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R-134a Refrigerant

R-134a Refrigerant

R-134a (1,1,1,2-tetrafluoroethane) is a clear, colorless gas with a faint ethereal odor. As a non-ozone-depleting, environmentally safer single component HFC refrigerant, it is a very efficient and safe replacement for R-12 in several air-conditioning and refrigeration applications. R-134a possesses similar energy efficiency and capacity characteristics as R-12, has an intrinsically low toxicity, and is recognized as a superior long-term solution in many applications. It can be used in automotive air conditioning, appliances, small stationary equipment, medium temperature supermarket cases, and industrial and commercial chillers.

Physical Properties

Molecular Formula CH2FCF3
Molecular Weight 102.03
Boiling Point at 1 atm (101.3 kPa) -26.1°C
Critical Temperature 101.1°C
Critical Pressure 4.07 MPa
Critical Density 0.512 g/cm3
Liquid Density at 25°C 1.207 g/cm3
Liquid Heat Capacity at 25°C 1.51 kJ/kg·°C
Heat of Vaporization at Boiling Point 215.0 kJ/kg
GWP 0.129

Packaging and Storage

R-134a is available in disposable steel cylinders (13.6kg/30lb, 22.7kg/50lb) and returnable steel cylinders (400kg/400L, 800kg/800L, 1000kg/1000L, 950kg/926L). The filling ratio of R-134a is not more than 1.04kg/L.
Cylinders should be stored in cool, dry and well-ventilated area away from sunlight and rain.

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