Compound Information 

Name: heptane, 3-ethyl-2,4,5-trimethyl-
Formula: C12H26
Molar Mass: 170.34
Image of heptane, 3-ethyl-2,4,5-trimethyl-
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Property Availability 

For this compound, WTT contains critically evaluated recommendations for:

  • 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 2.33086e-006 kPa to 1964.81 kPa
          • Phase boundary pressure (Liquid in equilibrium with Gas) as a function of Temperature
            Temperature from 200 K to 653 K
            • Critical density (Liquid and Gas)
              • Density
                • Density (Liquid in equilibrium with Gas) as a function of Temperature
                  Temperature from 190 K to 653 K
                • Density (Gas in equilibrium with Liquid) as a function of Temperature
                  Temperature from 524.053 K to 653 K
              • Enthalpy of vaporization or sublimation (Liquid to Gas) as a function of Temperature
                Temperature from 255 K to 653 K
                • Heat capacity at saturation pressure (Liquid in equilibrium with Gas) as a function of Temperature
                  Temperature from 250 K to 639.94 K
                  • Heat capacity at constant pressure (Ideal Gas) as a function of Temperature
                    Temperature from 200 K to 1000 K
                    • Enthalpy
                      • Enthalpy (Liquid in equilibrium with Gas) as a function of Temperature
                        Temperature from 250 K to 639.94 K
                      • Enthalpy (Ideal Gas) as a function of Temperature
                        Temperature from 200 K to 1000 K
                    • Entropy
                      • Entropy (Ideal Gas) as a function of Temperature and Pressure
                        Temperature from 200 K to 1000 K
                      • Entropy (Liquid in equilibrium with Gas) as a function of Temperature
                        Temperature from 250 K to 639.94 K
                    • Viscosity
                      • Viscosity (Gas) as a function of Temperature and Pressure
                        Temperature from 470 K to 970 K
                      • Viscosity (Liquid in equilibrium with Gas) as a function of Temperature
                        Temperature from 270 K to 650 K
                    • Thermal conductivity
                      • Thermal conductivity (Gas) as a function of Temperature and Pressure
                        Temperature from 470 K to 970 K
                      • Thermal conductivity (Liquid in equilibrium with Gas) as a function of Temperature
                        Temperature from 200 K to 580 K
                    • Enthalpy of formation
                      • Enthalpy of formation (Gas)
                      • Enthalpy of formation (Liquid)

                    About WTT 

                    NIST/TRC Web Thermo Tables (WTT)
                    NIST Standard Reference Subscription Database 3 - Professional Edition
                    Version 2-2012-1-Pro

                    This web application provides access to a collection of critically evaluated thermodynamic property data for pure compounds with a primary focus on organics. These data were generated through dynamic data analysis, as implemented in the NIST ThermoData Engine software package [1, 2, 3, 4, 5, 6]. Some critically evaluated data from the historical TRC Thermodynamic Tables archive [7, 8] are included, also. As of May 2012, the Professional Edition contains information on 28432 compounds and total of 531486 evaluated data points. The properties covered by both versions (32 total) are described in Properties and Implemented Models.

                    Developed by Kenneth Kroenlein, Chris D. Muzny, Andrei F. Kazakov, Vladimir Diky, Robert D. Chirico, Joseph W. Magee, Ilmutdin Abdulagatov and Michael Frenkel.

                    Thermodynamics Research Center (TRC)
                    Thermophysical Properties Division
                    National Institute of Standards and Technology
                    Boulder CO 80305-3337

                    Questions and comments should be addressed to Dr. Michael Frenkel .

                    DISCLAIMER: The National Institute of Standards and Technology (NIST) uses its best efforts to deliver a high-quality copy of the database and to verify that the methods and data contained therein have been selected on the basis of sound scientific judgement. However, NIST makes no warranties to that effect, and NIST shall not be liable for any damage that may result from errors or omissions in the program and database.

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                    National Institute of Standards and Technology
                    Gaithersburg MD 20899

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