Genetron® 408A

An interim replacement for retrofitting low-and medium-temperature commercial refrigeration systems.

Related TDS/SDS

General Information

  • ASHRAE #R-408A
  • ClassHFC
  • Refrigerant TypeBlend
  • SubstitutesR-502, HCFC-22
  • ContainsHFC-125 (7%), HFC-143a (46%), HCFC-22 (47%)
  • GlideLow
  • NotesWorks 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 NamePentafluoroethane, Trifluoroethane, Chlorodifluoromethane
  • Chemical NotationCF3CHF2, CF3CH3, CHClF2
  • 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/ft3)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 ClassificationA1