Ethanol

• Formula: C₂H₆O
• Molecular weight: 46.0684
• IUPAC Standard InChI: InChI=1S/C2H6O/c1-2-3/h3H,2H2,1H3 Copy

  
• IUPAC Standard InChIKey: LFQSCWFLJHTTHZ-UHFFFAOYSA-N Copy
• CAS Registry Number: 64-17-5
• Chemical structure:
  This structure is also available as a 2d Mol file or as a computed 3d SD file
  The 3d structure may be viewed using Java or Javascript.
• Isotopologues:
  • [2H6]ethanol
  • Ethanol-d1
  • C2H3D3O
  • Ethanol-d5
  • Ethanol-1,1-d2
• Other names: Ethyl alcohol; Alcohol; Alcohol anhydrous; Algrain; Anhydrol; Denatured ethanol; Ethyl hydrate; Ethyl hydroxide; Jaysol; Jaysol S; Methylcarbinol; SD Alchol 23-hydrogen; Tecsol; C2H5OH; Absolute ethanol; Cologne spirit; Fermentation alcohol; Grain alcohol; Molasses alcohol; Potato alcohol; Aethanol; Aethylalkohol; Alcohol, dehydrated; Alcool ethylique; Alcool etilico; Alkohol; Cologne spirits; Denatured alcohol CD-10; Denatured alcohol CD-5; Denatured alcohol CD-5a; Denatured alcohol SD-1; Denatured alcohol SD-13a; Denatured alcohol SD-17; Denatured alcohol SD-23a; Denatured alcohol SD-28; Denatured alcohol SD-3a; Denatured alcohol SD-30; Denatured alcohol SD-39b; Denatured alcohol SD-39c; Denatured alcohol SD-40m; Etanolo; Ethanol 200 proof; Ethyl alc; Etylowy alkohol; EtOH; NCI-C03134; Spirits of wine; Spirt; Alkoholu etylowego; Ethyl alcohol anhydrous; SD alcohol 23-hydrogen; UN 1170; Tecsol C; Alcare Hand Degermer; Absolute alcohol; Denatured alcohol; Ethanol, silent spirit; Ethylol; Punctilious ethyl alcohol; SD 3A
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• Information on this page:
  • Gas phase thermochemistry data
  • Condensed phase thermochemistry data
  • Phase change data
  • References
  • Notes
• Other data available:
  • Reaction thermochemistry data: reactions 1 to 50, reactions 51 to 77
  • Henry's Law data
  • Gas phase ion energetics data
  • Ion clustering data
  • IR Spectrum
  • Mass spectrum (electron ionization)
  • Gas Chromatography
• Data at other public NIST sites:
  • Computational Chemistry Comparison and Benchmark Database
  • Gas Phase Kinetics Database
  • X-ray Photoelectron Spectroscopy Database, version 5.0
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Gas phase thermochemistry data

Go To: Top, Condensed 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 as indicated in comments:
DRB - Donald R. Burgess, Jr.
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
GT - Glushko Thermocenter, Russian Academy of Sciences, Moscow

Constant pressure heat capacity of gas

Constant pressure heat capacity of gas

Condensed phase thermochemistry data

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 as indicated in comments:
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
DRB - Donald R. Burgess, Jr.
DH - Eugene S. Domalski and Elizabeth D. Hearing

Constant pressure heat capacity of liquid

Phase change data

Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry 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 as indicated in comments:
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny director
BS - Robert L. Brown and Stephen E. Stein
DH - Eugene S. Domalski and Elizabeth D. Hearing
AC - William E. Acree, Jr., James S. Chickos
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
DRB - Donald R. Burgess, Jr.
CAL - James S. Chickos, William E. Acree, Jr., Joel F. Liebman, Students of Chem 202 (Introduction to the Literature of Chemistry), University of Missouri -- St. Louis

Enthalpy of vaporization

Enthalpy of vaporization

Δ_vapH = A exp(-αT_r) (1 − T_r)^β
    Δ_vapH = Enthalpy of vaporization (at saturation pressure) (kJ/mol)
    T_r = reduced temperature (T / T_c)

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Antoine Equation Parameters

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

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Enthalpy of fusion

Entropy of fusion

Entropy of fusion

Enthalpy of phase transition

Entropy of phase transition

References

Go To: Top, Gas phase thermochemistry data, 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.

