Frogen® 404A

Frogen Frogen® 404A (HFC-404A) is a non-ozone depleting compound designed to serve as a long-term alternative to Frogen® 502 (CFC-502) and Frogen® 22 (HCFC-22) in low and medium temperature commercial refrigeration applications. Applications where Frogen® 404A is a suitable retrofi t refrigerant include supermarket freezer cases, reach-in coolers, display cases, transport refrigeration and ice machines.

Frogen® 404A has been designed as a substitute to Frogen® 502, but it is not a drop-in replacement. Mineral oils and alkylbenzene lubricants, which have been used traditionally with Frogen® 502, are immiscible with Frogen® 404A. Service technicians should consult the original equipment manufacturer for the recommended lubricants.

Frogen® 404A is a blend. For this reason it is essential that systems be charged only with liquid from the cylinder, not vapour. Vapour-charging Frogen® 404A may result in the wrong refrigerant composition and could damage the system.

Physical and Chemical Properties
Chemical Name Pentafluoroethane,
Chemical Formula CH2FCF3
Molecular Weight 102.02 g/mol
Form Liquefied Gas
Color Colorless
Melting Point -101 °C (-150 °F)
Boiling PoinT at 1.013 -26.2 °C (-15.1 °F)
Vapor Pressure 5,915 hPa at 21.1 °C (70.0 °F)