Triethylene glycol

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Condensed phase thermochemistry data

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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Data compiled as indicated in comments:
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
DH - Eugene S. Domalski and Elizabeth D. Hearing

Quantity Value Units Method Reference Comment
Δfliquid-192.22 ± 0.85kcal/molCcbMoureu and Dode, 1937Reanalyzed by Cox and Pilcher, 1970, Original value = -192.3 kcal/mol; ALS
Quantity Value Units Method Reference Comment
Δcliquid-850.29 ± 0.85kcal/molCcbMoureu and Dode, 1937Reanalyzed by Cox and Pilcher, 1970, Original value = -850.7 kcal/mol; Corresponding Δfliquid = -192.22 kcal/mol (simple calculation by NIST; no Washburn corrections); ALS

Constant pressure heat capacity of liquid

Cp,liquid (cal/mol*K) Temperature (K) Reference Comment
79.76298.Zaripov, 1982DH
78.30298.Stephens and Tamplin, 1979T = 273 to 533 K. Temperature range 298, 323, 363 K.; DH

Phase change data

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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Data compiled as indicated in comments:
BS - Robert L. Brown and Stephen E. Stein
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny director
AC - William E. Acree, Jr., James S. Chickos
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein

Quantity Value Units Method Reference Comment
Tboil540. ± 90.KAVGN/AAverage of 6 values; Individual data points
Quantity Value Units Method Reference Comment
Tfus263.75KN/AGallaugher and Hibbert, 1936Uncertainty assigned by TRC = 0.5 K; TRC
Quantity Value Units Method Reference Comment
Tc797.KN/ANikitin, Pavlov, et al., 1995Uncertainty assigned by TRC = 10. K; TRC
Tc713.KN/AStephens and Tamplin, 1979, 2Uncertainty assigned by TRC = 20. K; TC data from Union Carbide Corp.; TRC
Quantity Value Units Method Reference Comment
Pc32.57atmN/ANikitin, Pavlov, et al., 1995Uncertainty assigned by TRC = 0.59 atm; TRC
Quantity Value Units Method Reference Comment
Δvap14.5kcal/molN/AWise, Puck, et al., 1950Based on data from 293. to 303. K.; AC

Enthalpy of vaporization

ΔvapH (kcal/mol) Temperature (K) Method Reference Comment
17.3 ± 0.07440.EBSteele, Chirico, et al., 2002Based on data from 442. to 562. K.; AC
16.4 ± 0.07480.EBSteele, Chirico, et al., 2002Based on data from 442. to 562. K.; AC
15.4 ± 0.07520.EBSteele, Chirico, et al., 2002Based on data from 442. to 562. K.; AC
14.5 ± 0.1560.EBSteele, Chirico, et al., 2002Based on data from 442. to 562. K.; AC
16.2295.AStephenson and Malanowski, 1987Based on data from 288. to 303. K. See also Ishiguro and Matsumoto, 1955.; AC
17.1402.AStephenson and Malanowski, 1987Based on data from 387. to 552. K. See also Stull, 1947.; AC
18.4300.N/AMcFeely and Somorjai, 1972Based on data from 278. to 323. K.; AC
18.9 ± 1.9273.VGallaugher and Hibbert, 1937Reanalyzed by Pedley, Naylor, et al., 1986, Original value = 17.07 kcal/mol; ALS

Antoine Equation Parameters

log10(P) = A − (B / (T + C))
    P = vapor pressure (atm)
    T = temperature (K)

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Temperature (K) A B C Reference Comment
387. to 551.46.75113715.222-1.299Stull, 1947Coefficents calculated by NIST from author's data.