Rossini, 1932
Rossini, F.D., The heats of combustion of methyl and ethyl alcohols, J. Res. NBS, 1932, 8, 119-139. [all data]

Thermodynamics Research Center, 1997
Thermodynamics Research Center, Selected Values of Properties of Chemical Compounds., Thermodynamics Research Center, Texas A&M University, College Station, Texas, 1997. [all data]

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Zhuravlev E.Z., Isotopic effect on thermodynamic functions of some organic deuterocompounds in the ideal gas state, Tr. Khim. i Khim. Tekhnol., 1959, 2, 475-485. [all data]

Chermin H.A.G., 1961
Chermin H.A.G., Thermo data for petrochemicals. Part 28. Gaseous normal alcohols. The important thermo properties are presented for all the gaseous normal alcohols from methanol through n-decanol, Petrol. Refiner, 1961, 40 (4), 127-130. [all data]

Green J.H.S., 1961
Green J.H.S., Thermodynamic properties of organic oxygen compounds. Part 5. Ethyl alcohol, Trans. Faraday Soc., 1961, 57, 2132-2137. [all data]

Green J.H.S., 1961, 2
Green J.H.S., Thermodynamic properties of the normal alcohols C1-C12, J. Appl. Chem., 1961, 11, 397-404. [all data]

Chao J., 1986
Chao J., Ideal gas thermodynamic properties of simple alkanols, Int. J. Thermophys., 1986, 7, 431-442. [all data]

Gurvich, Veyts, et al., 1989
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Chao J., 1986, 2
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]

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Stromsoe E., Heat capacity of alcohol vapors at atmospheric pressure, J. Chem. Eng. Data, 1970, 15, 286-290. [all data]

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Bennewitz K., Molar heats of vapor organic compounds, Z. Phys. Chem. (Leipzig), 1938, B39, 126-144. [all data]

Eucken A., 1948
Eucken A., Rotational hindrance in ether and alcohol molecules on the basis of heat capacity determinations, Z. Elektrochem., 1948, 52, 195-204. [all data]

Barrow G.M., 1952
Barrow G.M., Heat capacity, gas imperfection, infrared spectra, and internal rotation barriers of ethyl alcohol, J. Chem. Phys., 1952, 20, 1739-1744. [all data]

Sinke G.C., 1953
Sinke G.C., The heat capacity of organic vapors. VIII. Data for some aliphatic alcohols using an improved flow calorimeter requiring only 25 ml of sample, J. Am. Chem. Soc., 1953, 75, 1815-1818. [all data]

Halford J.O., 1957
Halford J.O., Standard heat capacities of gaseous methanol, ethanol, methane and ethane at 279 K by thermal conductivity, J. Phys. Chem., 1957, 61, 1536-1539. [all data]

Counsell J.F., 1970
Counsell J.F., Thermodynamic properties of organic oxygen compounds. 24. Vapor heat capacities and enthalpies of vaporization of ethanol, 2-methyl-1-propanol, and 1-pentanol, J. Chem. Thermodyn., 1970, 2, 367-372. [all data]

Chao and Rossini, 1965
Chao, J.; Rossini, F.D., Heats of combustion, formation, and isomerization of nineteen alkanols, J. Chem. Eng. Data, 1965, 10, 374-379. [all data]

Rossini, 1934
Rossini, F.D., Heats of combustion and of formation of the normal aliphatic alcohols in the gaseous and liquid states, and the energies of their atomic linkages, J. Res. NBS, 1934, 13, 189-197. [all data]

Green, 1960
Green, J.H.S., Revision of the values of the heats of formation of normal alcohols, Chem. Ind. (London), 1960, 1215-1216. [all data]

Parks, 1925
Parks, G.S., Thermal data on organic compounds I. The heat capacities and free energies of methyl, ethyl and normal-butyl alcohols, J. Am. Chem. Soc., 1925, 47, 338-345. [all data]

Richards and Davis, 1920
Richards, T.W.; Davis, H.S., The heats of combustion of benzene, toluene, aliphatic alcohols, cyclohexanol, and other carbon compounds, J. Am. Chem. Soc., 1920, 42, 1599-1617. [all data]

