Compound Information 

Name: 2,2-dimethyl-3-pentyne
Formula: C7H12
Molar Mass: 96.173
Additional Names: 1-methyl-2-tert-butylacetylene
4,4-dimethyl-2-pentyne
tert-butylmethylacetylene
2-pentyne, 4,4-dimethyl-
1-tert-butyl-1-propyne
Image of 2,2-dimethyl-3-pentyne

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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 0.00644607 kPa to 3405 kPa
            • Phase boundary pressure (Liquid in equilibrium with Gas) as a function of Temperature
              Temperature from 190.8 K to 553 K
              3 experimental data points
              • Critical density (Liquid and Gas)
                • Density
                  • Density (Liquid in equilibrium with Gas) as a function of Temperature
                    Temperature from 190.8 K to 553 K
                    5 experimental data points
                  • Density (Gas) as a function of Temperature and Pressure
                    Temperature from 270 K to 550 K
                    Pressure from 0.0007 kPa to 742.044 kPa
                  • Density (Gas in equilibrium with Liquid) as a function of Temperature
                    Temperature from 445.953 K to 553 K
                • Enthalpy of vaporization or sublimation (Liquid to Gas) as a function of Temperature
                  Temperature from 190.8 K to 553 K
                  • Heat capacity at saturation pressure (Liquid in equilibrium with Gas) as a function of Temperature
                    Temperature from 190.8 K to 540 K
                    • 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 190.8 K to 540 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 190.8 K to 540 K
                      • Viscosity
                        • Viscosity (Gas) as a function of Temperature and Pressure
                          Temperature from 360 K to 820 K
                        • Viscosity (Liquid in equilibrium with Gas) as a function of Temperature
                          Temperature from 260 K to 550 K
                      • Thermal conductivity
                        • Thermal conductivity (Gas) as a function of Temperature and Pressure
                          Temperature from 360 K to 820 K
                        • Thermal conductivity (Liquid in equilibrium with Gas) as a function of Temperature
                          Temperature from 200 K to 490 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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