3
UN (DOT)
3163
Beilstein/Gmelin
1733202
Beilstein Reference
4-01-00-00123
Canada DSL/NDSL
NDSL
US TSCA
Listed

Properties.
Formula
C2H2F4
Formula mass
102.03
Melting point, °C
-89
Boiling point, °C
-23
Vapor pressure, mmHg
3900 (25 C)
Critical temperature
119
Density
0.01812 g/cm3 (45 C)
Solubility in water
Soluble
Viscosity
0.012 cp (25 C)
Refractive index
1.2356 (20 C)
Partition coefficient, pKow
0.44
Heat of vaporization
22.0 kJ/mol

Hazards and Protection.
Protection
Wear appropriate protective gloves, clothing and goggles.
Respirators
Wear positive pressure self-contained breathing apparatus (SCBA).
Small spills/leaks
Prevent any contact with the spilled material. Stop leak if you can do it without risk. Do not direct water at spill or source of leak. If possible, turn leaking containers so that gas escapes rather than liquid. Allow substance to evaporate and vntilate the area.

Fire.
Flash Point,°C
-64
Fire fighting
Use extinguishing agent suitable for type of surrounding fire.
Fire potential
May burn but does not ignite readily
Hazards
Vapors from liquefied gas are initially heavier than air and spread along ground.
Combustion products
Fire may produce irritating, corrosive and/or toxic gases.

Health.
Exposure effects
   Ingestion
Unlikely to occur.
   Inhalation
Vapors may cause dizziness or asphyxiation without warning.
   Skin
Contact with gas or liquefied gas may cause burns, severe injury and/or frostbite.
   Eyes
See Skin.

First aid
 
   Ingestion
Seek medical assistance.
   Inhalation
Move victim to fresh air. Apply artificial respiration if victim is not breathing. Administer oxygen if breathing is difficult.
   Skin
Remove and isolate contaminated clothing and shoes. In case of contact with liquefied gas, thaw frosted parts with lukewarm water.

Transport.
UN number
3163
Response guide