Formamide
- Formula: CH3NO
- Molecular weight: 45.0406
- IUPAC Standard InChI: InChI=1S/CH3NO/c2-1-3/h1H,(H2,2,3)
- IUPAC Standard InChIKey: ZHNUHDYFZUAESO-UHFFFAOYSA-N
- CAS Registry Number: 75-12-7
- 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: Carbamaldehyde; Methanamide; HCONH2; Amid kyseliny mravenci; Formimidic acid
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Gas phase thermochemistry data
Go To: Top, Condensed 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: Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔfH°gas | -44.5 | kcal/mol | Eqk | Bauder and Gunthard, 1958 |
Condensed phase thermochemistry data
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 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°liquid | -60.0 | kcal/mol | Eqk | Bauder and Gunthard, 1958 | ALS |
Constant pressure heat capacity of liquid
| Cp,liquid (cal/mol*K) | Temperature (K) | Reference | Comment |
|---|---|---|---|
| 25.719 | 298.15 | DeWit, DeKruif, et al., 1983 | T = 90 to 290 K. Cp = 89.88 + 0.05947 (T/K) J/mol*K (275 to 300 K).; DH |
| 25.79 | 298.15 | De Visser, Heuvelsland, et al., 1978 | DH |
| 25.839 | 298.15 | Vorob'ev, Privalova, et al., 1977 | DH |
| 25.6 | 298.15 | Bonner and Cerutti, 1976 | DH |
| 25.722 | 298.15 | Skold, Suurkuusk, et al., 1976 | DH |
| 25.839 | 298.15 | de Visser and Somsen, 1974 | DH |
| 25.14 | 293. | Rastorguev and Ganiev, 1967 | T = 293 to 373 K.; DH |
| 25.72 | 298. | Somsen and Coops, 1965 | One temperature; DH |
References
Go To: Top, Gas phase thermochemistry data, 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.
Bauder and Gunthard, 1958
Bauder, A.; Gunthard, Hs.H.,
Thermodynamische Eigenschaften von Formamid,
Helv. Chim. Acta, 1958, 41, 670-673. [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]
De Visser, Heuvelsland, et al., 1978
De Visser, C.; Heuvelsland, W.J.M.; Dunn, L.A.; Somsen, G.,
Some properties of binary aqueous liquid mixtures, J. Chem. Soc.,
Faraday Trans.1, 1978, 74, 1159-1169. [all data]
Vorob'ev, Privalova, et al., 1977
Vorob'ev, A.F.; Privalova, N.M.; Rekharskii, M.V.,
Hermetically sealed calorimeter with automatic adiabatic enclosure for determining the specific heats of liquids,
Zhur. Fiz. Khim., 1977, 51, 1843-1846. [all data]
Bonner and Cerutti, 1976
Bonner, O.D.; Cerutti, P.J.,
The partial molar heat capacities of some solutes in water and deuterium oxide,
J. Chem. Thermodynam., 1976, 8, 105-111. [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]
de Visser and Somsen, 1974
de Visser, C.; Somsen, G.,
Molar heat capacities of binary mixtures of water and some amides at 298.15 K,
Z. Physik. Chem. [N.F.], 1974, 92, 159-162. [all data]
Rastorguev and Ganiev, 1967
Rastorguev, Yu.L.; Ganiev, Yu.A.,
Study of the heat capacity of selected solvents,
Izv. Vyssh. Uchebn. Zaved. Neft Gaz. 10, 1967, No.1, 79-82. [all data]
Somsen and Coops, 1965
Somsen, G.; Coops, J.,
Enthalpies of solvation of alkali halides in formamide. I. The enthalpies of solution of alkali halides in formamide,
Rec. Trav. chim., 1965, 84, 985-1002. [all data]
Notes
Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, References
- Symbols used in this document:
Cp,liquid Constant pressure heat capacity of liquid ΔfH°gas Enthalpy of formation of gas at standard conditions ΔfH°liquid Enthalpy of formation of liquid at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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