Methyl Alcohol

• Formula: CH₄O
• Molecular weight: 32.0419
• IUPAC Standard InChI: InChI=1S/CH4O/c1-2/h2H,1H3 Copy

  
• IUPAC Standard InChIKey: OKKJLVBELUTLKV-UHFFFAOYSA-N Copy
• CAS Registry Number: 67-56-1
• 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:
  • Methan-d3-ol
  • Methanol-o-d1
  • Methanol-D4
• Other names: Methanol; Carbinol; Methyl hydroxide; Methylol; Monohydroxymethane; Wood alcohol; CH3OH; Colonial spirit; Columbian spirit; Hydroxymethane; Wood naphtha; Alcool methylique; Alcool metilico; Columbian spirits; Metanolo; Methylalkohol; Metylowy alkohol; Pyroxylic spirit; Wood spirit; Rcra waste number U154; UN 1230; Pyro alcohol; Spirit of wood; Bieleski's solution; NSC 85232
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• Information on this page:
  • Gas phase thermochemistry data
  • Condensed phase thermochemistry data
  • Phase change data
  • Vibrational and/or electronic energy levels
  • References
  • Notes
• Other data available:
  • Reaction thermochemistry data: reactions 1 to 50, reactions 51 to 100, reactions 101 to 150, reactions 151 to 200, reactions 201 to 250, reactions 251 to 300
  • Henry's Law data
  • Gas phase ion energetics data
  • Ion clustering data
  • IR Spectrum
  • Mass spectrum (electron ionization)
  • Gas Chromatography
  • Fluid Properties
• Data at other public NIST sites:
  • Gas Phase Kinetics Database
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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
DRB - Donald R. Burgess, Jr.
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, Vibrational and/or electronic energy levels, 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

Constant pressure heat capacity of solid

Phase change data

Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Vibrational and/or electronic energy levels, 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
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) (kcal/mol)
    T_r = reduced temperature (T / T_c)

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Antoine Equation Parameters

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

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Enthalpy of fusion

Entropy of fusion

Entropy of fusion

Enthalpy of phase transition

Entropy of phase transition

Vibrational and/or electronic energy levels

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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 by: Takehiko Shimanouchi

Gas     Symmetry:   C_s     Symmetry Number σ = 1

Source: Shimanouchi, 1972

Liquid     Symmetry:   C_s     Symmetry Number σ = 1

Source: Shimanouchi, 1972

Notes

References

Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Vibrational and/or electronic energy levels, 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]

Ivash E.V., 1955
Ivash E.V., Thermodynamic properties of ideal gaseous methanol, J. Chem. Phys., 1955, 23, 1814-1818. [all data]

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Chen S.S., 1977
Chen S.S., Thermodynamic properties of normal and deuterated methanols, J. Phys. Chem. Ref. Data, 1977, 6, 105-112. [all data]

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

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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]

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

De Vries T., 1941
De Vries T., The heat capacity of organic vapors. I. Methyl alcohol, J. Am. Chem. Soc., 1941, 63, 1343-1346. [all data]

Weltner W., 1951
Weltner W., Jr., Methyl alcohol: the entropy, heat capacity and polymerization equilibria in the vapor, and potential barrier to internal rotation, J. Am. Chem. Soc., 1951, 73, 2606-2610. [all data]

Baroody and Carpenter, 1972
Baroody, E.E.; Carpenter, G.A., Heats of formation of propellant compounds (U), Rpt. Naval Ordnance Systems Command Task No. 331-003/067-1/UR2402-001 for Naval Ordance Station, Indian Head, MD, 1972, 1-9. [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]

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

Rossini, 1931
Rossini, F.D., The heat of combustion of methyl alcohol, Proc. Nat'l Acad. Sci., 1931, 17, 343-347. [all data]

Carlson and Westrum, 1971
Carlson, H.G.; Westrum, E.F., Jr., Methanol: heat capacity, enthalpies of transition and melting, and thermodynamic properties from 5-300K, J. Chem. Phys., 1971, 54, 1464-1471. [all data]

Kelley, 1929
Kelley, K.K., The heat capacity of methyl alcohol from 16K to 298K and the corresponding entropy and free energy, J. Am. Chem. Soc., 1929, 51, 180-187. [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]

