Compound Information 

Name: 3-pyridinecarboxylic acid
Formula: C6H5NO2
Molar Mass: 123.111
Additional Names: nicotinic acid
niacin
3-carboxylpyridine
3-carboxypyridine
Image of 3-pyridinecarboxylic acid

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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)

  • Triple point temperature (Crystal 1, Liquid, and Gas)
    3 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 50.4138 kPa to 5481.06 kPa
            • Phase boundary pressure (Liquid in equilibrium with Gas) as a function of Temperature
              Temperature from 510.23 K to 784 K
              • Critical density (Liquid and Gas)
                • Density
                  • Density (Liquid in equilibrium with Gas) as a function of Temperature
                    Temperature from 510.23 K to 784 K
                  • Density (Gas) as a function of Temperature and Pressure
                    Temperature from 390 K to 775 K
                    Pressure from 0.0007 kPa to 705.405 kPa
                  • Density (Gas in equilibrium with Liquid) as a function of Temperature
                    Temperature from 630.984 K to 784 K
                • Enthalpy of phase transition (Crystal 1 to Liquid in equilibrium with Gas)
                  1 experimental data points
                  • Enthalpy of vaporization or sublimation
                    • Enthalpy of vaporization or sublimation (Crystal 1 to Gas) as a function of Temperature
                      Temperature from 298.145 K to 360.6 K
                      6 experimental data points
                    • Enthalpy of vaporization or sublimation (Liquid to Gas) as a function of Temperature
                      Temperature from 510.23 K to 784 K
                  • Heat capacity at saturation pressure (Crystal 1 in equilibrium with Gas) as a function of Temperature
                    Temperature from 80 K to 400 K
                    50 experimental data points
                    • 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 1170 K
                          • Thermal conductivity (Gas) as a function of Temperature and Pressure
                            Temperature from 540 K to 1170 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.

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

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