Freon™ 23 (R-23) Refrigerant

A Retrofit Refrigerant for Very Low Temperature Equipment

The Freon™ refrigerant portfolio includes Freon™ 23 (R-23) refrigerant for equipment that needs to maintain very low temperatures (VLT), such as medical freezers and environmental chambers. This hydrofluorocarbon (HFC) retrofit refrigerant is an effective alternative to R-13 and R-503 when temperatures must remain at or below -40 to -73 °C (-40 to -100 °F). Most original equipment manufacturers (OEMs) of systems using R-23 recommend using polyolester (POE) oils. Consult your OEM to determine whether your system requires an oil change or any other system modifications.

Features and Benefits

Freon™ 23 also works when retrofitting existing systems that use R-13 and R-503, sometimes with slight system modifications required. Freon™ 23 is a nonflammable refrigerant that works well in applications where a high compressor discharge temperature is not a concern. Freon™ 23 offers:

  • Similar properties to R-13 and R-502
  • Zero ozone depletion potential
  • An ASHRAE A1 safety classification

For additional information or answers to any questions, please contact us.

Regulations on the long-term use of refrigerants vary by region and application, and may change over time. For the latest information, visit the Regulations page.

If you're looking for a low global warming potential (GWP) alternative, consider Chemours’ portfolio of Opteon™ refrigerants.