Ahlberg, Blanchard, et al., 1937
Ahlberg, J.E.; Blanchard, E.R.; Lundberg, W.O., The heat capacities of benzene, methyl alcohol and glycerol at very low temperatures, J. Chem. Phys., 1937, 5, 537-551. [all data]

Filatov and Afanas'ev, 1992
Filatov, V.A.; Afanas'ev, V.N., Differential heat-flux calorimeter, Izv. Vysshikh. Uchebn. Zaved., Khim. Khim. Tekhnol., 1992, 35(8), 97-100. [all data]

Khasanshin and Zykova, 1989
Khasanshin, T.S.; Zykova, T.B., Specific heat of saturated monatomic alcohols, Inzh. -Fiz. Zhur., 1989, 56(6), 991-994. [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]

Okano, Ogawa, et al., 1988
Okano, T.; Ogawa, H.; Murakami, S., Molar excess volumes, isentropic compressions, and isobaric heat capacities of methanol-isomeric butanol systems at 298.15 K, Can. J. Chem., 1988, 66, 713-717. [all data]

Lankford and Criss, 1987
Lankford, J.I.; Criss, C.M., Partial molar heat caqpacities of selected electrolytes and benzene in methanol and dimethyldulfoxide at 25, 40 and 80°C, J. Solution Chem., 1987, 16(11), 885-906. [all data]

Korolev, Kukharenko, et al., 1986
Korolev, V.P.; Kukharenko, V.A.; Krestov, G.A., Specific heat of binary mixtures of aliphatic alcohols with N,N-dimethylformamide and dimethylsulphoxide, Zhur. Fiz. Khim., 1986, 60, 1854-1857. [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]

Costas and Patterson, 1985
Costas, M.; Patterson, D., Self-association of alcohols in inert solvents, J. Chem. Soc., Faraday Trans. 1, 1985, 81, 635-654. [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]

Atalla, El-Sharkawy, et al., 1981
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Deshpande and Bhatagadde, 1971
Deshpande, D.D.; Bhatagadde, L.G., Heat capacities at constant volume, free volumes, and rotational freedom in some liquids, Aust. J. Chem., 1971, 24, 1817-1822. [all data]

Paz Andrade, Paz, et al., 1970
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Katayama, 1962
Katayama, T., Heats of mixing, liquid heat capacities and enthalpy, concentration charts for methanol-water and isopropanol-water systems, Kagaku Kogaku, 1962, 26, 361-372. [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]

Hough, Mason, et al., 1950
Hough, E.W.; Mason, D.M.; Sage, B.H., Heat capacities of several organic liquids, J. Am. Chem. Soc., 1950, 72, 5775-5777. [all data]

Staveley and Gupta, 1949
Staveley, L.A.K.; Gupta, A.K., A semi-micro low-temperature calorimeter, and a comparison of some thermodynamic properties of methyl alcohol and methyl deuteroxide, Trans. Faraday Soc., 1949, 45, 50-61. [all data]

Phillip, 1939
Phillip, N.M., Adiabatic and isothermal compressibilities of liquids, Proc. Indian Acad. Sci., 1939, A9, 109-120. [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]

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]

Sugisaki, Suga, et al., 1968
Sugisaki, M.; Suga, H.; Seki, S., Calorimetric study of the glassy state. III. Novel type calorimeter for study of glassy state and heat capacity of glassy methanol, Bull. Chem. Soc. Japan, 1968, 41, 2586-2591. [all data]

Maass and Walbauer, 1925
Maass, O.; Walbauer, L.J., The specific heats and latent heats of fusion of ice and of several organic compounds, J. Am. Chem. Soc., 1925, 47, 1-9. [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]

Craven and de Reuck, 1986
Craven, R.J.B.; de Reuck, K.M., Ideal-Gas and Saturation Properties of Methanol, Int. J. Thermophys., 1986, 7, 541. [all data]

Francesconi, Lentz, et al., 1981
Francesconi, A.Z.; Lentz, H.; Franck, E.U., Phase Equilibriums and PVT Data for the Methane-Methanol System to 300 MPa and 240 degree C, J. Phys. Chem., 1981, 85, 3303. [all data]

Zubarev and Bagdonas, 1969
Zubarev, V.N.; Bagdonas, A., Saturation Curve Properties and Specific Volumes of Methanol, Teploenergetika (Moscow), 1969, 16, 88-91. [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
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Yerlett and Wormald, 1986
Yerlett, T.K.; Wormald, C.J., The enthalpy of methanol, The Journal of Chemical Thermodynamics, 1986, 18, 8, 719-726, https://doi.org/10.1016/0021-9614(86)90105-9 . [all data]

