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Formamide

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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:
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Kenneth Kroenlein 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

Quantity Value Units Method Reference Comment
Tfus275.7KN/ATimmermans and Hennaut-Roland, 1935Uncertainty assigned by TRC = 0.1 K; TRC
Tfus275.KN/ATimmermans, 1935Uncertainty assigned by TRC = 1.5 K; TRC
Tfus275.7KN/AJoukovsky, 1934Uncertainty assigned by TRC = 1.5 K; TRC
Quantity Value Units Method Reference Comment
Ttriple275.60KN/ADe Wit, De Kruif, et al., 1983Uncertainty assigned by TRC = 0.02 K; TRC
Ttriple275.72KN/ASomsen and Coops, 1965Uncertainty assigned by TRC = 0.02 K; TRC
Quantity Value Units Method Reference Comment
Deltavap60.15kJ/molN/AMajer and Svoboda, 1985 
Deltavap60.2kJ/molABarone, Castronuovo, et al., 1985See also Majer and Svoboda, 1985, 2.; AC
Deltavap64.978kJ/molVBauder and Gunthard, 1958ALS
Quantity Value Units Method Reference Comment
Deltasub71.7kJ/molN/ADe Wit, Van Miltenburg, et al., 1983AC

Enthalpy of vaporization

DeltavapH (kJ/mol) Temperature (K) Method Reference Comment
70.8308.AStephenson and Malanowski, 1987Based on data from 293. - 377. K.; AC
61.2430.AStephenson and Malanowski, 1987Based on data from 415. - 466. K.; AC
64.0358.N/AStull, 1947Based on data from 343. - 483. K.; AC

Antoine Equation Parameters

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

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Temperature (K) A B C Reference Comment
343.7 - 483.77.58523881.30527.655Stull, 1947Coefficents calculated by NIST from author's data.

Enthalpy of sublimation

DeltasubH (kJ/mol) Temperature (K) Method Reference Comment
72.4264.TE,MEDe Wit, Van Miltenburg, et al., 1983Based on data from 251. - 273. K.; AC
71.7276.N/ADaamen, van der Poel, et al., 1979AC

Enthalpy of fusion

DeltafusH (kJ/mol) Temperature (K) Reference Comment
8.667275.60DeWit, DeKruif, et al., 1983DH
7.980275.72Somsen and Coops, 1965DH
7.98275.7Domalski and Hearing, 1996AC
8.67275.6De Wit, De Kruif, et al., 1983, 2AC

Entropy of fusion

DeltafusS (J/mol*K) Temperature (K) Reference Comment
31.448275.60DeWit, DeKruif, et al., 1983DH
28.94275.72Somsen and Coops, 1965DH

In addition to the Thermodynamics Research Center (TRC) data available from this site, much more physical and chemical property data is available from the following TRC products:


References

Go To: Top, Phase change data, Notes

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

Timmermans and Hennaut-Roland, 1935
Timmermans, J.; Hennaut-Roland, M., Physical constants of 20 organic compounds. VII., J. Chim. Phys. Phys.-Chim. Biol., 1935, 32, 501. [all data]

Timmermans, 1935
Timmermans, J., Researches in Stoichiometry. I. The Heat of Fusion of Organic Compounds., Bull. Soc. Chim. Belg., 1935, 44, 17-40. [all data]

Joukovsky, 1934
Joukovsky, N.I., Experimental Study of the Theory of Concentrated Solutions. XI. Thermodynamic Properties of Concentrated Solutions of Aliphatic Organic Compounds Containing Nitrogen., Bull. Soc. Chim. Belg., 1934, 43, 397. [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]

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]

Majer and Svoboda, 1985
Majer, V.; Svoboda, V., Enthalpies of Vaporization of Organic Compounds: A Critical Review and Data Compilation, Blackwell Scientific Publications, Oxford, 1985, 300. [all data]

Barone, Castronuovo, et al., 1985
Barone, G.; Castronuovo, G.; Della Gatta, G.; Elia, V.; Iannone, A., Enthalpies of vaporization of seven alkylamides, Fluid Phase Equilibria, 1985, 21, 1-2, 157-164, https://doi.org/10.1016/0378-3812(85)90066-4 . [all data]

Majer and Svoboda, 1985, 2
Majer, V.; Svoboda, V., Enthalpies of Vaporization of Organic Compounds: A Critical Review and Data Compilation, Blackwell Scientific Publications, Oxford, 1985, 300. [all data]

Bauder and Gunthard, 1958
Bauder, A.; Gunthard, Hs.H., Thermodynamische Eigenschaften von Formamid, Helv. Chim. Acta, 1958, 41, 670-673. [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]

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]

Daamen, van der Poel, et al., 1979
Daamen, H.; van der Poel, H.; Stufkens, D.J.; Oskam, A., The thermochemistry of M(CO)6-xLx (M = Cr, Mo, W; L = piperidine, pyridine, pyrazine, pyrazole, thiazole; x = 1, 2, 3), Thermochimica Acta, 1979, 34, 1, 69-83, https://doi.org/10.1016/0040-6031(79)80026-X . [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]

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 Wit, De Kruif, et al., 1983, 2
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, The Journal of Chemical Thermodynamics, 1983, 15, 9, 891-902, https://doi.org/10.1016/0021-9614(83)90095-2 . [all data]


Notes

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