R452A Opteon™ XP44

R-452A (Opteon™ XP44)

Lower GWP (2140) A1 safety class alternative to R-404A, R-507A for transport and low temperature hermetic compressor refrigeration applications.

Features and Benefits

  • A1 (non-flammable) safety class – Ideal retrofit candidate for higher GWP refrigerants in transport and low temperature hermetic compressor refrigeration applications.
  • 45% lower GWP than R-404A –More sustainable and compliant with F-Gas legislation.
  • Similar compressor discharge temperatures to R-404A – Ideal for applications where compressor discharge temperatures are critical.
  • Approved by many equipment manufacturers – Large choice of equipment available.

Packaging and Supply

  • Climalife supply R-452A in 10kg or 53kg returnable cylinders.
  • Conforms to AHRI 700-2016 specifications.

Why Choose Climalife?

Climalife are a key player in the distribution of refrigerants and other climate control products, with a nationwide distribution network and product knowledge that is second to none.

How does R-452A compare to R-404A?

R-452A has a similar performance to R‑404A and is especially suited to cases where the compressor discharge temperature is a critical operating parameter e.g. transport refrigeration and some low temperature applications using hermetic compressors.

Full theoretical performance comparisons at customer specified conditions are available from Climalife on request.




HFC-32/HFC-125/R-1234yf - 11/59/30% by mass

Chemical Formula



Molecular Mass


Boiling Point (at 1 Atmosphere)


Dew Point (at 1 Atmosphere)


Saturated Liquid Density at 25°C

1125.5 kg/m³

Saturated Vapour Density at 1.013bar

5.728 kg/m³

Saturated Liquid Pressure at 25°C

13.111 bar

Saturated Liquid Pressure at 50°C

24.017 bar

Critical Temperature


Critical Pressure

40.144 bar

Critical Density

506.7 kg/m³

Critical Volume

0.00197 m³/kg

Latent Heat of vapourisation at 1.013bar

195.8 kJ/kg

Thermal Conductivity of Liquid at 25°C

66.9 mW/(m.K)

Thermal Conductivity of Vapour at 25°C & 1.013bar

13.8 mW/(m.K)

Surface tension at 25°C

4.73 mN/m

Viscosity of Liquid at 25°C

0.135 mPa.s

Viscosity of Vapour at 25°C & 1.013bar

0.013 mPa.s

Specific heat of liquid at 25°C

1.471 kJ/(kg.K)

Specific heat of vapour at 25°C and 1.013bar

0.8347 kJ/(kg.K)

Cp/Cv ratio at 25° and 1.013 bar


Lower Fammability Limit (LFL) in air (EN 378)


Flash Point


ISO 817 / ASHRAE 34 Safety Classification


PED Fluid Group


Ozone Depletion Potential (ODP)


Global Warming Potential (GWP) IPCC AR4/IPCC AR5


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