Methyl Alcohol

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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

Quantity Value Units Method Reference Comment
Δfgas-205. ± 10.kJ/molAVGN/AAverage of 9 values; Individual data points
Quantity Value Units Method Reference Comment
Δcgas-763.68 ± 0.20kJ/molCmRossini, 1932Flame Calorimetry; Corresponding Δfgas = -201.49 kJ/mol (simple calculation by NIST; no Washburn corrections); ALS

Constant pressure heat capacity of gas

Cp,gas (J/mol*K) Temperature (K) Reference Comment
34.0050.Thermodynamics Research Center, 1997p=1 bar. Recommended entropies and heat capacities are in good agreement with other statistically calculated values [ Ivash E.V., 1955, Zhuravlev E.Z., 1959, Chen S.S., 1977, Chao J., 1986, Gurvich, Veyts, et al., 1989]. Please also see Chao J., 1986, 2.; GT
36.95100.
38.64150.
39.71200.
42.59273.15
44.06 ± 0.03298.15
44.17300.
51.63400.
59.70500.
67.19600.
73.86700.
79.76800.
84.95900.
89.541000.
93.571100.
97.121200.
100.241300.
102.981400.
105.401500.
110.21750.
113.82000.
116.52250.
118.62500.
120.2750.
121.3000.

Constant pressure heat capacity of gas

Cp,gas (J/mol*K) Temperature (K) Reference Comment
42.4 ± 1.3279.Stromsoe E., 1970Heat capacity at 279 K was obtained by thermal conductivity [ Halford J.O., 1957]. Vapor heat capacities from calorimetric measurements [ De Vries T., 1941] were converted to the ideal gas heat capacities by corrections for the gas imperfection effects [ Chen S.S., 1977, Chao J., 1986, 2]. Ideal gas heat capacities are given by [ Stromsoe E., 1970] as a linear function Cp=f1*(a+bT). This expression approximates the experimental values with the average deviation of 1.17 J/mol*K. The accuracy of the experimental heat capacities [ Stromsoe E., 1970] is estimated as less than 0.3%. Please also see De Vries T., 1941, Weltner W., 1951, Halford J.O., 1957.; GT
48.0 ± 1.3345.6
46.8 ± 1.2347.35
46.1 ± 1.3349.65
47.6 ± 1.2356.55
46.7 ± 1.3358.15
48.2 ± 1.3358.85
48.8 ± 1.3359.85
50.3 ± 1.3368.15
49.0 ± 1.2373.35
51.3 ± 1.3382.15
51.1 ± 1.2398.95
52.3 ± 1.3401.15
51.3 ± 1.2401.35
52.01 ± 0.42403.2
53.2 ± 1.3420.15
53.9 ± 1.2431.45
54.8 ± 1.2442.15
55.9 ± 1.3442.65
56.0 ± 1.2457.35
57.20 ± 0.42464.0
57.8 ± 1.2477.75
58.4 ± 1.2485.05
59.5 ± 1.2498.95
60.4 ± 1.3521.2
61.4 ± 1.2521.35
64.3 ± 1.2555.95
66.4 ± 1.2581.35
66.8 ± 1.2585.35

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
DRB - Donald R. Burgess, Jr.
DH - Eugene S. Domalski and Elizabeth D. Hearing

