Ethyl ether

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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-271.2 ± 1.9kJ/molCcbMurrin and Goldhagen, 1957ALS
Quantity Value Units Method Reference Comment
Δcliquid-2732.1 ± 1.9kJ/molCcbMurrin and Goldhagen, 1957Corresponding Δfliquid = -271.1 kJ/mol (simple calculation by NIST; no Washburn corrections); ALS
Quantity Value Units Method Reference Comment
liquid253.5J/mol*KN/ACounsell, Lee, et al., 1971DH
liquid252.7J/mol*KN/AParks, Kelley, et al., 1929Extrapolation below 90 K, 58.6 J/mol*K. Revision of previous data.; DH
liquid283.3J/mol*KN/AParks and Huffman, 1926Extrapolation below 90 K, 88.70 J/mol*K.; DH

Constant pressure heat capacity of liquid

Cp,liquid (J/mol*K) Temperature (K) Reference Comment
172.5298.15Counsell, Lee, et al., 1971T = 15 to 300 K.; DH
171.88293.15Mazur, 1939T = -112 to 20°C.; DH
172.0293.Mazur, 1939, 2T = -110 to 20°C.; DH
167.4290.Kurnakov and Voskresenskaya, 1936DH
164.8255.2Aoyama and Kanda, 1935T = 80 to 255 K. Value is unsmoothed experimental datum.; DH
179.9308.Bennewitz and Wendroth, 1927T = 308 to 488 K. Value is unsmoothed experimental datum. Pressure 40 atmospheres.; DH
170.7290.0Parks and Huffman, 1926T = 76 to 290 K. Value is unsmoothed experimental datum.; DH
179.1286.6Keyes and Beattie, 1924T = 274, 286 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
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
AC - William E. Acree, Jr., James S. Chickos
DH - Eugene S. Domalski and Elizabeth D. Hearing

Quantity Value Units Method Reference Comment
Tboil307.7 ± 0.4KAVGN/AAverage of 20 out of 21 values; Individual data points
Quantity Value Units Method Reference Comment
Tfus154. ± 7.KAVGN/AAverage of 13 out of 14 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., 1971, 2Crystal phase 2 phase; Uncertainty assigned by TRC = 0.02 K; TRC
Ttriple156.92KN/ACounsell, Lee, et al., 1971, 2Crystal phase 1 phase; Uncertainty assigned by TRC = 0.02 K; TRC
Ttriple156.8KN/AParks and Huffman, 1926, 2Uncertainty 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
ρc3.5 ± 0.4mol/lAVGN/AAverage of 10 values; Individual data points
Quantity Value Units Method Reference Comment
Δvap27.1 ± 0.5kJ/molAVGN/AAverage of 6 values; Individual data points

Enthalpy of vaporization

ΔvapH (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. to 329. K.; AC
26.9322.AStephenson and Malanowski, 1987Based on data from 307. to 457. K.; AC
27.5320.AStephenson and Malanowski, 1987Based on data from 305. to 360. K.; AC
26.7432.AStephenson and Malanowski, 1987Based on data from 417. to 467. K.; AC
29.5265.AStephenson and Malanowski, 1987Based on data from 250. to 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, 3ALS
28.4278.N/ATaylor and Smith, 1922Based on data from 213. to 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) β Tc (K) Reference Comment
281. to 313.43.010.2786466.7Majer and Svoboda, 1985 

Entropy of vaporization

ΔvapS (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 to 328.574.02201062.64-44.93Ambrose, Sprake, et al., 1972Coefficents calculated by NIST from author's data.
350.14 to 466.734.469881354.913-5.537Ambrose, Sprake, et al., 1972Coefficents calculated by NIST from author's data.
212.4 to 293.024.133771102.878-40.46Taylor and Smith, 1922Coefficents calculated by NIST from author's data.

Enthalpy of fusion

ΔfusH (kJ/mol) Temperature (K) Reference Comment
7.19156.9Counsell, Lee, et al., 1971, 3AC
7.301156.8Parks and Huffman, 1926DH

Entropy of fusion

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

Enthalpy of phase transition

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

Entropy of phase transition

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

Murrin and Goldhagen, 1957
Murrin, J.W.; Goldhagen, S., Determination of the C-O bond energy from the heats of combustion of four aliphatic ethers, NAVORD Report No. 5491, U.S. Naval Powder Factory Res. & Dev. Dept., 1957, 1-14. [all data]

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

Parks, Kelley, et al., 1929
Parks, G.S.; Kelley, K.K.; Huffman, H.M., Thermal data on organic compounds. V. A revision of the entropies and free energies of nineteen organic compounds, J. Am. Chem. Soc., 1929, 51, 1969-1973. [all data]

Parks and Huffman, 1926
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]

Mazur, 1939
Mazur, J., Über die spezifische Wärme des Äthyläthers, Acta Phys. Pol., 1939, 7, 318-326. [all data]

Mazur, 1939, 2
Mazur, J., Über die spezifische Wärme des Äthyläthers, des Nitrobenzols und des Schwefelkohlenstoffs, Z. Physik., 1939, 113, 710-720. [all data]

Kurnakov and Voskresenskaya, 1936
Kurnakov, N.S.; Voskresenskaya, N.K., Calorimetry of liquid binary systems, Izv. Akad. Nauk SSSR, Otdel. Mat. i Estestv. Nauk. Ser. Khim, 1936, 1936, 439-461. [all data]

Aoyama and Kanda, 1935
Aoyama, S.; Kanda, E., Studies on the heat capacities at low temperature. Report I. Heat capacities of some organic substances at low temperature, Sci. Rept. Tohoku Imp. Univ. [1]24, 1935, 107-115. [all data]

Bennewitz and Wendroth, 1927
Bennewitz, K.; Wendroth, H., Untersuchungen im kritischen Gebiet. II. Bestimmung der wahren spezifischen Wärme Cp des flüssigne Äthyläthers oberund unterhalb der kritischen Temperatur, Z. Phys. Chem., 1927, 125, 111-134. [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]

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, 2
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, 2
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]

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, 3
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]


Notes

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