Emery and Benedict, 1911
Emery, A.G.; Benedict, F.G., The heat of combustion of compounds of physiological importance, Am. J. Physiol., 1911, 28, 301-307. [all data]

Haida, Suga, et al., 1977
Haida, O.; Suga, H.; Seki, S., Calorimetric study of the glassy state. XII. Plural glass-transition phenomena of ethanol, J. Chem. Thermodynam., 1977, 9, 1133-1148. [all data]

Kelley, 1929
Kelley, K.K., The heat capacities of ethyl and hexyl alcohols from 16°K to 298°K and the corresponding entropies and free energies, J. Am. Chem. Soc., 1929, 51, 779-786. [all data]

Petrov, Peshekhodov, et al., 1989
Petrov, A.N.; Peshekhodov, P.B.; Al'per, G.A., Heat capacity of non-aqueous solutions of non-electrolyts with N,N-dimethylformamide as a base, Sbornik Nauch. Trud., Termodin. Rast. neelect., Ivanovo, Inst. nevod. rast., 1989, Akad. [all data]

Andreoli-Ball, Patterson, et al., 1988
Andreoli-Ball, L.; Patterson, D.; Costas, M.; Caceres-Alonso, M., Heat capacity and corresponding states in alkan-1-ol-n-alkane systems, J. Chem. Soc., Faraday Trans. 1, 1988, 84(11), 3991-4012. [all data]

Ogawa and Murakami, 1986
Ogawa, H.; Murakami, S., Excess isobaric heat capacities for water + alkanol mixtures at 298.15 K, Thermochim. Acta, 1986, 109, 145-154. [all data]

Tanaka, Toyama, et al., 1986
Tanaka, R.; Toyama, S.; Murakami, S., Heat capacities of {xCnH2n+1OH+(1-x)C7H16} for n = 1 to 6 at 298.15 K, J. Chem. Thermodynam., 1986, 18, 63-73. [all data]

Ogawa and Murakami, 1985
Ogawa, H.; Murakami, S., Flow microcalorimeter for heat capacities of solutions, Thermochim. Acta, 1985, 88, 255-260. [all data]

Stephens and Olson, 1984
Stephens, M.; Olson, J.D., Measurement of excess heat capacities by differential scanning calorimetry, Thermochim. Acta, 1984, 76, 79-85. [all data]

Zegers and Somsen, 1984
Zegers, H.C.; Somsen, G., Partial molar volumes and heat capacities in (dimethylformamide + an n-alkanol), J. Chem. Thermodynam., 1984, 16, 225-235. [all data]

Benson and D'Arcy, 1982
Benson, G.C.; D'Arcy, P.J., Excess isobaric heat capacities of water - n-alcohol mixtures, J. Chem. Eng. Data, 1982, 27, 439-442. [all data]

Villamanan, Casanova, et al., 1982
Villamanan, M.A.; Casanova, C.; Roux-Desgranges, G.; Grolier, J.-P.E., Thermochemical behavior of mixtures of n-alcohol + aliphatic ether: heat capacities and volumes at 298.15 K, Thermochim. Acta, 1982, 52, 279-283. [all data]

Brown and Ziegler, 1979
Brown, G.N., Jr.; Ziegler, W.T., Temperature dependence of excess thermodynamic properties of ethanol + n-heptane and 2-propanol + n-heptane solutions, J. Chem. Eng. Data, 1979, 24, 319-330. [all data]

Vesely, Zabransky, et al., 1979
Vesely, F.; Zabransky, M.; Svoboda, V.; Pick, J., The use of mixing calorimeter for measuring heat capacities of liquids, Coll. Czech. Chem. Commun., 1979, 44, 3529-3532. [all data]

Vesely, Svoboda, et al., 1977
Vesely, F.; Svoboda, V.; Pick, J., Heat capacities of some organic liquids determined with the mixing calorimeter, 1st Czech. Conf. Calorimetry (Lect. Short Commun.), 1977, C9-1-C9-4. [all data]

Fortier, Benson, et al., 1976
Fortier, J.-L.; Benson, G.C.; Picker, P., Heat capacities of some organic liquids determined with the Picker flow calorimeter, J. Chem. Thermodynam., 1976, 8, 289-299. [all data]