Quantity Value Units Method Reference Comment
Δfliquid-238.4kJ/molCcrBaroody and Carpenter, 1972ALS
Δfliquid-239.5 ± 0.2kJ/molCcbChao and Rossini, 1965see Rossini, 1934; ALS
Δfliquid-238.9 ± 3.6kJ/molCcbGreen, 1960Reanalyzed by Cox and Pilcher, 1970, Original value = -238.5 ± 0.2 kJ/mol; ALS
Δfliquid-250.6kJ/molCcbParks, 1925ALS
Δfliquid-251.3 ± 5.0kJ/molCcbRichards and Davis, 1920DRB
Quantity Value Units Method Reference Comment
Δcliquid-725.7 ± 0.1kJ/molCcbChao and Rossini, 1965see Rossini, 1934; Corresponding Δfliquid = -239.5 kJ/mol (simple calculation by NIST; no Washburn corrections); ALS
Δcliquid-726.5 ± 0.2kJ/molCcbGreen, 1960Corresponding Δfliquid = -238.7 kJ/mol (simple calculation by NIST; no Washburn corrections); ALS
Δcliquid-726.34 ± 0.20kJ/molCcbRossini, 1931Corresponding Δfliquid = -238.83 kJ/mol (simple calculation by NIST; no Washburn corrections); ALS
Δcliquid-715.05kJ/molCcbParks, 1925Corresponding Δfliquid = -250.1 kJ/mol (simple calculation by NIST; no Washburn corrections); ALS
Δcliquid-713.83kJ/molCcbRichards and Davis, 1920At 291 K; Corresponding Δfliquid = -251.34 kJ/mol (simple calculation by NIST; no Washburn corrections); ALS
Quantity Value Units Method Reference Comment
liquid127.19J/mol*KN/ACarlson and Westrum, 1971DH
liquid126.8J/mol*KN/AKelley, 1929DH
liquid129.7J/mol*KN/AParks, Kelley, et al., 1929Extrapolation below 90 K, 34.3 J/mol*K. Revision of previous data.; DH
liquid136.4J/mol*KN/AParks, 1925Extrapolation below 90 K, 40.75 J/mol*K.; DH
Quantity Value Units Method Reference Comment
solid,1 bar1.117J/mol*KN/AAhlberg, Blanchard, et al., 1937DH

Constant pressure heat capacity of liquid

Cp,liquid (J/mol*K) Temperature (K) Reference Comment
79.5298.15Filatov and Afanas'ev, 1992DH
81.11298.15Khasanshin and Zykova, 1989T = 175 to 338 K. Unsmoothed experimental datum.; DH
80.24298.15Andreoli-Ball, Patterson, et al., 1988DH
80.35298.15Okano, Ogawa, et al., 1988DH
81.0298.15Lankford and Criss, 1987DH
81.32298.Korolev, Kukharenko, et al., 1986DH
80.28298.15Ogawa and Murakami, 1986DH
81.56298.15Tanaka, Toyama, et al., 1986DH
80.22298.15Costas and Patterson, 1985T = 298.15, 313.15 K.; DH
81.47298.15Zegers and Somsen, 1984DH
78.90288.15Benson and D'Arcy, 1982DH
81.92298.15Villamanan, Casanova, et al., 1982DH
80.8293.15Atalla, El-Sharkawy, et al., 1981DH
81.13298.15Carlson and Westrum, 1971T = 5 to 332 K.; DH
83.7298.Deshpande and Bhatagadde, 1971T = 298 to 318 K.; DH
85.8313.2Paz Andrade, Paz, et al., 1970DH
85.8298.2Katayama, 1962T = 10 to 60°C.; DH
80.8311.Swietoslawski and Zielenkiewicz, 1960Mean value 21 to 56°C.; DH
86.2323.Hough, Mason, et al., 1950T = 323 to 353 K.; DH
75.77270.Staveley and Gupta, 1949T = 90 to 270 K.; DH
86.6300.8Phillip, 1939DH
83.56313.15Fiock, Ginnings, et al., 1931T = 40 to 110°C.; DH
79.9292.0Kelley, 1929T = 16 to 293 K. Value is unsmoothed experimental datum.; DH
78.2270.Mitsukuri and Hara, 1929T = 190 to 270 K.; DH
79.9290.1Parks, 1925T = 89 to 290 K. Value is unsmoothed experimental datum.; DH
83.3298.von Reis, 1881T = 288 to 335 K.; DH

Constant pressure heat capacity of solid

Cp,solid (J/mol*K) Temperature (K) Reference Comment
68.39120.Sugisaki, Suga, et al., 1968glass phase; T = 20 to 120 K.; DH
5.4020.5Ahlberg, Blanchard, et al., 1937T = 5 to 28 K.; DH
105.173.Maass and Walbauer, 1925T = 93 to 173 K.; DH

IR Spectrum

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Data compiled by: Coblentz Society, Inc.

