Genetron® 404A

A non-ozone-depleting replacement for R-502 in low- and medium-temperature commercial refrigeration systems.

Related TDS/SDS

General Information

  • ASHRAE #R-404A
  • ClassHFC
  • Refrigerant TypeBlend
  • Typical LubricantPOE
  • SubstitutesR-502, HCFC-22
  • ContainsHFC-125 (44%), HFC-143a (52%), HFC-134a (4%)
  • GlideLow
  • NotesMost widely used low- and medium-temperature replacement.

Physical Properties

  • Chemical NamePentafluoroethane Trifluoroethane Tetrafluoroethane
  • Chemical NotationCF3CHF3, CF3CH3, CFcCH2F
  • Molecular Weight (lbm/lbmol)97.6
  • Boiling Point @ 1 Atm, (°F)-51.2
  • Critical Temperature (°F) (ASTM D-1321)161.88
  • Critical Pressure* (psia)540.82
  • Saturated Liquid Density @ 86°F, (lb/ft3)63.6
  • Specific Heat of Liquid @ 86°F, (Btu/lb•°F)0.38
  • Specific Heat of Vapor @ Constant Pressure* (Cp), @ 86° and 1 Atm, (Btu/lb•°F)0.19
  • Flammable range, %vol. in air (Based on ASHRAE Standard 34 with Match Ignition)None
  • ANSI/ASHRAE Standard 34-1992 Safety Group ClassificationA1