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R-409A Refrigerant

R-409A Refrigerant

R-409A is a ternary blend of HCFC-22, HCFC-124 and HCFC-142b, and should always be charged in liquid phase. It is used as a replacement for CFC-12 in low and medium temperature refrigeration systems. Systems where R-409A is suitable for use include supermarket display cases, walk-in coolers, beverage dispensers, vending machines, water coolers, domestic and commercial refrigerators and freezers, and transport refrigeration.

Physical Properties

Molecular Weight 97.4
Boiling Point at 1 atm (101.3 kPa) -35.3°C
Critical Temperature 109.4°C
Critical Pressure 4640.9 kPa
Liquid Density at 30°C 1204.6 kg/m3
Liquid Heat Capacity at 30°C 0.29 kJ/(kg·°C)
Vapor Heat Capacity at Constant Pressure
at 30°C and 1 atm (101.3 kPa)
0.17 kJ/(kg·°C)
Heat of Vaporization at Boiling Point 220.0 kJ/kg
ODP 0.039
GWP 0.29

Packaging and Storage

R-409A is available in disposable steel cylinders (13.6kg/30lb), returnable steel cylinders (980kg/926L) and isotanks. The filling ratio is not more than 1.06kg/L.

Cylinders should be stored in cool, dry and well-ventilated area away from sunlight and rain.

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