Compound Information 

Name: 2-pyrazinecarboxylic acid
Formula: C5H4N2O2
Molar Mass: 124.099
Additional Names: 2-pyrazinoic acid
pyrazinic acid
2-carboxypyrazine
pyrazinecarboxylic acid
1,4-diazinecarboxylic acid
Image of 2-pyrazinecarboxylic acid

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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 34.3818 kPa to 4867.92 kPa
            • Phase boundary pressure (Liquid in equilibrium with Gas) as a function of Temperature
              Temperature from 498 K to 768 K
              • Critical density (Liquid and Gas)
                • Density
                  • Density (Liquid in equilibrium with Gas) as a function of Temperature
                    Temperature from 498 K to 768 K
                  • Density (Gas in equilibrium with Liquid) as a function of Temperature
                    Temperature from 618.168 K to 768 K
                • Enthalpy of vaporization or sublimation (Liquid to Gas) as a function of Temperature
                  Temperature from 498 K to 768 K
                  • Heat capacity at constant pressure (Ideal Gas) as a function of Temperature
                    Temperature from 200 K to 1000 K
                    • Enthalpy (Ideal Gas) as a function of Temperature
                      Temperature from 200 K to 1000 K
                      • Viscosity (Gas) as a function of Temperature and Pressure
                        Temperature from 540 K to 1150 K
                        • Thermal conductivity (Gas) as a function of Temperature and Pressure
                          Temperature from 540 K to 1150 K
                          • 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.

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

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