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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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For this compound, WTT contains critically evaluated recommendations for:

  • Triple point temperature (Crystal 1, Liquid, and Gas)
    4 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 0.00476335 kPa to 4294.28 kPa
            • Phase boundary pressure (Liquid in equilibrium with Gas) as a function of Temperature
              Temperature from 187.2 K to 533.6 K
              44 experimental data points
              • Critical density (Liquid and Gas)
                • Density
                  • Density (Liquid in equilibrium with Gas) as a function of Temperature
                    Temperature from 203.045 K to 533.6 K
                    38 experimental data points
                  • Density (Gas) as a function of Temperature and Pressure
                    Temperature from 260 K to 530 K
                    Pressure from 0.0008 kPa to 826.159 kPa
                  • Density (Gas in equilibrium with Liquid) as a function of Temperature
                    Temperature from 427.414 K to 533.6 K
                • Enthalpy of vaporization or sublimation (Liquid to Gas) as a function of Temperature
                  Temperature from 187.2 K to 533.6 K
                  4 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
                      • Entropy (Ideal Gas) as a function of Temperature and Pressure
                        Temperature from 200 K to 1000 K
                        • Refractive index (Liquid) as a function of Wavelength, Temperature, and Pressure
                          Wavelength from 434.05 nm to 759.37 nm
                          Temperature from 279.946 K to 313.15 K
                          26 experimental data points
                          • Surface tension (Liquid in equilibrium with Gas) as a function of Temperature
                            Temperature from 292.839 K to 314.229 K
                            4 experimental data points
                            • Viscosity
                              • Viscosity (Gas) as a function of Temperature and Pressure
                                Temperature from 350 K to 800 K
                              • Viscosity (Liquid in equilibrium with Gas) as a function of Temperature
                                Temperature from 250 K to 530 K
                                9 experimental data points
                            • Thermal conductivity
                              • Thermal conductivity (Gas) as a function of Temperature and Pressure
                                Temperature from 350 K to 800 K
                              • Thermal conductivity (Liquid in equilibrium with Gas) as a function of Temperature
                                Temperature from 190 K to 480 K
                            • Enthalpy of formation
                              • Enthalpy of formation (Gas)
                              • Enthalpy of formation (Liquid)
                                1 experimental data points
                             
                             
                             
                             
                             
                             
                             
                             
                            Compound Information 
                             
                             
                             
                             
                             
                            Name: 2-methyl-1-propanamine
                            Formula: C4H11N
                            Molar Mass: 73.139
                            Additional Names: 1-amino-2-methylpropane
                            1-propanamine, 2-methyl-
                            2-methylpropanamine
                            (2-methylpropyl)amine
                            valamine
                            isobutylamine
                            Image of 2-methyl-1-propanamine