Fortier and Benson, 1976
Fortier, J.-L.; Benson, G.C., Excess heat capacities of binary liquid mixtures determined with a Picker flow calorimeter, J. Chem. Thermodynam., 1976, 8, 411-423. [all data]

Pedersen, Kay, et al., 1975
Pedersen, M.J.; Kay, W.B.; Hershey, H.C., Excess enthalpies, heat capacities, and excess heat capacities as a function of temperature in liquid mixtures of ethanol + toluene, ethanol + hexamethyldisiloxane, and hexamethyldisiloxane + toluene, J. Chem. Thermodynam., 1975, 7, 1107-1118. [all data]

Paz Andrade, Paz, et al., 1970
Paz Andrade, M.I.; Paz, J.M.; Recacho, E., Contribucion a la microcalorimetria de los calores especificos de solidos y liquidos, An. Quim., 1970, 66, 961-967. [all data]

Nikolaev, Rabinovich, et al., 1967
Nikolaev, P.N.; Rabinovich, I.B.; Lebedev, B.V., Specific heat of H- and D-ethyl alcohol in the interval 80-250K, Zhur. Fiz. Khim., 1967, 41, 1294-1299. [all data]

Hwa and Ziegler, 1966
Hwa, S.C.P.; Ziegler, W.T., Temperature dependence of excess thermodynamic properties of ethanol-methylcyclohexane and ethanol-toluene systems, J. Phys. Chem., 1966, 70(8), 2572-2593. [all data]

Rabinovich and Nikolaev, 1962
Rabinovich, I.B.; Nikolaev, P.N., Isotopic effect in the specific heat of some deutero compounds, Dokl. Akad. Nauk, 1962, SSSR 142, 1335-1338. [all data]

Swietoslawski and Zielenkiewicz, 1960
Swietoslawski, W.; Zielenkiewicz, A., Mean specific heat in homologous series of binary and ternary positive azeotropes, Bull. Acad. Pol. Sci. Ser. Sci. Chim., 1960, 8, 651-653. [all data]

Mazur, 1940
Mazur, V.J., On the specific heat of ethyl alcohol, Acta Phys. Polon., 1940, 8, 6-11. [all data]

Bykov, 1939
Bykov, V.T., Heat of mixing of liquids, Zhur. Fiz. Khim., 1939, 13, 1013-1019. [all data]

Ernst, Watkins, et al., 1936
Ernst, R.C.; Watkins, C.H.; Ruwe, H.H., The physical properties of the ternary system ethyl alcohol-glycerin-water, J. Phys. Chem., 1936, 40, 627-635. [all data]

Fiock, Ginnings, et al., 1931
Fiock, E.F.; Ginnings, D.C.; Holton, W.B., Calorimetric determinations of thermal properties of methyl alcohol, ethyl alcohol, and benzene, J. Res., 1931, NBS 6, 881-900. [all data]

Mitsukuri and Hara, 1929
Mitsukuri, S.; Hara, K., Specific heats of acetone, methyl-, ethyl-, and n-propyl-alcohols at low temperatures, Bull. Chem. Soc. Japan, 1929, 4, 77-81. [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]

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Willams, J.W.; Daniels, F., The specific heats of certain organic liquids at elevated temperatures, J. Am. Chem. Soc., 1924, 46, 903-917. [all data]

Gibson, Parks, et al., 1920
Gibson, G.E.; Parks, G.S.; Latimer, W.M., Entropy changes at low temperatures. II. Ethyl and propyl alcohols and their equal molal mixture, J. Am. Chem. Soc., 1920, 42, 1542-1550. [all data]

von Reis, 1881
von Reis, M.A., Die specifische Wärme flüssiger organischer Verbindungen und ihre Beziehung zu deren Moleculargewicht, Ann. Physik [3], 1881, 13, 447-464. [all data]

Gude and Teja, 1995
Gude, M.; Teja, A.S., Vapor-Liquid Critical Properties of Elements and Compounds. 4. Aliphatic Alkanols, J. Chem. Eng. Data, 1995, 40, 1025-1036. [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]

Mejia, Segura, et al., 2010
Mejia, Andres; Segura, Hugo; Cartes, Marcela, Vapor-Liquid Equilibria and Interfacial Tensions of the System Ethanol + 2-Methoxy-2-methylpropane, J. Chem. Eng. Data, 2010, 55, 1, 428-434, https://doi.org/10.1021/je9004068 . [all data]

