Ethyl ether

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Gas 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
GT - Glushko Thermocenter, Russian Academy of Sciences, Moscow

Quantity Value Units Method Reference Comment
Δfgas-60.40 ± 0.47kcal/molCcbPihlaja and Heikkil, 1968Reanalyzed by Pedley, Naylor, et al., 1986, Original value = -59.82 ± 0.44 kcal/mol; ALS
Δfgas-60.28 ± 0.19kcal/molCmPilcher, Skinner, et al., 1963ALS
Δfgas-58.4kcal/molCcbMurrin and Goldhagen, 1957ALS
Quantity Value Units Method Reference Comment
Δcgas-651.60 ± 0.43kcal/molCcbPihlaja and Heikkil, 1968Corresponding Δfgas = -66.18 kcal/mol (simple calculation by NIST; no Washburn corrections); ALS
Δcgas-657.52 ± 0.18kcal/molCmPilcher, Skinner, et al., 1963Corresponding Δfgas = -60.26 kcal/mol (simple calculation by NIST; no Washburn corrections); ALS
Quantity Value Units Method Reference Comment
gas81.79cal/mol*KN/ACounsell J.F., 1971Other third-law entropy values at 298.15 K are 342.46 [ Cope C.S., 1959], 342.33 [ Stull D.R., 1969], and 342.60 J/mol*K [ Chao J., 1986].; GT

Constant pressure heat capacity of gas

Cp,gas (cal/mol*K) Temperature (K) Reference Comment
14.94100.Chao J., 1986p=1 bar.; GT
20.27150.
23.83200.
27.318273.15
28.552 ± 0.036298.15
28.647300.
34.132400.
39.620500.
44.539600.
48.841700.
52.591800.
55.865900.
58.7191000.
61.2051100.
63.3651200.
65.2411300.
66.8761400.
68.2981500.

Constant pressure heat capacity of gas

Cp,gas (cal/mol*K) Temperature (K) Reference Comment
29.144309.98Counsell J.F., 1971Other experimental values of heat capacity [ Jennings W.H., 1934, Jatkar S.K.K., 1939, Valentin F.H.H., 1950] are believed to be less reliable (see [ Chao J., 1986]).; GT
30.251329.99
31.386350.00
32.794375.00
34.242400.01
35.636424.99
37.072450.04

Phase change data

Go To: Top, Gas phase thermochemistry data, Mass spectrum (electron ionization), References, Notes

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., 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
Pc36.0 ± 0.9atmAVGN/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
Δvap6.5 ± 0.1kcal/molAVGN/AAverage of 6 values; Individual data points

Enthalpy of vaporization

ΔvapH (kcal/mol) Temperature (K) Method Reference Comment
6.338307.6N/AMajer and Svoboda, 1985 
6.5798285.0N/AKeyes and Beattie, 1924P = 101.325 kPa; DH
6.72301.AStephenson and Malanowski, 1987Based on data from 286. to 329. K.; AC
6.43322.AStephenson and Malanowski, 1987Based on data from 307. to 457. K.; AC
6.57320.AStephenson and Malanowski, 1987Based on data from 305. to 360. K.; AC
6.38432.AStephenson and Malanowski, 1987Based on data from 417. to 467. K.; AC
7.05265.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
6.512 ± 0.001295.63VCounsell, Lee, et al., 1971, 2ALS
6.79278.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) (kcal/mol)
    Tr = reduced temperature (T / Tc)

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Temperature (K) A (kcal/mol) β Tc (K) Reference Comment
281. to 313.10.280.2786466.7Majer and Svoboda, 1985 

Entropy of vaporization

ΔvapS (cal/mol*K) Temperature (K) Reference Comment
23.09285.0Keyes and Beattie, 1924P; DH

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
250.04 to 328.574.01631062.64-44.93Ambrose, Sprake, et al., 1972Coefficents calculated by NIST from author's data.
350.14 to 466.734.464171354.913-5.537Ambrose, Sprake, et al., 1972Coefficents calculated by NIST from author's data.
212.4 to 293.024.128061102.878-40.46Taylor and Smith, 1922Coefficents calculated by NIST from author's data.

