Genetron® AZ-50(R507) is a HFC azeotrope which is non-ozone depleting and contains HFC-125 and HFC-143a. It has been primarily designed to replace R-502 in low and medium temperature commercial refrigeration applications such as supermarket display cases and ice machines

 
 
 
Pentafluoroethane
Trifluoroethane
CHF2CF3 /
CH3CF3
Substitutes
R-22 and R-502
ASHRAE number
R-507
Molecular Weight
98.9
Boiling Point @ 1 Atm. (°F)
-52.1
Freezing Point @ 1 Atm. (°F)
-178
Critical Temperature (°F)
160
Critical Pressure (psi a)
550
Saturated Liquid Density @ 86°F (lb/ft³)
63.9
Specific Heat of Liquid @ 86°F (Btu/lb.°F)
0.38
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
 
 
   
'

@ 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