Acetamide

• Formula: C₂H₅NO
• Molecular weight: 59.0672
• IUPAC Standard InChI: InChI=1S/C2H5NO/c1-2(3)4/h1H3,(H2,3,4) Copy

  
• IUPAC Standard InChIKey: DLFVBJFMPXGRIB-UHFFFAOYSA-N Copy
• CAS Registry Number: 60-35-5
• 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.
• Other names: Acetic acid amide; Ethanamide; Methanecarboxamide; CH3CONH2; NCI-C02108; Amid kyseliny octove
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• Information on this page:
  • Gas phase thermochemistry data
  • Condensed phase thermochemistry data
  • Phase change data
  • Gas Chromatography
  • References
  • Notes
• Other data available:
  • Reaction thermochemistry data
  • Gas phase ion energetics data
  • Ion clustering data
  • IR Spectrum
  • Mass spectrum (electron ionization)
• 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

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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: Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein

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
DH - Eugene S. Domalski and Elizabeth D. Hearing

Constant pressure heat capacity of solid

Phase change 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:
BS - Robert L. Brown and Stephen E. Stein
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny director
AC - William E. Acree, Jr., James S. Chickos
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
DH - Eugene S. Domalski and Elizabeth D. Hearing

Reduced pressure boiling point

Enthalpy of vaporization

Antoine Equation Parameters

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

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Enthalpy of sublimation

Enthalpy of fusion

Entropy of fusion

Gas Chromatography

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

Van Den Dool and Kratz RI, non-polar column, temperature ramp

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Van Den Dool and Kratz RI, polar column, custom temperature program

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Normal alkane RI, non-polar column, temperature ramp

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Normal alkane RI, polar column, temperature ramp

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Normal alkane RI, polar column, custom temperature program

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References

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

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

Barnes and Pilcher, 1975
Barnes, D.S.; Pilcher, G., Enthalpies of combustion of ethanamide, propanamide, and butanamide, J. Chem. Thermodyn., 1975, 7, 377-382. [all data]

Nurachmetov, Beremzhanov, et al., 1985
Nurachmetov, N.N.; Beremzhanov, B.A.; Abramova, G.V.; Lebedev, B.V., Thermodynamics of (thio)amides and their compounds with mineral acids at (0-330)K, Thermochim. Acta, 1985, 92, 329-332. [all data]

Nurakhmeta, Beremzhanov, et al., 1984
Nurakhmeta, N.N.; Beremzhanov, B.A.; Abramova, G.V.; Lebedev, B.V., Thermodynamic properties of acetamide, thio-semicarbazide, and thiourea hydronitrate at (0-330) K, Probl. Kalorim. Khim. Termodin., Dokl. Vses. Konf., 10th, 1984, 2, 460-462. [all data]

Ciocazanu, Dogaru, et al., 1976
Ciocazanu, I.; Dogaru, V.; Zavoianu, D., Structure and reactivity of amides. Concerning the heats of combustion and formation of some unsaturated α, β amides derived from acetamide, Rev. Chim. (Bucharest), 1976, 27, 4-6. [all data]

Nurakhmetov, Beremzhanov, et al., 1984
Nurakhmetov, N.N.; Beremzhanov, B.A.; Abramova, G.V.; Lebedev, B.V., Thermodynamic properties of acetamide, thiosemicarbazide, and thiourea hydronitrate at (0-330) K, Probl. Kalorim. Khim. Termodin., Dokl. Vses. Konf., 10th, 1984, 2, 460-2. [all data]

Emons, Naumann, et al., 1986
Emons, H.H.; Naumann, R.; Jahn, K.; Flammersheim, H.J., Thermal properties of acetamide in the temperature range from 298 K to 400 K, Thermochim. Acta, 1986, 104, 127-137. [all data]

DeWit, DeKruif, et al., 1983
DeWit, H.G.M.; DeKruif, C.G.; Van Miltenburg, J.C., Thermodynamic properties of molecular organic crystals containing organic crystals containing nitrogen, oxygen, and sulfur. II. Molar heat capacities of eight compounds by adiabatic calorimetry, J. Chem. Thermodynam., 1983, 15, 891-902. [all data]

Skold, Suurkuusk, et al., 1976
Skold, R.; Suurkuusk, J.; Wadso, I., Thermochemistry of solutions of biochemical model compounds. 7. Aqueous solutions of some amides, t-butanol, and pentanol, J. Chem. Thermodynam., 1976, 8, 1075-1080. [all data]

Campbell and Campbell, 1940
Campbell, A.N.; Campbell, A.J.R., The heats of solution, heats of formation, specific heats and equilibrium diagrams of certain molecular compounds. J. Am. Chem. Soc., 1940, 62, 291-297. [all data]

De Wit, De Kruif, et al., 1983
De Wit, H.G.M.; De Kruif, C.G.; Van Miltenburg, J.C., Thermodynamic properties of molecular organic crystals containing nitrogen, oxygen, and sulfur II. Molar heat capacities of eight compounds by adiabatic calorimetry, J. Chem. Thermodyn., 1983, 15, 9, 891, https://doi.org/10.1016/0021-9614(83)90095-2 . [all data]

De Wit, Van Miltenburg, et al., 1983
De Wit, H.G.M.; Van Miltenburg, J.C.; De Kruif, C.G., Thermodynamic properties of molecular organic crystals containing nitrogen, oxygen, and sulphur 1. Vapour pressures and enthalpies of sublimation, The Journal of Chemical Thermodynamics, 1983, 15, 7, 651-663, https://doi.org/10.1016/0021-9614(83)90079-4 . [all data]

