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For this compound, WTT contains critically evaluated recommendations for:
(Please note that if more than 50 points are used for regression, only the 50 most-constraining points are reported)

  • Triple point temperature (Crystal 1, Liquid, and Gas)
    3 experimental data points
    • Normal boiling temperature (Liquid and Gas)
      • Critical temperature (Liquid and Gas)
        27 experimental data points
        • Critical pressure (Liquid and Gas)
          23 experimental data points
          • Boiling temperature (Liquid in equilibrium with Gas) as a function of Pressure
            Pressure from 0.389739 kPa to 4059.28 kPa
            • Phase boundary pressure (Liquid in equilibrium with Gas) as a function of Temperature
              Temperature from 169.85 K to 374.21 K
              50 experimental data points
              • Critical density (Liquid and Gas)
                12 experimental data points
                • Density
                  • Density (Liquid in equilibrium with Gas) as a function of Temperature
                    Temperature from 169.85 K to 374.21 K
                    50 experimental data points
                  • Density (Gas in equilibrium with Liquid) as a function of Temperature
                    Temperature from 169.85 K to 374.21 K
                    50 experimental data points
                  • Density (Gas) as a function of Temperature and Pressure
                    Temperature from 169.85 K to 455 K
                    Pressure from 0.07 kPa to 4059 kPa
                    50 experimental data points
                  • Density (Liquid) as a function of Temperature and Pressure
                    Temperature from 169.85 K to 374.21 K
                    Pressure from 0.07 kPa to 70000 kPa
                    50 experimental data points
                • Isobaric coefficient of expansion
                  • Isobaric coefficient of expansion (Liquid) as a function of Temperature and Pressure
                    Temperature from 169.85 K to 374.21 K
                    Pressure from 0.07 kPa to 70000 kPa
                  • Isobaric coefficient of expansion (Gas) as a function of Temperature and Pressure
                    Temperature from 169.85 K to 455 K
                    Pressure from 0.07 kPa to 4059 kPa
                • Isothermal compressibility
                  • Isothermal compressibility (Liquid) as a function of Temperature and Pressure
                    Temperature from 169.85 K to 374.21 K
                    Pressure from 0.07 kPa to 70000 kPa
                  • Isothermal compressibility (Gas) as a function of Temperature and Pressure
                    Temperature from 169.85 K to 455 K
                    Pressure from 0.07 kPa to 4059 kPa
                • Thermal pressure coefficient
                  • Thermal pressure coefficient (Liquid) as a function of Temperature and Pressure
                    Temperature from 169.85 K to 374.21 K
                    Pressure from 0.07 kPa to 70000 kPa
                  • Thermal pressure coefficient (Gas) as a function of Temperature and Pressure
                    Temperature from 169.85 K to 455 K
                    Pressure from 0.07 kPa to 4059 kPa
                • 2nd virial coefficient (Gas) as a function of Temperature
                  Temperature from 169.85 K to 455 K
                  41 experimental data points
                  • 3rd virial coefficient (Gas) as a function of Temperature
                    Temperature from 169.85 K to 455 K
                    18 experimental data points
                    • Enthalpy of vaporization or sublimation (Liquid to Gas) as a function of Temperature
                      Temperature from 169.85 K to 374.21 K
                      25 experimental data points
                      • Heat capacity at saturation pressure (Liquid in equilibrium with Gas) as a function of Temperature
                        Temperature from 169.85 K to 374.1 K
                        50 experimental data points
                        • Heat capacity at constant pressure
                          • Heat capacity at constant pressure (Ideal Gas) as a function of Temperature
                            Temperature from 50 K to 3000 K
                            41 experimental data points
                          • Heat capacity at constant pressure (Gas) as a function of Temperature and Pressure
                            Temperature from 169.85 K to 455 K
                            Pressure from 0.07 kPa to 4059 kPa
                            50 experimental data points
                          • Heat capacity at constant pressure (Liquid) as a function of Temperature and Pressure
                            Temperature from 169.85 K to 374.21 K
                            Pressure from 0.07 kPa to 70000 kPa
                            50 experimental data points
                        • Enthalpy
                          • Enthalpy (Liquid in equilibrium with Gas) as a function of Temperature
                            Temperature from 169.854 K to 356 K
                          • Enthalpy (Ideal Gas) as a function of Temperature
                            Temperature from 50 K to 3000 K
                        • Entropy
                          • Entropy (Ideal Gas) as a function of Temperature and Pressure
                            Temperature from 50 K to 3000 K
                          • Entropy (Liquid in equilibrium with Gas) as a function of Temperature