Data compiled by: Tanya L. Myers, Russell G. Tonkyn, Ashley M. Oeck, Tyler O. Danby, John S. Loring, Matthew S. Taubman, Stephen W. Sharpe, Jerome C. Birnbaum, and Timothy J. Johnson

Data compiled by: Pamela M. Chu, Franklin R. Guenther, George C. Rhoderick, and Walter J. Lafferty


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:   Cs     Symmetry Number σ = 1


 Sym.   No   Approximate   Selected Freq.  Infrared   Raman   Comments 
 Species   type of mode   Value   Rating   Value  Phase  Value  Phase

a' 1 OH str 3681  A 3681 M gas
a' 2 CH3 d-str 3000  C 3000 M gas
a' 3 CH3 s-str 2844  A 2844 S gas
a' 4 CH3 d-deform 1477  B 1477 M gas OV10)
a' 5 CH3 s-deform 1455  A 1455 M gas
a' 6 OH bend 1345  B 1345 S gas
a' 7 CH3 rock 1060  D 1060 W gas OV8)
a' 8 CO str 1033  A 1033 VS gas 1032 gas
a 9 CH3 d-str 2960  C 2960 S gas 2955 gas
a 10 CH3 d-deform 1477  B 1477 M gas OV4)
a 11 CH3 rock 1165  C 1165 liq.
a 12 Torsion 295  A 80~300 gas ?/? Value of ν12 is undefined because of large coupling between internal & overall rotations.
a 12 Torsion 200  E 80~300 gas ?/? Value of ν12 is undefined because of large coupling between internal & overall rotations.

Source: Shimanouchi, 1972

Liquid     Symmetry:   Cs     Symmetry Number σ = 1


 Sym.   No   Approximate   Selected Freq.  Infrared   Raman   Comments 
 Species   type of mode   Value   Rating   Value  Phase  Value  Phase

a' 1 OH str 3328  D 3328 vb liq. 3270-3480 liq.
a' 2 CH3 d-str 2980  C 2980 M liq. 2993 liq.
a' 3 CH3 s-str 2834  C 2834 S liq. 2834 liq.
a' 4 CH3 d-deform 1480  C 1480 M liq. 1464 liq. OV10)
a' 5 CH3 s-deform 1450  C 1450 M liq.
a' 6 OH bend 1418  C 1418 M b liq.
a' 7 CH3 rock 1115  C 1115 M liq. 1107 liq.
a' 8 CO str 1030  C 1030 VS liq. 1033 liq.
a 9 CH3 d-str 2946  C 2946 S liq. 2940 liq.
a 10 CH3 d-deform 1480  C 1480 M liq. 1464 liq. OV4)
a 11 CH3 rock 1165  C 1165 liq.
a 12 Torsion 655  D 655 vb liq.

Source: Shimanouchi, 1972

Notes

VSVery strong
SStrong
MMedium
WWeak
bBroad
vbVery broad
OVOverlapped by band indicated in parentheses.
A0~1 cm-1 uncertainty
B1~3 cm-1 uncertainty
C3~6 cm-1 uncertainty
D6~15 cm-1 uncertainty
E15~30 cm-1 uncertainty

References

Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, IR Spectrum, 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]

Zhuravlev E.Z., 1959
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]

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]

Gurvich, Veyts, et al., 1989
Gurvich, L.V.; Veyts, I.V.; Alcock, C.B., Thermodynamic Properties of Individual Substances, 4th ed.; Vols. 1 and 2, Hemisphere, New York, 1989. [all data]

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]

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
Atalla, S.R.; El-Sharkawy, A.A.; Gasser, F.A., Measurement of thermal properties of liquids with an AC heated-wire technique, Inter. J. Thermophys., 1981, 2(2), 155-162. [all data]

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
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]

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]

Shimanouchi, 1972
Shimanouchi, T., Tables of Molecular Vibrational Frequencies Consolidated Volume I, National Bureau of Standards, 1972, 1-160. [all data]


Notes

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