Formamide - The NIST WebBook

Formamide

• Formula: CH3NO
• Molecular weight: 45.0406
• IUPAC Standard InChI: InChI=1S/CH3NO/c2-1-3/h1H,(H2,2,3) Copy
• IUPAC Standard InChIKey: ZHNUHDYFZUAESO-UHFFFAOYSA-N Copy
• 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 View 3d structure (requires JavaScript / HTML 5)
• Other names: Carbamaldehyde; Methanamide; HCONH2; Amid kyseliny mravenci; Formimidic acid
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• Information on this page:
  • Condensed phase thermochemistry data
  • References
  • Notes
• Other data available:
  • Gas phase thermochemistry data
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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

Quantity	Value	Units	Method	Reference	Comment
ΔfH°liquid	-251.	kJ/mol	Eqk	Bauder and Gunthard, 1958	ALS

Constant pressure heat capacity of liquid

Cp,liquid (J/mol*K)	Temperature (K)	Reference	Comment
107.61	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
107.9	298.15	De Visser, Heuvelsland, et al., 1978	DH
108.11	298.15	Vorob'ev, Privalova, et al., 1977	DH
107.	298.15	Bonner and Cerutti, 1976	DH
107.62	298.15	Skold, Suurkuusk, et al., 1976	DH
108.11	298.15	de Visser and Somsen, 1974	DH
105.2	293.	Rastorguev and Ganiev, 1967	T = 293 to 373 K.; DH
107.6	298.	Somsen and Coops, 1965	One temperature; DH

References

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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, Condensed phase thermochemistry data, References

• Symbols used in this document:

  Cp,liquid	Constant pressure heat capacity of liquid
  ΔfH°liquid	Enthalpy of formation of liquid at standard conditions

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