Genetron® 409A is an interim HCFC blend used as a replacement for R-12 in refrigeration systems.

 
 
 
Chlorodifluoromethane,
Chlorotetrafluroethane and
Chlorodifluoroethane
CHCIF2 /
CF3CHCIF /
CH3CCIF2
Substitutes
R-12
ASHRAE number
R-409A
Molecular Weight
97.4
Boiling Point @ 1 Atm. (°F)
-31.6*
Freezing Point @ 1 Atm. (°F)
-
Critical Temperature (°F)
228.9
Critical Pressure (psi a)
673.0
Saturated Liquid Density @ 86°F (lb/ft³)
75.2
Specific Heat of Liquid @ 86°C (Btu/lb °F)
0.29
Specific Heat of Vapor @
Constant Pressure (Cp) @
86°F and 1 Atm (Btu/lb °F)
0.17
Flammable range, % vol. in air
(Based on ASHRAE standard 34
with Match Ignition)++
None
ANSI/ASHRAE Standard 34-1992
Safety Group Classification
A1/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