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Gas Encyclopaedia

This application enables data on many gas molecules to be accessed rapidly.
You can search on a raw chemical formula, chemical name or UN transportation code. The values displayed on this page are extracted from the literature and the proprietary current AIR LIQUIDE Group data.

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1,1,1,2-Tetrafluoroethane (R134A)
H2FC-CF3
1,1,1,2-Tetrafluoroethane (R134A)
CAS Number : 811-97-2
UN3159

;1,1,1,2-Tetrafluoroethane; Freon 134a; Ethane, 1,1,1,2-tetrafluoro-; Halocarbon 134a; 1,2,2,2-Tetrafluoroethane; HFC-134a;
 
Main applications
  • Industries
    Applications

  •  Other industries 
    Tetrafluoroethane (R134A) is a blend component for refrigeration.
    It also a propellant for aerosol and a blowing agent for extruded polystyrene foams.
    It replaces the CFC R12 (dichlorodifluoromethane) and in few years the HCFC R22 (chlorodifluoromethane).
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Gas Properties
Molecular Weight
  • Molecular weight  : 102.03 g/mol
Solid phase
  • Melting point (1.013 bar) : -101 °C
Liquid phase
  • Liquid density (1.013 bar and 25 °C (77 °F)) : 1206 kg/m3
  • Boiling point (1.013 bar) : -26.6 °C
  • Latent heat of vaporization (1.013 bar at boiling point) : 215.9 kJ/kg
  • Vapor pressure (at 20 °C or 68 °F) : 5.7 bar
  • Vapor pressure (at 5 °C or 41 °F) : 3.5 bar
  • Vapor pressure (at 15 °C or 59 °F) : 4.9 bar
  • Vapor pressure (at 50 °C or 122 °F) : 13.2 bar
Critical point
  • Critical temperature  : 100.9 °C
  • Critical pressure  : 40.6 bar
  • Critical density  : 512 kg/m3
Triple point
  • Triple point temperature  : -103.3 °C
Gaseous phase
  • Gas density (1.013 bar at boiling point) : 5.28 kg/m3
  • Gas density (1.013 bar and 15 °C (59 °F)) : 4.25 kg/m3
  • Compressibility Factor (Z) (1.013 bar and 15 °C (59 °F)) : 1
  • Specific gravity (air = 1) (1.013 bar and 15 °C (59 °F)) : 3.25
  • Specific volume (1.013 bar and 15 °C (59 °F)) : 0.235 m3/kg
  • Heat capacity at constant pressure (Cp) (1.013 bar and 25 °C (77 °F)) : 0.087 kJ/(mol.K)
Miscellaneous
  • Solubility in water (1 bar and 25 °C (77 °F)) : 0.21 vol/vol
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Major Hazards
  • UN Number : UN3159
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Selection of the units
You can choose the units in which the values are displayed. By default, SI units are selected.

 

  • Quantity
    Units

 

  • Mass
    kg lb g
  • Volume
    m3 ft3 l
  • Pressure
    bar psi kPa
  • Temperature
    °C °F K °R
  • Density
    kg/m3 lb/ft3 mol/l (lb-mol)/ft3
  • Enthalpy
    kJ/kg Btu/lb kJ/mol kcal/kg kcal/mol Btu/lb-mol
  • Heat Capacity
    kJ/(mol.K) Btu/(lb.°F) kJ/(kg.K) Btu/(lb-mol.°F) kcal/(kg.K)
    cal/(mol.K) J/(mol.K)
  • Viscosity
    Poise lb/(ft.s) µPa.s Pa.s
  • Thermal Conductivity
    mW/(m.K) Btu.ft/(h.ft2.°F) cal.cm/(h.cm2.°C) W/(m.K)
    (cal.cm)/(s.cm2.°C)
  • Concentration
    vol % vol ppm vol/vol
  • Solubility
    vol/vol lb/ft3 (lb-mol)/ft3 mol/l g/l
  • Specific volume
    m3/kg ft3/lb l/mol ft3/lb-mol

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