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Ethyl ether

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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 - R.L. Brown and S.E. Stein
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, M. Frenkel director
ALS - H.Y. Afeefy, J.F. Liebman, and S.E. Stein
AC - W.E. Acree, Jr., J.S. Chickos
DH - E.S. Domalski and E.D. Hearing

Quantity Value Units Method Reference Comment
Tboil307.7 ± 0.2KAVGN/AAverage of 19 out of 22 values; Individual data points
Quantity Value Units Method Reference Comment
Tfus154. ± 7.KAVGN/AAverage of 14 out of 15 values; Individual data points
Quantity Value Units Method Reference Comment
Ttriple156.92KN/AWilhoit, Chao, et al., 1985Uncertainty assigned by TRC = 0.05 K; TRC
Ttriple149.86KN/ACounsell, Lee, et al., 1971Crystal phase 2 phase; Uncertainty assigned by TRC = 0.02 K; TRC
Ttriple156.92KN/ACounsell, Lee, et al., 1971Crystal phase 1 phase; Uncertainty assigned by TRC = 0.02 K; TRC
Ttriple156.8KN/AParks and Huffman, 1926Uncertainty assigned by TRC = 0.2 K; TRC
Quantity Value Units Method Reference Comment
Tc467. ± 2.KAVGN/AAverage of 29 out of 30 values; Individual data points
Quantity Value Units Method Reference Comment
Pc36. ± 1.barAVGN/AAverage of 16 out of 17 values; Individual data points
Quantity Value Units Method Reference Comment
Vc0.274l/molN/AKobe, Ravicz, et al., 1956Uncertainty assigned by TRC = 0.005 l/mol; TRC
Quantity Value Units Method Reference Comment
rhoc3.5 ± 0.4mol/lAVGN/AAverage of 10 values; Individual data points
Quantity Value Units Method Reference Comment
Deltavap27.1 ± 0.5kJ/molAVGN/AAverage of 6 values; Individual data points

Enthalpy of vaporization

DeltavapH (kJ/mol) Temperature (K) Method Reference Comment
26.52307.6N/AMajer and Svoboda, 1985 
27.530285.0N/AKeyes and Beattie, 1924P = 101.325 kPa; DH
28.1301.AStephenson and Malanowski, 1987Based on data from 286. - 329. K.; AC
26.9322.AStephenson and Malanowski, 1987Based on data from 307. - 457. K.; AC
27.5320.AStephenson and Malanowski, 1987Based on data from 305. - 360. K.; AC
26.7432.AStephenson and Malanowski, 1987Based on data from 417. - 467. K.; AC
29.5265.AStephenson and Malanowski, 1987Based on data from 250. - 329. K. See also Ambrose, Sprake, et al., 1972 and Ambrose, Ellender, et al., 1976.; AC
27.247 ± 0.005295.63VCounsell, Lee, et al., 1971, 2ALS
28.4278.N/ATaylor and Smith, 1922Based on data from 213. - 293. K.; AC

Enthalpy of vaporization

ΔvapH = A exp(-βTr) (1 − Tr)β
    ΔvapH = Enthalpy of vaporization (at saturation pressure) (kJ/mol)
    Tr = reduced temperature (T / Tc)

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Temperature (K) A (kJ/mol) beta Tc (K) Reference Comment
281. - 313.43.010.2786466.7Majer and Svoboda, 1985 

Entropy of vaporization

DeltavapS (J/mol*K) Temperature (K) Reference Comment
96.60285.0Keyes and Beattie, 1924P; DH

Antoine Equation Parameters

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

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Temperature (K) A B C Reference Comment
250.04 - 328.574.02201062.64-44.93Ambrose, Sprake, et al., 1972Coefficents calculated by NIST from author's data.
350.14 - 466.734.469881354.913-5.537Ambrose, Sprake, et al., 1972Coefficents calculated by NIST from author's data.
212.4 - 293.024.133771102.878-40.46Taylor and Smith, 1922Coefficents calculated by NIST from author's data.

