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For this compound, WTT contains critically evaluated recommendations for:

  • Triple point temperature (Crystal 1, Liquid, and Gas)
    1 experimental data points
    • Normal boiling temperature (Liquid and Gas)
      • Critical temperature (Liquid and Gas)
        • Critical pressure (Liquid and Gas)
          • Boiling temperature (Liquid in equilibrium with Gas) as a function of Pressure
            Pressure from 0.000822292 kPa to 4226.92 kPa
            • Phase boundary pressure (Liquid in equilibrium with Gas) as a function of Temperature
              Temperature from 196.6 K to 574 K
              21 experimental data points
              • Critical density (Liquid and Gas)
                • Density
                  • Density (Liquid in equilibrium with Gas) as a function of Temperature
                    Temperature from 196.6 K to 574 K
                    10 experimental data points
                  • Density (Gas) as a function of Temperature and Pressure
                    Temperature from 280 K to 570 K
                    Pressure from 0.0008 kPa to 770.001 kPa
                  • Density (Gas in equilibrium with Liquid) as a function of Temperature
                    Temperature from 460.774 K to 574 K
                • Enthalpy of vaporization or sublimation (Liquid to Gas) as a function of Temperature
                  Temperature from 196.6 K to 574 K
                  • Heat capacity at saturation pressure (Liquid in equilibrium with Gas) as a function of Temperature
                    Temperature from 196.6 K to 560 K
                    13 experimental data points
                    • Heat capacity at constant pressure (Ideal Gas) as a function of Temperature
                      Temperature from 50 K to 1500 K
                      • Enthalpy
                        • Enthalpy (Liquid in equilibrium with Gas) as a function of Temperature
                          Temperature from 196.6 K to 560 K
                        • Enthalpy (Ideal Gas) as a function of Temperature
                          Temperature from 50 K to 1500 K
                      • Entropy
                        • Entropy (Ideal Gas) as a function of Temperature and Pressure
                          Temperature from 50 K to 1500 K
                        • Entropy (Liquid in equilibrium with Gas) as a function of Temperature
                          Temperature from 196.6 K to 560 K
                      • Refractive index (Liquid in equilibrium with Gas) as a function of Wavelength and Temperature
                        1 experimental data points
                        • Viscosity
                          • Viscosity (Gas) as a function of Temperature and Pressure
                            Temperature from 380 K to 860 K
                          • Viscosity (Liquid in equilibrium with Gas) as a function of Temperature
                            Temperature from 270 K to 570 K
                        • Thermal conductivity
                          • Thermal conductivity (Gas) as a function of Temperature and Pressure
                            Temperature from 380 K to 860 K
                          • Thermal conductivity (Liquid in equilibrium with Gas) as a function of Temperature
                            Temperature from 200 K to 510 K
                        • Enthalpy of formation
                          • Enthalpy of formation (Gas)
                          • Enthalpy of formation (Liquid)
                            4 experimental data points
                         
                         
                         
                         
                         
                         
                         
                         
                        Compound Information 
                         
                         
                         
                         
                         
                        Name: (E)-2-butenal
                        Formula: C4H6O
                        Molar Mass: 70.091
                        Additional Names: (E)-crotonaldehyde
                        trans-2-butenal
                        2-butenal, (E)-
                        trans-crotonaldehyde
                        Image of (E)-2-butenal