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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
    • Triple point temperature (Crystal 1, Liquid, and Gas)
      37 experimental data points
    • Triple point temperature (Crystal 2, Crystal 1, and Gas)
      5 experimental data points
  • Normal boiling temperature (Liquid and Gas)
    • Critical temperature (Liquid and Gas)
      28 experimental data points
      • Critical pressure (Liquid and Gas)
        26 experimental data points
        • Boiling temperature (Liquid in equilibrium with Gas) as a function of Pressure
          Pressure from 11.6961 kPa to 4599.2 kPa
          • Phase boundary pressure
            • Phase boundary pressure (Liquid in equilibrium with Gas) as a function of Temperature
              Temperature from 90.6942 K to 190.564 K
              50 experimental data points
            • Phase boundary pressure (Crystal 1 in equilibrium with Gas) as a function of Temperature
              Temperature from 49.55 K to 90.686 K
              28 experimental data points
            • Phase boundary pressure (Crystal 1 in equilibrium with Liquid) as a function of Temperature
              Temperature from 90.6861 K to 260.852 K
              47 experimental data points
          • Critical density (Liquid and Gas)
            20 experimental data points
            • Density
              • Density (Gas in equilibrium with Liquid) as a function of Temperature
                Temperature from 90.6942 K to 190.564 K
                50 experimental data points
              • Density (Liquid in equilibrium with Gas) as a function of Temperature
                Temperature from 90.6942 K to 190.564 K
                50 experimental data points
              • Density (Gas) as a function of Temperature and Pressure
                Temperature from 90.6942 K to 625 K
                Pressure from 1 kPa to 4599.2 kPa
                50 experimental data points
              • Density (Liquid) as a function of Temperature and Pressure
                Temperature from 90.6942 K to 190.564 K
                Pressure from 1 kPa to 1000000 kPa
                50 experimental data points
            • Isobaric coefficient of expansion
              • Isobaric coefficient of expansion (Liquid) as a function of Temperature and Pressure
                Temperature from 90.6942 K to 190.564 K
                Pressure from 1 kPa to 1000000 kPa
              • Isobaric coefficient of expansion (Gas) as a function of Temperature and Pressure
                Temperature from 90.6942 K to 625 K
                Pressure from 1 kPa to 4599.2 kPa
            • Isothermal compressibility
              • Isothermal compressibility (Liquid) as a function of Temperature and Pressure
                Temperature from 90.6942 K to 190.564 K
                Pressure from 1 kPa to 1000000 kPa
              • Isothermal compressibility (Gas) as a function of Temperature and Pressure
                Temperature from 90.6942 K to 625 K
                Pressure from 1 kPa to 4599.2 kPa
            • Thermal pressure coefficient
              • Thermal pressure coefficient (Liquid) as a function of Temperature and Pressure
                Temperature from 90.6942 K to 190.564 K
                Pressure from 1 kPa to 1000000 kPa
              • Thermal pressure coefficient (Gas) as a function of Temperature and Pressure
                Temperature from 90.6942 K to 625 K
                Pressure from 1 kPa to 4599.2 kPa
            • 2nd virial coefficient (Gas) as a function of Temperature
              Temperature from 90.6942 K to 625 K
              50 experimental data points
              • 3rd virial coefficient (Gas) as a function of Temperature
                Temperature from 90.6942 K to 625 K
                45 experimental data points
                • Enthalpy of phase transition
                  • Enthalpy of phase transition (Crystal 1 to Liquid in equilibrium with Gas)
                    5 experimental data points
                  • Enthalpy of phase transition (Crystal 2 to Crystal 1 in equilibrium with Gas)
                    4 experimental data points
                • Enthalpy of vaporization or sublimation
                  • Enthalpy of vaporization or sublimation (Liquid to Gas) as a function of Temperature
                    Temperature from 90.6942 K to 190.564 K
                    13 experimental data points
                  • Enthalpy of vaporization or sublimation (Crystal 1 to Gas) as a function of Temperature
                    Temperature from 49.55 K to 90.686 K
                • Heat capacity at saturation pressure
                  • Heat capacity at saturation pressure (Crystal 2 in equilibrium with Gas) as a function of Temperature
                    Temperature from 6 K to 18.752 K
                    48 experimental data points
                  • Heat capacity at saturation pressure (Crystal 1 in equilibrium with Gas) as a function of Temperature
                    Temperature from 20.509 K to 90.686 K
                    31 experimental data points
                  • Heat capacity at saturation pressure (Liquid in equilibrium with Gas) as a function of Temperature
                    Temperature from 90.6942 K to 190.4 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 5000 K
                    42 experimental data points
                  • Heat capacity at constant pressure (Gas) as a function of Temperature and Pressure
                    Temperature from 90.6942 K to 625 K
                    Pressure from 1 kPa to 4599.2 kPa
                    50 experimental data points
