Genetron® 134a, a HFC, is a refrigerant to replace CFC-12 in mobile air conditioning and in residential, commercial and industrial refrigeration systems. It is also used as a blowing agent in rigid foam insulation.

 
 
 
Tetraflouroethane
CF2CH2F
Substitutes
R-12
ASHRAE number
R-134a
Molecular Weight
102.03
Boiling Point @ 1 Atm. (°F)
-15.1
Freezing Point @ 1 Atm. (°F)
-141.9
Critical Temperature (°F)
214
Critical Pressure (psi a)
590
Saturated Liquid Density @ 86°F (lb/ft³)
74.13
Specific Heat of Liquid @ 86°C (Btu/lb °F)
0.35
Specific Heat of Vapor @
Constant Pressure (Cp) @
86°F and 1 Atm (Btu/lb °F)
0.21
Flammable range, % vol. in air
(Based on ASHRAE standard 34
with Match Ignition)++
None
ANSI/ASHRAE Standard 34-1992
Safety Group Classification
A1
 
 
   
1:

@0.2 Atm pressure
 
':
 Preliminary information based on estimated properties
 
*:
 Bubble point temperature
 
+:
Upper and lower vapor flammability (Vol. %)
 
++:
 ASTM E681-85 Match ignition ambient conditions
 
+++: N.C. Not Classified
   
°:
 @ -30°F