Compound Information 

Name: 2,6,10,15,19,23-hexamethyltetracosane
Formula: C30H62
Molar Mass: 422.826
Additional Names: cosbiol
tetracosane, 2,6,10,15,19,23-hexamethyl-
squalane
Image of 2,6,10,15,19,23-hexamethyltetracosane

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Property Availability 

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)

  • Normal boiling temperature (Liquid and Gas)
    • Critical temperature (Liquid and Gas)
      2 experimental data points
      • Critical pressure (Liquid and Gas)
        2 experimental data points
        • Boiling temperature (Liquid in equilibrium with Gas) as a function of Pressure
          Pressure from 9.37786e-016 kPa to 586.629 kPa
          • Phase boundary pressure (Liquid in equilibrium with Gas) as a function of Temperature
            Temperature from 240 K to 795.9 K
            30 experimental data points
            • Critical density (Liquid and Gas)
              • Density
                • Density (Liquid in equilibrium with Gas) as a function of Temperature
                  Temperature from 240 K to 795.9 K
                  42 experimental data points
                • Density (Liquid) as a function of Temperature and Pressure
                  Temperature from 273.15 K to 448.25 K
                  Pressure from 0.2 kPa to 196133 kPa
                  50 experimental data points
              • Heat capacity at saturation pressure (Liquid in equilibrium with Gas) as a function of Temperature
                Temperature from 298.15 K to 403 K
                8 experimental data points
                • 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 298.15 K to 403 K
                    • Enthalpy (Ideal Gas) as a function of Temperature
                      Temperature from 200 K to 1000 K
                  • Entropy (Ideal Gas) as a function of Temperature and Pressure
                    Temperature from 200 K to 1000 K
                    • Speed of sound (Liquid) as a function of Temperature and Pressure
                      Temperature from 298.15 K to 308.15 K
                      Pressure from 9e-15 kPa to 9.39032e-009 kPa
                      18 experimental data points
                      • Refractive index (Liquid) as a function of Wavelength, Temperature, and Pressure
                        Wavelength from 434.05 nm to 656.27 nm
                        Temperature from 292.989 K to 312.99 K
                        20 experimental data points
                        • Surface tension (Liquid in equilibrium with Gas) as a function of Temperature
                          Temperature from 292.996 K to 472.96 K
                          4 experimental data points
                          • Viscosity
                            • Viscosity (Liquid in equilibrium with Gas) as a function of Temperature
                              Temperature from 273 K to 453.15 K
                              50 experimental data points
                            • Viscosity (Gas) as a function of Temperature and Pressure
                              Temperature from 700 K to 1190 K
                          • Thermal conductivity (Liquid in equilibrium with Gas) as a function of Temperature
                            Temperature from 200 K to 710 K
                            • Enthalpy of formation
                              • Enthalpy of formation (Gas)
                              • Enthalpy of formation (Liquid)
                                2 experimental data points
                              • Enthalpy of formation (Crystal)
                                1 experimental data points

                            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.

                            Distributed by:
                            Standard Reference Data Program
                            National Institute of Standards and Technology
                            Gaithersburg MD 20899

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