Enthalpy of fusion

DeltafusH (kJ/mol) Temperature (K) Reference Comment
7.19156.9Counsell, Lee, et al., 1971, 2AC
7.301156.8Parks and Huffman, 1926, 2DH

Entropy of fusion

DeltafusS (J/mol*K) Temperature (K) Reference Comment
46.6156.8Parks and Huffman, 1926, 2DH

Enthalpy of phase transition

DeltaHtrs (kJ/mol) Temperature (K) Initial Phase Final Phase Reference Comment
6.820149.86crystaline, IIliquidCounsell, Lee, et al., 1971, 3DH
7.190156.92crystaline, IliquidCounsell, Lee, et al., 1971, 3Metastable crystal.; DH

Entropy of phase transition

DeltaStrs (J/mol*K) Temperature (K) Initial Phase Final Phase Reference Comment
45.5149.86crystaline, IIliquidCounsell, Lee, et al., 1971, 3DH
45.82156.92crystaline, IliquidCounsell, Lee, et al., 1971, 3Metastable; DH

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, Phase change data, Notes

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

Wilhoit, Chao, et al., 1985
Wilhoit, R.C.; Chao, J.; Hall, K.R., Thermodynamic Properties of Key Organic Compounds in the Carbon Range C1 to C4. Part 1. Properties of Condensed Phases, J. Phys. Chem. Ref. Data, 1985, 14, 1. [all data]

Counsell, Lee, et al., 1971
Counsell, J.F.; Lee, D.A.; Martin, J.F., Thermodynamic properties of organic oxygen compounds: xxvi diethyl ether, J. Chem. Soc. A, 1971, 1971, 313-6. [all data]

Parks and Huffman, 1926
Parks, G.S.; Huffman, H.M., Thermal data on organic compounds: IV the heat capacites, entropies, and free energies of normal propyl alcohol, ethyl ether, and dulcitol, J. Am. Chem. Soc., 1926, 48, 2788-93. [all data]

Kobe, Ravicz, et al., 1956
Kobe, K.A.; Ravicz, A.E.; Vohra, S.P., Critical Properties and Vapor Pressures of Some Ethers and Heterocyclic Compounds, J. Chem. Eng. Data, 1956, 1, 50. [all data]

Majer and Svoboda, 1985
Majer, V.; Svoboda, V., Enthalpies of Vaporization of Organic Compounds: A Critical Review and Data Compilation, Blackwell Scientific Publications, Oxford, 1985, 300. [all data]

Keyes and Beattie, 1924
Keyes, F.G.; Beattie, J.A., A calorimeter for measuring specific heats and heats of vaporization of liquids. The specific heat and heat of vaporization of liquid ethyl ether at 0° and 12°, J. Am. Chem. Soc., 1924, 46, 1753-1760. [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]

Ambrose, Sprake, et al., 1972
Ambrose, D.; Sprake, C.H.S.; Townsend, R., Thermodynamic properties of organic oxygen compounds XXIX. The vapour pressure of diethyl ether, The Journal of Chemical Thermodynamics, 1972, 4, 2, 247-254, https://doi.org/10.1016/0021-9614(72)90063-8 . [all data]

Ambrose, Ellender, et al., 1976
Ambrose, D.; Ellender, J.H.; Sprake, C.H.S.; Townsend, R., Thermodynamic properties of organic oxygen compounds XLIII. Vapour pressures of some ethers, The Journal of Chemical Thermodynamics, 1976, 8, 2, 165-178, https://doi.org/10.1016/0021-9614(76)90090-2 . [all data]

Counsell, Lee, et al., 1971, 2
Counsell, J.F.; Lee, D.A.; Martin, J.F., Thermodynamic properties of organic oxygen compounds. Part XXVI. Diethyl ether, J. Chem. Soc. A, 1971, 313. [all data]

Taylor and Smith, 1922
Taylor, Robert S.; Smith, Leighton B., THE VAPOR PRESSURES, DENSITIES AND SOME DERIVED QUANTITIES FOR ETHER AT LOW TEMPERATURES, J. Am. Chem. Soc., 1922, 44, 11, 2450-2463, https://doi.org/10.1021/ja01432a012 . [all data]

Parks and Huffman, 1926, 2
Parks, G.S.; Huffman, H.M., Thermal data on organic compounds. IV. The heat capacities, entropies and free energies of normal propyl alcohol, ethyl ether and dulcitol, J. Am. Chem. Soc., 1926, 48, 2788-2793. [all data]

Counsell, Lee, et al., 1971, 3
Counsell, J.F.; Lee, D.A.; Martin, J.F., Thermodynamic properties of organic oxygen compounds. Part XXVI. Diethyl ether, 1971, J. [all data]


Notes

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