Compound Information 

Name: nitric oxide
Formula: NO
Molar Mass: 30.006
Additional Names: nitrogen oxide (NO)
nitrogen monooxide
nitrosyl radical
oxoamidogen
amidogen, oxo-
nitrogen monoxide
Image of nitric oxide

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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)
    2 experimental data points
    • Normal boiling temperature (Liquid and Gas)
      • Critical temperature (Liquid and Gas)
        1 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 22.3936 kPa to 6434.3 kPa
            • Phase boundary pressure
              • Phase boundary pressure (Liquid in equilibrium with Gas) as a function of Temperature
                Temperature from 109.76 K to 177 K
                42 experimental data points
              • Phase boundary pressure (Crystal 1 in equilibrium with Gas) as a function of Temperature
                Temperature from 74.3 K to 109.76 K
                15 experimental data points
            • Critical density (Liquid and Gas)
              1 experimental data points
              • Density (Liquid in equilibrium with Gas) as a function of Temperature
                Temperature from 109.76 K to 177 K
                6 experimental data points
                • Enthalpy of vaporization or sublimation (Crystal 1 to Gas) as a function of Temperature
                  Temperature from 74.3 K to 109.76 K
                  • Heat capacity at saturation pressure
                    • Heat capacity at saturation pressure (Crystal 1 in equilibrium with Gas) as a function of Temperature
                      Temperature from 16 K to 109.76 K
                      44 experimental data points
                    • Heat capacity at saturation pressure (Liquid in equilibrium with Gas) as a function of Temperature
                      Temperature from 109.76 K to 120.561 K
                      9 experimental data points
                  • Heat capacity at constant pressure (Ideal Gas) as a function of Temperature
                    Temperature from 50 K to 5000 K
                    • Enthalpy
                      • Enthalpy (Crystal 1 in equilibrium with Gas) as a function of Temperature
                        Temperature from 16 K to 109.76 K
                      • Enthalpy (Ideal Gas) as a function of Temperature
                        Temperature from 50 K to 5000 K
                    • Entropy
                      • Entropy (Crystal 1 in equilibrium with Gas) as a function of Temperature
                        Temperature from 16 K to 109.76 K
                      • Entropy (Ideal Gas) as a function of Temperature and Pressure
                        Temperature from 50 K to 5000 K
                    • Speed of sound (Gas) as a function of Temperature and Pressure
                      Temperature from 200 K to 440 K
                      Pressure from 0.001 kPa to 1386.3 kPa
                      50 experimental data points
                      • Surface tension (Liquid in equilibrium with Gas) as a function of Temperature
                        Temperature from 110.011 K to 119.502 K
                        4 experimental data points
                        • Viscosity (Gas) as a function of Temperature and Pressure
                          Temperature from 373.875 K to 1282.46 K
                          18 experimental data points
                          • Thermal conductivity (Gas) as a function of Temperature and Pressure
                            Temperature from 303.085 K to 892.559 K
                            114 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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