Methyl Alcohol
- Formula: CH4O
- Molecular weight: 32.0419
- IUPAC Standard InChI: InChI=1S/CH4O/c1-2/h2H,1H3
- IUPAC Standard InChIKey: OKKJLVBELUTLKV-UHFFFAOYSA-N
- 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
View 3d structure (requires JavaScript / HTML 5) - Isotopologues:
- 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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- Other data available:
- Condensed phase thermochemistry data
- Phase change data
- 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
- Vibrational and/or electronic energy levels
- Gas Chromatography
- Fluid Properties
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Gas phase thermochemistry data
Go To: Top, 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:
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 |
|---|---|---|---|---|---|
| ΔfH°gas | -49. ± 3. | kcal/mol | AVG | N/A | Average of 9 values; Individual data points |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔcH°gas | -182.52 ± 0.048 | kcal/mol | Cm | Rossini, 1932 | Flame Calorimetry; Corresponding ΔfHºgas = -48.157 kcal/mol (simple calculation by NIST; no Washburn corrections); ALS |
Constant pressure heat capacity of gas
| Cp,gas (cal/mol*K) | Temperature (K) | Reference | Comment |
|---|---|---|---|
| 8.126 | 50. | Thermodynamics Research Center, 1997 | p=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 |
| 8.831 | 100. | ||
| 9.235 | 150. | ||
| 9.491 | 200. | ||
| 10.18 | 273.15 | ||
| 10.53 ± 0.007 | 298.15 | ||
| 10.56 | 300. | ||
| 12.34 | 400. | ||
| 14.27 | 500. | ||
| 16.06 | 600. | ||
| 17.65 | 700. | ||
| 19.06 | 800. | ||
| 20.30 | 900. | ||
| 21.40 | 1000. | ||
| 22.36 | 1100. | ||
| 23.21 | 1200. | ||
| 23.958 | 1300. | ||
| 24.613 | 1400. | ||
| 25.191 | 1500. | ||
| 26.34 | 1750. | ||
| 27.20 | 2000. | ||
| 27.84 | 2250. | ||
| 28.35 | 2500. | ||
| 28.7 | 2750. | ||
| 28.9 | 3000. |
Constant pressure heat capacity of gas
| Cp,gas (cal/mol*K) | Temperature (K) | Reference | Comment |
|---|---|---|---|
| 10.13 ± 0.30 | 279. | Stromsoe E., 1970 | Heat 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 |
| 11.46 ± 0.30 | 345.6 | ||
| 11.19 ± 0.28 | 347.35 | ||
| 11.01 ± 0.30 | 349.65 | ||
| 11.37 ± 0.28 | 356.55 | ||
| 11.17 ± 0.30 | 358.15 | ||
| 11.52 ± 0.30 | 358.85 | ||
| 11.67 ± 0.30 | 359.85 | ||
| 12.02 ± 0.30 | 368.15 | ||
| 11.71 ± 0.28 | 373.35 | ||
| 12.26 ± 0.30 | 382.15 | ||
| 12.22 ± 0.28 | 398.95 | ||
| 12.51 ± 0.30 | 401.15 | ||
| 12.27 ± 0.28 | 401.35 | ||
| 12.43 ± 0.10 | 403.2 | ||
| 12.72 ± 0.30 | 420.15 | ||
| 12.88 ± 0.28 | 431.45 | ||
| 13.09 ± 0.28 | 442.15 | ||
| 13.36 ± 0.30 | 442.65 | ||
| 13.39 ± 0.28 | 457.35 | ||
| 13.67 ± 0.10 | 464.0 | ||
| 13.80 ± 0.28 | 477.75 | ||
| 13.95 ± 0.28 | 485.05 | ||
| 14.23 ± 0.28 | 498.95 | ||
| 14.44 ± 0.30 | 521.2 | ||
| 14.68 ± 0.28 | 521.35 | ||
| 15.37 ± 0.28 | 555.95 | ||
| 15.88 ± 0.28 | 581.35 | ||
| 15.96 ± 0.28 | 585.35 |
Mass spectrum (electron ionization)
Go To: Top, Gas 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 by: NIST Mass Spectrometry Data Center, William E. Wallace, director
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- 72 |
| NIST MS number | 229809 |
References
Go To: Top, Gas phase thermochemistry 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.
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]
Notes
Go To: Top, Gas phase thermochemistry data, Mass spectrum (electron ionization), References
- Symbols used in this document:
Cp,gas Constant pressure heat capacity of gas ΔcH°gas Enthalpy of combustion of gas at standard conditions ΔfH°gas Enthalpy of formation of gas at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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