                            Temperature from 169.85 K to 374.21 K
                        • Adiabatic compressibility
                          • Adiabatic compressibility (Liquid) as a function of Temperature and Pressure
                            Temperature from 169.85 K to 374.21 K
                            Pressure from 0.07 kPa to 70000 kPa
                          • Adiabatic compressibility (Gas) as a function of Temperature and Pressure
                            Temperature from 169.85 K to 455 K
                            Pressure from 0.07 kPa to 4059 kPa
                        • Pressure coefficient of enthalpy (Liquid) as a function of Temperature and Pressure
                          Temperature from 169.85 K to 374.21 K
                          Pressure from 0.07 kPa to 70000 kPa
                          • Joule-Thomson coefficient (Gas) as a function of Temperature and Pressure
                            Temperature from 169.85 K to 455 K
                            Pressure from 0.07 kPa to 4059 kPa
                            39 experimental data points
                            • Speed of sound
                              • Speed of sound (Liquid in equilibrium with Gas) as a function of Temperature
                                Temperature from 169.85 K to 374.21 K
                                23 experimental data points
                              • Speed of sound (Gas in equilibrium with Liquid) as a function of Temperature
                                Temperature from 169.85 K to 374.21 K
                                18 experimental data points
                              • Speed of sound (Gas) as a function of Temperature and Pressure
                                Temperature from 169.85 K to 455 K
                                Pressure from 0.07 kPa to 4059 kPa
                                50 experimental data points
                              • Speed of sound (Liquid) as a function of Temperature and Pressure
                                Temperature from 169.85 K to 374.21 K
                                Pressure from 0.07 kPa to 70000 kPa
                                50 experimental data points
                            • Refractive index (Liquid in equilibrium with Gas) as a function of Wavelength and Temperature
                              Temperature from 286.99 K to 374.169 K
                              40 experimental data points
                              • Surface tension (Liquid in equilibrium with Gas) as a function of Temperature
                                Temperature from 169.85 K to 374.21 K
                                50 experimental data points
                                • Viscosity
                                  • Viscosity (Liquid in equilibrium with Gas) as a function of Temperature
                                    Temperature from 169.85 K to 374.1 K
                                    50 experimental data points
                                  • Viscosity (Gas) as a function of Temperature and Pressure
                                    Temperature from 169.85 K to 455 K
                                    Pressure from 0.07 kPa to 4059 kPa
                                    50 experimental data points
                                  • Viscosity (Liquid) as a function of Temperature and Pressure
                                    Temperature from 169.85 K to 374.21 K
                                    Pressure from 0.07 kPa to 70000 kPa
                                    50 experimental data points
                                • Thermal conductivity
                                  • Thermal conductivity (Gas) as a function of Temperature and Pressure
                                    Temperature from 169.85 K to 455 K
                                    Pressure from 0.02 kPa to 4059 kPa
                                    50 experimental data points
                                  • Thermal conductivity (Liquid in equilibrium with Gas) as a function of Temperature
                                    Temperature from 169.85 K to 374.1 K
                                    50 experimental data points
                                  • Thermal conductivity (Liquid) as a function of Temperature and Pressure
                                    Temperature from 169.85 K to 374.21 K
                                    Pressure from 0.02 kPa to 20000 kPa
                                    50 experimental data points
                                 
                                 
                                 
                                 
                                 
                                 
                                 
                                 
                                Compound Information 
                                 
                                 
                                 
                                 
                                 
                                Name: 1,1,1,2-tetrafluoroethane
                                Formula: C2H2F4
                                Molar Mass: 102.0316128
                                Additional Names: freon 134a
                                1,2,2,2-tetrafluoroethane
                                R-134a
                                norflurane
                                ethane, 1,1,1,2-tetrafluoro-
                                Image of 1,1,1,2-tetrafluoroethane