Morawetz, 1971
Morawetz, E., , Ph.D. Dissertation, University of Lund, 1971. [all data]

Wadsö, Borgen, et al., 1965
Wadsö, Ingemar; Borgen, Gerd L.; Sørensen, Georg Ole; Olsen, Gert; Jansen, Gert, Thermochemical Properties of Diacetamide, N-Butyldiacetamide and N-Phenyldiacetamide., Acta Chem. Scand., 1965, 19, 1079-1087, https://doi.org/10.3891/acta.chem.scand.19-1079 . [all data]

Wadso, 1965
Wadso, I., Thermochemical properties of diacetimide, N-butyldiacetimide and N-phenyldiacetimide, Acta Chem. Scand., 1965, 19, 1079-1087. [all data]

Buckingham and Donaghy, 1982
Buckingham, J.; Donaghy, S.M., Dictionary of Organic Compounds: Fifth Edition, Chapman and Hall, New York, 1982, 1. [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]

Stull, 1947
Stull, Daniel R., Vapor Pressure of Pure Substances. Organic and Inorganic Compounds, Ind. Eng. Chem., 1947, 39, 4, 517-540, https://doi.org/10.1021/ie50448a022 . [all data]

Davies, Jones, et al., 1959
Davies, M.; Jones, A.H.; Thomas, G.H., The lattice energies of the straight-chain primary amides, Trans. Faraday Soc., 1959, 55, 1100. [all data]

Nikolic, Tripkovic, et al., 1989
Nikolic, R.; Tripkovic, J.; Kerridge, D.H., Phase chages in acetamide-salt systems: Melting points and latent heat of fusion of pure acetamide and acetamide-ammonium chloride, Thermochim. Acta, 1989, 146, 353-360. [all data]

Domalski and Hearing, 1996
Domalski, Eugene S.; Hearing, Elizabeth D., Heat Capacities and Entropies of Organic Compounds in the Condensed Phase. Volume III, J. Phys. Chem. Ref. Data, 1996, 25, 1, 1, https://doi.org/10.1063/1.555985 . [all data]

de Lacy Costello, Evans, et al., 2001
de Lacy Costello, B.P.J.; Evans, P.; Ewen, R.J.; Gunson, H.E.; Jones, P.R.H.; Ratcliffe, N.M.; Spencer-Phillips, P.T.N., Gas chromatography-mass spectrometry analyses of volatile organic compounds from potato tubers inoculated with Phytophthora infestans or Fusarium coeruleum, Plant Pathol., 2001, 50, 4, 489-496, https://doi.org/10.1046/j.1365-3059.2001.00594.x . [all data]

Yasuhara, 1987
Yasuhara, A., Identification of Volatile Compounds in Poultry Manure by Gas Chromatography-Mass Spectrometry, J. Chromatogr., 1987, 387, 371-378, https://doi.org/10.1016/S0021-9673(01)94539-X . [all data]

Chen, Wang, et al., 1998
Chen, J.; Wang, M.; Ho, C.-T., Volatile compounds generated from thermal degradation of N-acetylglucosamine, J. Agric. Food Chem., 1998, 46, 8, 3207-3209, https://doi.org/10.1021/jf980129g . [all data]

Prososki, Etzel, et al., 2007
Prososki, R.A.; Etzel, M.R.; Rankin, S.A., Solvent type affects the number, distribution, and relative quantities of volatile compounds found in sweet whey powder, J. Dairy Sci., 2007, 90, 2, 523-531, https://doi.org/10.3168/jds.S0022-0302(07)71535-7 . [all data]

Wong and Bernhard, 1988
Wong, J.M.; Bernhard, R.A., Effect of nitrogen source on pyrazine formation, J. Agric. Food Chem., 1988, 36, 1, 123-129, https://doi.org/10.1021/jf00079a032 . [all data]

Kim. J.H., Ahn, et al., 2004
Kim. J.H.; Ahn, H.J.; Yook, H.S.; Kim, K.S.; Rhee, M.S.; Ryu, G.H.; Byun, M.W., Color, flavor, and sensory characteristics of gamma-irradiated salted and fermented anchovy sauce, Radiation Phys. Chem., 2004, 69, 2, 179-187, https://doi.org/10.1016/S0969-806X(03)00400-6 . [all data]

Peng, Yang, et al., 1991
Peng, C.T.; Yang, Z.C.; Ding, S.F., Prediction of rentention idexes. II. Structure-retention index relationship on polar columns, J. Chromatogr., 1991, 586, 1, 85-112, https://doi.org/10.1016/0021-9673(91)80028-F . [all data]

Notes

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

• Symbols used in this document:
  

  Cp,solid	Constant pressure heat capacity of solid
  S°solid,1 bar	Entropy of solid at standard conditions (1 bar)
  Tboil	Boiling point
  Tfus	Fusion (melting) point
  Ttriple	Triple point temperature
  ΔcH°solid	Enthalpy of combustion of solid at standard conditions
  ΔfH°gas	Enthalpy of formation of gas at standard conditions
  ΔfH°solid	Enthalpy of formation of solid at standard conditions
  ΔfusH	Enthalpy of fusion
  ΔfusS	Entropy of fusion
  ΔsubH	Enthalpy of sublimation
  ΔsubH°	Enthalpy of sublimation at standard conditions
  ΔvapH	Enthalpy of vaporization

• Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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