Aucejo, Loras, et al., 1999
Aucejo, Antonio; Loras, Sonia; Muñoz, Rosa; Ordoñez, Luis Miguel, Isobaric vapor--liquid equilibrium for binary mixtures of 2-methylpentane+ethanol and +2-methyl-2-propanol, Fluid Phase Equilibria, 1999, 156, 1-2, 173-183, https://doi.org/10.1016/S0378-3812(99)00029-1 . [all data]

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Diogo, Hermínio P.; Santos, Rui C.; Nunes, Paulo M.; Minas da Piedade, Manuel E., Ebulliometric apparatus for the measurement of enthalpies of vaporization, Thermochimica Acta, 1995, 249, 113-120, https://doi.org/10.1016/0040-6031(95)90678-9 . [all data]

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Ortega, Juan; Susial, Pedro; De Alfonso, Casiano, Isobaric vapor-liquid equilibrium of methyl butanoate with ethanol and 1-propanol binary systems, J. Chem. Eng. Data, 1990, 35, 2, 216-219, https://doi.org/10.1021/je00060a037 . [all data]

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Vine, M.D.; Wormald, C.J., The enthalpy of ethanol, The Journal of Chemical Thermodynamics, 1989, 21, 11, 1151-1157, https://doi.org/10.1016/0021-9614(89)90101-8 . [all data]

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Dong, Jin-Quan; Lin, Rui-Sen; Yen, Wen-Hsing, Heats of vaporization and gaseous molar heat capacities of ethanol and the binary mixture of ethanol and benzene, Can. J. Chem., 1988, 66, 4, 783-790, https://doi.org/10.1139/v88-136 . [all data]

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Ambrose, Counsell, et al., 1970
Ambrose, D.; Counsell, J.F.; Davenport, A.J., The use of Chebyshev polynomials for the representation of vapour pressures between the triple point and the critical point, The Journal of Chemical Thermodynamics, 1970, 2, 2, 283-294, https://doi.org/10.1016/0021-9614(70)90093-5 . [all data]

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Counsell, Fenwick, et al., 1970
Counsell, J.F.; Fenwick, J.O.; Lees, E.B., Thermodynamic properties of organic oxygen compounds 24. Vapour heat capacities and enthalpies of vaporization of ethanol, 2-methylpropan-1-ol, and pentan-1-ol, The Journal of Chemical Thermodynamics, 1970, 2, 3, 367-372, https://doi.org/10.1016/0021-9614(70)90007-8 . [all data]

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Van Ness, Hendrick C.; Soczek, C.A.; Peloquin, G.L.; Machado, R.L., Thermodynamic excess properties of three alcohol-hydrocarbon systems, J. Chem. Eng. Data, 1967, 12, 2, 217-224, https://doi.org/10.1021/je60033a017 . [all data]

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Kretschmer, Carl B.; Wiebe, Richard., Liquid-Vapor Equilibrium of Ethanol--Toluene Solutions, J. Am. Chem. Soc., 1949, 71, 5, 1793-1797, https://doi.org/10.1021/ja01173a076 . [all data]

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Notes

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

• Symbols used in this document:
  

  Cp,gas	Constant pressure heat capacity of gas
  Cp,liquid	Constant pressure heat capacity of liquid
  Pc	Critical pressure
  S°liquid	Entropy of liquid at standard conditions
  Tboil	Boiling point
  Tc	Critical temperature
  Tfus	Fusion (melting) point
  Ttriple	Triple point temperature
  Vc	Critical volume
  ΔHtrs	Enthalpy of phase transition
  ΔStrs	Entropy of phase transition
  ΔcH°gas	Enthalpy of combustion of gas at standard conditions
  ΔcH°liquid	Enthalpy of combustion of liquid at standard conditions
  ΔfH°gas	Enthalpy of formation of gas at standard conditions
  ΔfH°liquid	Enthalpy of formation of liquid at standard conditions
  ΔfusH	Enthalpy of fusion
  ΔfusS	Entropy of fusion
  ΔvapH	Enthalpy of vaporization
  ΔvapH°	Enthalpy of vaporization at standard conditions
  ρc	Critical density

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