Compound Information 

Name: 3,6-dioxa-1,8-octanediol
Formula: C6H14O4
Molar Mass: 150.174
Additional Names: ethylene glycol bis(2-hydroxyethyl) ether
triethylene glycol
2-(2-(2-hydroxyethoxy)ethoxy)ethanol
triglycol
2,2'-(ethylenedioxy)diethanol
1,2-di(.beta.-hydroxyethoxy)ethane
ethanol, 2,2'-[1,2-ethanediylbis(oxy)]bis-
3,6-dioxaoctane-1,8-diol
1,2-bis(2-hydroxyethoxy)ethane
glycol bis(hydroxyethyl) ether
2,2'-ethylenedioxydiethanol
Image of 3,6-dioxa-1,8-octanediol

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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)
    1 experimental data points
    • Normal boiling temperature (Liquid and Gas)
      • Critical temperature (Liquid and Gas)
        1 experimental data points
        • Critical pressure (Liquid and Gas)
          1 experimental data points
          • Boiling temperature (Liquid in equilibrium with Gas) as a function of Pressure
            Pressure from 2.12334e-006 kPa to 3300 kPa
            • Phase boundary pressure (Liquid in equilibrium with Gas) as a function of Temperature
              Temperature from 263.76 K to 797 K
              50 experimental data points
              • Critical density (Liquid and Gas)
                • Density
                  • Density (Liquid in equilibrium with Gas) as a function of Temperature
                    Temperature from 263.76 K to 797 K
                    50 experimental data points
                  • Density (Liquid) as a function of Temperature and Pressure
                    Temperature from 298.15 K to 462.58 K
                    Pressure from 0.2 kPa to 245160 kPa
                    35 experimental data points
                  • Density (Gas) as a function of Temperature and Pressure
                    Temperature from 418.231 K to 784.56 K
                    Pressure from 0.0005 kPa to 451.018 kPa
                  • Density (Gas in equilibrium with Liquid) as a function of Temperature
                    Temperature from 633.156 K to 797 K
                • Enthalpy of vaporization or sublimation (Liquid to Gas) as a function of Temperature
                  Temperature from 263.76 K to 797 K
                  • Heat capacity at saturation pressure (Liquid in equilibrium with Gas) as a function of Temperature
                    Temperature from 263.76 K to 780 K
                    30 experimental data points
                    • Heat capacity at constant pressure (Ideal Gas) as a function of Temperature
                      Temperature from 200 K to 1000 K
                      • Enthalpy
                        • Enthalpy (Liquid in equilibrium with Gas) as a function of Temperature
                          Temperature from 263.76 K to 780 K
                        • Enthalpy (Ideal Gas) as a function of Temperature
                          Temperature from 200 K to 1000 K
                      • Entropy
                        • Entropy (Ideal Gas) as a function of Temperature and Pressure
                          Temperature from 200 K to 1000 K
                        • Entropy (Liquid in equilibrium with Gas) as a function of Temperature
                          Temperature from 263.76 K to 780 K
                      • Speed of sound (Liquid) as a function of Temperature and Pressure
                        Temperature from 298.15 K to 308.15 K
                        Pressure from 4e-10 kPa to 0.000444662 kPa
                        14 experimental data points
                        • Refractive index (Liquid in equilibrium with Gas) as a function of Wavelength and Temperature
                          Temperature from 293.096 K to 298.15 K
                          13 experimental data points
                          • Viscosity
                            • Viscosity (Liquid in equilibrium with Gas) as a function of Temperature
                              Temperature from 273.15 K to 790 K
                              50 experimental data points
                            • Viscosity (Gas) as a function of Temperature and Pressure
                              Temperature from 570 K to 1190 K
                          • Thermal conductivity
                            • Thermal conductivity (Gas) as a function of Temperature and Pressure
                              Temperature from 570 K to 1190 K
                            • Thermal conductivity (Liquid in equilibrium with Gas) as a function of Temperature
                              Temperature from 273.001 K to 710 K
                              27 experimental data points
                          • 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.

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

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