In addition to the Thermodynamics Research Center (TRC) data available from this site, much more physical and chemical property data is available from the following TRC products:


References

Go To: Top, Condensed phase thermochemistry data, Phase change data, Notes

Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Moureu and Dode, 1937
Moureu, H.; Dode, M., Chaleurs de formation de l'oxyde d'ethylene, de l'ethanediol et de quelques homologues, Bull. Soc. Chim. France, 1937, 4, 637-647. [all data]

Cox and Pilcher, 1970
Cox, J.D.; Pilcher, G., Thermochemistry of Organic and Organometallic Compounds, Academic Press, New York, 1970, 1-636. [all data]

Zaripov, 1982
Zaripov, Z.I., Experimental study of the isobaric heat capacity of liquid organic compounds with molecular weights of up to 4000 a.e.m., 1982, Teplomassoobmen Teplofiz. [all data]

Stephens and Tamplin, 1979
Stephens, M.A.; Tamplin, W.S., Saturated liquid specific heats of ethylene glycol homologues, J. Chem. Eng. Data, 1979, 24, 81-82. [all data]

Gallaugher and Hibbert, 1936
Gallaugher, A.F.; Hibbert, H., Studies on reactions relating to carbohydrates and polysaccharides: xlix molecular weight, molar refraction, freezing point and other properties of the polyethylene glycols and their derivatives, J. Am. Chem. Soc., 1936, 58, 813. [all data]

Nikitin, Pavlov, et al., 1995
Nikitin, E.D.; Pavlov, P.A.; Popov, A.P., (Gas + liquid) critical temperatures and pressures of polyethene glycols for HOCH2CH2OH to H(OCH2CH2)v.apprxeq.13.2OH, J. Chem. Thermodyn., 1995, 27, 43-51. [all data]

Stephens and Tamplin, 1979, 2
Stephens, M.A.; Tamplin, W.S., Saturated Liquid SPecific Heats of Ethylene GLycol Homologues, J. Chem. Eng. Data, 1979, 24, 81-2. [all data]

Wise, Puck, et al., 1950
Wise, Henry.; Puck, Theodore T.; Failey, Crawford F., The Studies in Vapor--Liquid Equilibria. II. The Binary System Triethylene Glycol--Water., J. Phys. Chem., 1950, 54, 5, 734-741, https://doi.org/10.1021/j150479a021 . [all data]

Steele, Chirico, et al., 2002
Steele, W.V.; Chirico, R.D.; Knipmeyer, S.E.; Nguyen, A., Measurements of Vapor Pressure, Heat Capacity, and Density along the Saturation Line for γ-Caprolactam, Pyrazine, 1,2-Propanediol, Triethylene Glycol, Phenyl Acetylene, and Diphenyl Acetylene, J. Chem. Eng. Data, 2002, 47, 4, 689-699, https://doi.org/10.1021/je010085z . [all data]

Stephenson and Malanowski, 1987
Stephenson, Richard M.; Malanowski, Stanislaw, Handbook of the Thermodynamics of Organic Compounds, 1987, https://doi.org/10.1007/978-94-009-3173-2 . [all data]

Ishiguro and Matsumoto, 1955
Ishiguro, T.; Matsumoto, K., Yakugaku Zasshi, 1955, 75, 1414. [all data]

Stull, 1947
Stull, Daniel R., Vapor Pressure of Pure Substances. Organic and Inorganic Compounds, Ind. Eng. Chem., 1947, 39, 4, 517-540, https://doi.org/10.1021/ie50448a022 . [all data]

McFeely and Somorjai, 1972
McFeely, F.R.; Somorjai, G.A., Vaporization kinetics of hydrogen-bonded liquids, J. Phys. Chem., 1972, 76, 6, 914-918, https://doi.org/10.1021/j100650a022 . [all data]

Gallaugher and Hibbert, 1937
Gallaugher, A.F.; Hibbert, H., Studies on reactions relating to carbohydrates and polysaccharides. LV. Vapor pressures of the polyethylene glycols and their derivatives, J. Am. Chem. Soc., 1937, 59, 2521-2525. [all data]

Pedley, Naylor, et al., 1986
Pedley, J.B.; Naylor, R.D.; Kirby, S.P., Thermochemical Data of Organic Compounds, Chapman and Hall, New York, 1986, 1-792. [all data]


Notes

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