                  • Heat capacity at constant pressure (Liquid) as a function of Temperature and Pressure
                    Temperature from 90.6942 K to 190.564 K
                    Pressure from 1 kPa to 1000000 kPa
                    50 experimental data points
                • Enthalpy
                  • Enthalpy (Crystal 2 in equilibrium with Gas) as a function of Temperature
                    Temperature from 6 K to 18.752 K
                  • Enthalpy (Ideal Gas) as a function of Temperature
                    Temperature from 50 K to 5000 K
                • Entropy
                  • Entropy (Crystal 2 in equilibrium with Gas) as a function of Temperature
                    Temperature from 6 K to 18.752 K
                  • Entropy (Ideal Gas) as a function of Temperature and Pressure
                    Temperature from 50 K to 5000 K
                  • Entropy (Liquid in equilibrium with Gas) as a function of Temperature
                    Temperature from 90.6942 K to 190.564 K
                • Adiabatic compressibility
                  • Adiabatic compressibility (Liquid) as a function of Temperature and Pressure
                    Temperature from 90.6942 K to 190.564 K
                    Pressure from 1 kPa to 1000000 kPa
                  • Adiabatic compressibility (Gas) as a function of Temperature and Pressure
                    Temperature from 90.6942 K to 625 K
                    Pressure from 1 kPa to 4599.2 kPa
                • Pressure coefficient of enthalpy (Liquid) as a function of Temperature and Pressure
                  Temperature from 90.6942 K to 190.564 K
                  Pressure from 1 kPa to 1000000 kPa
                  • Joule-Thomson coefficient (Gas) as a function of Temperature and Pressure
                    Temperature from 90.6942 K to 625 K
                    Pressure from 1 kPa to 4599.2 kPa
                    • Speed of sound
                      • Speed of sound (Liquid in equilibrium with Gas) as a function of Temperature
                        Temperature from 90.6942 K to 190.564 K
                        50 experimental data points
                      • Speed of sound (Gas in equilibrium with Liquid) as a function of Temperature
                        Temperature from 90.6942 K to 190.564 K
                        44 experimental data points
                      • Speed of sound (Liquid) as a function of Temperature and Pressure
                        Temperature from 90.6942 K to 190.564 K
                        Pressure from 1 kPa to 1000000 kPa
                        50 experimental data points
                      • Speed of sound (Gas) as a function of Temperature and Pressure
                        Temperature from 90.6942 K to 625 K
                        Pressure from 1 kPa to 4599.2 kPa
                        50 experimental data points
                    • Refractive index (Liquid) as a function of Wavelength, Temperature, and Pressure
                      Wavelength from 488 nm to 632.8 nm
                      Temperature from 90.688 K to 189.416 K
                      50 experimental data points
                      • Surface tension (Liquid in equilibrium with Gas) as a function of Temperature
                        Temperature from 90.6942 K to 190.564 K
                        48 experimental data points
                        • Viscosity
                          • Viscosity (Liquid in equilibrium with Gas) as a function of Temperature
                            Temperature from 90.6942 K to 190.4 K
                            31 experimental data points
                          • Viscosity (Gas) as a function of Temperature and Pressure
                            Temperature from 90.6942 K to 625 K
                            Pressure from 0.1 kPa to 4599.2 kPa
                            50 experimental data points
                          • Viscosity (Liquid) as a function of Temperature and Pressure
                            Temperature from 90.6942 K to 190.564 K
                            Pressure from 0.1 kPa to 100000 kPa
                            158 experimental data points
                        • Thermal conductivity
                          • Thermal conductivity (Gas) as a function of Temperature and Pressure
                            Temperature from 90.6942 K to 625 K
                            Pressure from 1 kPa to 4599.2 kPa
                            50 experimental data points
                          • Thermal conductivity (Liquid) as a function of Temperature and Pressure
                            Temperature from 90.6942 K to 190.564 K
                            Pressure from 1 kPa to 1000000 kPa
                            304 experimental data points
                          • Thermal conductivity (Liquid in equilibrium with Gas) as a function of Temperature
                            Temperature from 90.6942 K to 190.4 K
                            5 experimental data points
                        • Enthalpy of formation (Gas)
                          2 experimental data points
                           
                           
                           
                           
                           
                           
                           
                           
                          Compound Information 
                           
                           
                           
                           
                           
                          Name: methane
                          Formula: CH4
                          Molar Mass: 16.043
                          Image of methane