Enthalpy of fusion

ΔfusH (kcal/mol) Temperature (K) Reference Comment
1.72156.9Counsell, Lee, et al., 1971, 2AC
1.745156.8Parks and Huffman, 1926, 2DH

Entropy of fusion

ΔfusS (cal/mol*K) Temperature (K) Reference Comment
11.1156.8Parks and Huffman, 1926, 2DH

Enthalpy of phase transition

ΔHtrs (kcal/mol) Temperature (K) Initial Phase Final Phase Reference Comment
1.630149.86crystaline, IIliquidCounsell, Lee, et al., 1971, 3DH
1.718156.92crystaline, IliquidCounsell, Lee, et al., 1971, 3Metastable crystal.; DH

Entropy of phase transition

ΔStrs (cal/mol*K) Temperature (K) Initial Phase Final Phase Reference Comment
10.9149.86crystaline, IIliquidCounsell, Lee, et al., 1971, 3DH
10.95156.92crystaline, 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:


Mass spectrum (electron ionization)

Go To: Top, Gas phase thermochemistry data, Phase change data, References, Notes

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

Data compiled by: NIST Mass Spectrometry Data Center, William E. Wallace, director

Spectrum

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Mass spectrum
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Additional Data

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Owner NIST Mass Spectrometry Data Center
Collection (C) 2014 copyright by the U.S. Secretary of Commerce
on behalf of the United States of America. All rights reserved.
Origin Japan AIST/NIMC Database- Spectrum MS-NW- 71
NIST MS number 229016

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References

Go To: Top, Gas phase thermochemistry data, Phase change data, Mass spectrum (electron ionization), Notes

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

Pihlaja and Heikkil, 1968
Pihlaja, K.; Heikkil, J., Heats of combustion. Diethyl ether and 1,1-diethoxyethane, Acta Chem. Scand., 1968, 22, 2731-2732. [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]

Pilcher, Skinner, et al., 1963
Pilcher, G.; Skinner, H.A.; Pell, A.S.; Pope, A.E., Measurements of heats of combustion by flame calorimetry. Part 1.-Diethyl ether, ethyl vinyl ether and divinyl ether, Trans. Faraday Soc., 1963, 59, 316-330. [all data]

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 J.F., 1971
Counsell J.F., Thermodynamic properties of organic oxygen compounds. Part XXVI. Diethyl ether, J. Chem. Soc. A, 1971, 313-316. [all data]

Cope C.S., 1959
Cope C.S., Equilibria in the hydration of ethylene at elevated pressures and temperatures, A. I. Ch. E. Journal, 1959, 5, 10-16. [all data]

Stull D.R., 1969
Stull D.R., Jr., The Chemical Thermodynamics of Organic Compounds. Wiley, New York, 1969. [all data]

Chao J., 1986
Chao J., Thermodynamic properties of key organic oxygen compounds in the carbon range C1 to C4. Part 2. Ideal gas properties, J. Phys. Chem. Ref. Data, 1986, 15, 1369-1436. [all data]

Jennings W.H., 1934
Jennings W.H., Specific heat of furan and ethyl ether vapors, J. Phys. Chem., 1934, 38, 747-751. [all data]

Jatkar S.K.K., 1939
Jatkar S.K.K., Supersonic velocity in gases and vapors. V. Heat capacity of vapors of acetone, benzene, cyclohexane, hexane and methyl, ethyl and propyl ethers, J. Indian Inst. Sci., 1939, A22, 19-37. [all data]

Valentin F.H.H., 1950
Valentin F.H.H., Equilibrium and thermodynamic relation in the vapor-phase catalytic dehydration of ethyl alcohol to ethyl ether, J. Chem. Soc., 1950, 498-500. [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
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

Go To: Top, Gas phase thermochemistry data, Phase change data, Mass spectrum (electron ionization), References