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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)
    5 experimental data points
    • Normal boiling temperature (Liquid and Gas)
      • Critical temperature (Liquid and Gas)
        5 experimental data points
        • Critical pressure (Liquid and Gas)
          4 experimental data points
          • Boiling temperature (Liquid in equilibrium with Gas) as a function of Pressure
            Pressure from 0.000677517 kPa to 4009.8 kPa
            • Phase boundary pressure (Liquid in equilibrium with Gas) as a function of Temperature
              Temperature from 132.4 K to 418.09 K
              49 experimental data points
              • Critical density (Liquid and Gas)
                3 experimental data points
                • Density
                  • Density (Liquid in equilibrium with Gas) as a function of Temperature
                    Temperature from 132.4 K to 418.09 K
                    50 experimental data points
                  • Density (Liquid) as a function of Temperature and Pressure
                    Temperature from 132.4 K to 418.09 K
                    Pressure from 0.05 kPa to 50000 kPa
                    50 experimental data points
                  • Density (Gas) as a function of Temperature and Pressure
                    Temperature from 132.4 K to 550 K
                    Pressure from 0.05 kPa to 4020 kPa
                    17 experimental data points
                  • Density (Gas in equilibrium with Liquid) as a function of Temperature
                    Temperature from 132.4 K to 418.09 K
                    3 experimental data points
                • Isobaric coefficient of expansion
                  • Isobaric coefficient of expansion (Liquid) as a function of Temperature and Pressure
                    Temperature from 132.4 K to 418.09 K
                    Pressure from 0.05 kPa to 50000 kPa
                  • Isobaric coefficient of expansion (Gas) as a function of Temperature and Pressure
                    Temperature from 132.4 K to 550 K
                    Pressure from 0.05 kPa to 4020 kPa
                • Isothermal compressibility
                  • Isothermal compressibility (Liquid) as a function of Temperature and Pressure
                    Temperature from 132.4 K to 418.09 K
                    Pressure from 0.05 kPa to 50000 kPa
                  • Isothermal compressibility (Gas) as a function of Temperature and Pressure
                    Temperature from 132.4 K to 550 K
                    Pressure from 0.05 kPa to 4020 kPa
                • Thermal pressure coefficient
                  • Thermal pressure coefficient (Liquid) as a function of Temperature and Pressure
                    Temperature from 132.4 K to 418.09 K
                    Pressure from 0.05 kPa to 50000 kPa
                  • Thermal pressure coefficient (Gas) as a function of Temperature and Pressure
                    Temperature from 132.4 K to 550 K
                    Pressure from 0.05 kPa to 4020 kPa
                • 2nd virial coefficient (Gas) as a function of Temperature
                  Temperature from 132.4 K to 550 K
                  4 experimental data points
                  • 3rd virial coefficient (Gas) as a function of Temperature
                    Temperature from 132.4 K to 550 K
                    • Enthalpy of phase transition (Crystal 1 to Liquid in equilibrium with Gas)
                      1 experimental data points
                      • Enthalpy of vaporization or sublimation (Liquid to Gas) as a function of Temperature
                        Temperature from 132.4 K to 418.09 K
                        1 experimental data points
                        • Heat capacity at saturation pressure (Liquid in equilibrium with Gas) as a function of Temperature
                          Temperature from 132.4 K to 417.9 K
                          21 experimental data points
                          • Heat capacity at constant pressure
                            • Heat capacity at constant pressure (Gas) as a function of Temperature and Pressure
                              Temperature from 132.4 K to 550 K
                              Pressure from 0.05 kPa to 4020 kPa
                            • Heat capacity at constant pressure (Ideal Gas) as a function of Temperature
                              Temperature from 50 K to 3000 K
                            • Heat capacity at constant pressure (Liquid) as a function of Temperature and Pressure
                              Temperature from 132.4 K to 418.09 K
                              Pressure from 0.05 kPa to 50000 kPa
                          • Enthalpy
                            • Enthalpy (Liquid in equilibrium with Gas) as a function of Temperature
                              Temperature from 132.41 K to 409.605 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 132.4 K to 418.09 K
                          • Adiabatic compressibility
                            • Adiabatic compressibility (Liquid) as a function of Temperature and Pressure
                              Temperature from 132.4 K to 418.09 K
                              Pressure from 0.05 kPa to 50000 kPa
                            • Adiabatic compressibility (Gas) as a function of Temperature and Pressure
                              Temperature from 132.4 K to 550 K
                              Pressure from 0.05 kPa to 4020 kPa
                          • Pressure coefficient of enthalpy (Liquid) as a function of Temperature and Pressure
                            Temperature from 132.4 K to 418.09 K
                            Pressure from 0.05 kPa to 50000 kPa
                            • Joule-Thomson coefficient (Gas) as a function of Temperature and Pressure
                              Temperature from 132.4 K to 550 K
                              Pressure from 0.05 kPa to 4020 kPa
                              • Speed of sound
                                • Speed of sound (Liquid in equilibrium with Gas) as a function of Temperature
                                  Temperature from 132.4 K to 418.09 K
                                • Speed of sound (Liquid) as a function of Temperature and Pressure
                                  Temperature from 132.4 K to 418.09 K
                                  Pressure from 0.05 kPa to 50000 kPa
                                • Speed of sound (Gas in equilibrium with Liquid) as a function of Temperature
                                  Temperature from 132.4 K to 418.09 K
                                • Speed of sound (Gas) as a function of Temperature and Pressure
                                  Temperature from 132.4 K to 550 K
                                  Pressure from 0.05 kPa to 4020 kPa
                              • Refractive index (Liquid) as a function of Wavelength, Temperature, and Pressure
                                Temperature from 213.046 K to 264.007 K
                                19 experimental data points
                                • Surface tension (Liquid in equilibrium with Gas) as a function of Temperature
                                  Temperature from 132.4 K to 418.09 K
                                  15 experimental data points
                                  • Viscosity
                                    • Viscosity (Gas) as a function of Temperature and Pressure
                                      Temperature from 132.4 K to 550 K
                                      Pressure from 0.05 kPa to 4020 kPa
                                      7 experimental data points
                                    • Viscosity (Liquid) as a function of Temperature and Pressure
                                      Temperature from 132.4 K to 418.089 K
                                      Pressure from 0.05 kPa to 50000 kPa
                                    • Viscosity (Liquid in equilibrium with Gas) as a function of Temperature
                                      Temperature from 132.4 K to 417.9 K
                                  • Thermal conductivity
                                    • Thermal conductivity (Gas) as a function of Temperature and Pressure
                                      Temperature from 132.4 K to 550 K
                                      Pressure from 0.05 kPa to 4020 kPa
                                    • Thermal conductivity (Liquid in equilibrium with Gas) as a function of Temperature
                                      Temperature from 132.4 K to 417.9 K
                                    • Thermal conductivity (Liquid) as a function of Temperature and Pressure
                                      Temperature from 132.4 K to 418.089 K
                                      Pressure from 0.05 kPa to 50000 kPa
                                  • Enthalpy of formation
                                    • Enthalpy of formation (Gas)
                                      1 experimental data points
                                    • Enthalpy of formation (Liquid)
                                   
                                   
                                   
                                   
                                   
                                   
                                   
                                   
                                  Compound Information 
                                   
                                   
                                   
                                   
                                   
                                  Name: 2-methylpropene
                                  Formula: C4H8
                                  Molar Mass: 56.108
                                  Additional Names: propene, 2-methyl-
                                  2-methyl-1-propene
                                  isobutylene
                                  isobutene
                                  Image of 2-methylpropene