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Genetron
®
408A
Genetron
®
408A
An interim replacement for retrofitting low-and medium-temperature commercial refrigeration systems.
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Related TDS/SDS
General Information
ASHRAE #
R-408A
Class
HFC
Refrigerant Type
Blend
Substitutes
R-502, HCFC-22
Contains
HFC-125 (7%), HFC-143a (46%), HCFC-22 (47%)
Glide
Low
Notes
Works well as R-502 substitute. Higher discharge temperatures than R-502. Use either synthetic oil or blends of AB/MO with AB>50%.
Physical Properties
Chemical Name
Pentafluoroethane, Trifluoroethane, Chlorodifluoromethane
Chemical Notation
CF
3
CHF
2
, CF
3
CH
3
, CHClF
2
Molecular Weight (lbm/lbmol)
87.7
Boiling Point @ 1 Atm, (°F)
-48.2
Critical Temperature (°F) (ASTM D-1321)
181.65
Critical Pressure* (psia)
622.87
Saturated Liquid Density @ 86°F, (lb/ft
3
)
64.8
Specific Heat of Liquid @ 86°F, (Btu/lb•°F)
0.36
Specific Heat of Vapor @ Constant Pressure* (Cp), @ 86° 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