Cervenkova and Boublik, 1984
Cervenkova, Irena; Boublik, Tomas, Vapor pressure, refractive indexes and densities at 20.0.degree.C, and vapor-liquid equilibrium at 101.325 kPa in the tert-amyl methyl ether-methanol system, J. Chem. Eng. Data, 1984, 29, 4, 425-427, https://doi.org/10.1021/je00038a017 . [all data]

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Gibbard, H. Frank; Creek, Jefferson L., Vapor pressure of methanol from 288.15 to 337.65.deg.K, J. Chem. Eng. Data, 1974, 19, 4, 308-310, https://doi.org/10.1021/je60063a013 . [all data]

Boublik, Fried, et al., 1984
Boublik, T.; Fried, V.; Hala, E., The Vapour Pressures of Pure Substances: Selected Values of the Temperature Dependence of the Vapour Pressures of Some Pure Substances in the Normal and Low Pressure Region, 2nd ed., Elsevier, New York, 1984, 972. [all data]

Counsell and Lee, 1973
Counsell, J.F.; Lee, D.A., Thermodynamic properties of organic oxygen compounds 31. Vapour heat capacity and enthalpy of vaporization of methanol, The Journal of Chemical Thermodynamics, 1973, 5, 4, 583-589, https://doi.org/10.1016/S0021-9614(73)80107-7 . [all data]

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Svoboda, V.; Veselý, F.; Holub, R.; Pick, J., Enthalpy data of liquids. II. The dependence of heats of vaporization of methanol, propanol, butanol, cyclohexane, cyclohexene, and benzene on temperature, Collect. Czech. Chem. Commun., 1973, 38, 12, 3539-3543, https://doi.org/10.1135/cccc19733539 . [all data]

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Wilhoit, R.C.; Zwolinski, B.J., Physical and thermodynamic properties of aliphatic alcohols, J. Phys. Chem. Ref. Data Suppl., 1973, 1, 2, 1. [all data]

Boublík and Aim, 1972
Boublík, T.; Aim, K., Heats of vaporization of simple non-spherical molecule compounds, Collect. Czech. Chem. Commun., 1972, 37, 11, 3513-3521, https://doi.org/10.1135/cccc19723513 . [all data]

Ambrose and Sprake, 1970
Ambrose, D.; Sprake, C.H.S., Thermodynamic properties of organic oxygen compounds XXV. Vapour pressures and normal boiling temperatures of aliphatic alcohols, The Journal of Chemical Thermodynamics, 1970, 2, 5, 631-645, https://doi.org/10.1016/0021-9614(70)90038-8 . [all data]

Hirata, Suda, et al., 1967
Hirata, Mitsuho; Suda, Seijiro; Onodera, Yutaka, Vapor Pressure of Methanol in High Pressure Regions, Chemical engineering, 1967, 31, 4, 339-342,a1, https://doi.org/10.1252/kakoronbunshu1953.31.339 . [all data]

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Ambrose, Sprake, et al., 1975
Ambrose, D.; Sprake, C.H.S.; Townsend, R., Thermodynamic Properties of Organic Oxygen Compounds. XXXVII. Vapour Pressures of Methanol, Ethanol, Pentan-1-ol, and Octan-1-ol from the Normal Boiling Temperature to the Critical Temperature, J. Chem. Thermodyn., 1975, 7, 2, 185-190, https://doi.org/10.1016/0021-9614(75)90267-0 . [all data]

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Hirata, M.; Suda, S., Vapor Pressure on Methanol in High Pressure Regions, Kagaku Kogaku, 1967, 31, 4, 339-342, https://doi.org/10.1252/kakoronbunshu1953.31.339 . [all data]

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Notes

Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Vibrational and/or electronic energy levels, References

• Symbols used in this document:
  

  Cp,gas	Constant pressure heat capacity of gas
  Cp,liquid	Constant pressure heat capacity of liquid
  Cp,solid	Constant pressure heat capacity of solid
  Pc	Critical pressure
  S°liquid	Entropy of liquid at standard conditions
  S°solid,1 bar	Entropy of solid at standard conditions (1 bar)
  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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