Acetamide - The NIST WebBook
- 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
- Permanent link for this species. Use this link for bookmarking this species for future reference.
- Information on this page:
- Condensed phase thermochemistry data
- References
- Notes
- Other data available:
- Gas phase thermochemistry data
- Phase change data
- Reaction thermochemistry data
- Gas phase ion energetics data
- Ion clustering data
- IR Spectrum
- Mass spectrum (electron ionization)
- Gas Chromatography
- Data at other public NIST sites:
- Gas Phase Kinetics Database
- X-ray Photoelectron Spectroscopy Database, version 5.0
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- NIST / TRC Web Thermo Tables, professional edition (thermophysical and thermochemical data)
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Condensed phase thermochemistry data
Go To: Top, 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 DH - Eugene S. Domalski and Elizabeth D. Hearing
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔfH°solid | -315.6 ± 0.82 | kJ/mol | Ccr | Nurachmetov, Beremzhanov, et al., 1985 | see Nurakhmeta, Beremzhanov, et al., 1984; ALS |
ΔfH°solid | -310.1 | kJ/mol | Ccb | Ciocazanu, Dogaru, et al., 1976 | ALS |
ΔfH°solid | -316.99 ± 0.70 | kJ/mol | Ccb | Barnes and Pilcher, 1975 | ALS |
Quantity | Value | Units | Method | Reference | Comment |
ΔcH°solid | -1186.03 ± 0.82 | kJ/mol | Ccr | Nurachmetov, Beremzhanov, et al., 1985 | see Nurakhmeta, Beremzhanov, et al., 1984; ALS |
ΔcH°solid | -1191.5 | kJ/mol | Ccb | Ciocazanu, Dogaru, et al., 1976 | ALS |
ΔcH°solid | -1184.60 ± 0.69 | kJ/mol | Ccb | Barnes and Pilcher, 1975 | ALS |
Quantity | Value | Units | Method | Reference | Comment |
S°solid,1 bar | 115.0 | J/mol*K | N/A | Nurachmetov, Beremzhanov, et al., 1985 | DH |
S°solid,1 bar | 115.0 | J/mol*K | N/A | Nurakhmetov, Beremzhanov, et al., 1984 | DH |
Constant pressure heat capacity of solid
Cp,solid (J/mol*K) | Temperature (K) | Reference | Comment |
---|---|---|---|
86.65 | 298. | Emons, Naumann, et al., 1986 | T = 298 to 400 K. Cp data given at 298 K as 1.467 kJ/kg*K (extrapolated). Cp = 1.481 + 0.0069(T-300) kJ/kg*K (300 to 330).; DH |
91.27 | 298.15 | Nurachmetov, Beremzhanov, et al., 1985 | T = 13 to 330 K.; DH |
91.27 | 298.15 | Nurakhmetov, Beremzhanov, et al., 1984 | T = 8 to 330 K.; DH |
90.00 | 300. | DeWit, DeKruif, et al., 1983 | T = 90 to 360 K.; DH |
90.3 | 298.15 | Skold, Suurkuusk, et al., 1976 | DH |
66.5 | 293. | Campbell and Campbell, 1940 | DH |
References
Go To: Top, Condensed phase thermochemistry data, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
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]
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]
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]
Notes
Go To: Top, Condensed phase thermochemistry data, 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) ΔcH°solid Enthalpy of combustion of solid at standard conditions ΔfH°solid Enthalpy of formation of solid at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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