Compound Information 

Name: 8-octadecyne
Formula: C18H34
Molar Mass: 250.47
Image of 8-octadecyne
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Property Availability 

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 1.95709e-006 kPa to 1315.79 kPa
            • Phase boundary pressure (Liquid in equilibrium with Gas) as a function of Temperature
              Temperature from 270.7 K to 749 K
              1 experimental data points
              • Critical density (Liquid and Gas)
                • Density
                  • Density (Liquid in equilibrium with Gas) as a function of Temperature
                    Temperature from 293.138 K to 749 K
                    2 experimental data points
                  • Density (Gas in equilibrium with Liquid) as a function of Temperature
                    Temperature from 602.949 K to 749 K
                • Enthalpy of vaporization or sublimation (Liquid to Gas) as a function of Temperature
                  Temperature from 270.7 K to 749 K
                  • Heat capacity at saturation pressure (Liquid in equilibrium with Gas) as a function of Temperature
                    Temperature from 270.7 K to 734.02 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 270.7 K to 734.02 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 270.7 K to 734.02 K
                      • Refractive index (Liquid in equilibrium with Gas) as a function of Wavelength and Temperature
                        Temperature from 293.138 K to 308.132 K
                        2 experimental data points
                        • Viscosity
                          • Viscosity (Gas) as a function of Temperature and Pressure
                            Temperature from 590 K to 1120 K
                          • Viscosity (Liquid in equilibrium with Gas) as a function of Temperature
                            Temperature from 280 K to 740 K
                        • Thermal conductivity
                          • Thermal conductivity (Gas) as a function of Temperature and Pressure
                            Temperature from 590 K to 1120 K
                          • Thermal conductivity (Liquid in equilibrium with Gas) as a function of Temperature
                            Temperature from 280 K to 670 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.

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

                        Compound Information
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