Formamide, N-methyl-
- Formula: C2H5NO
- Molecular weight: 59.0672
- IUPAC Standard InChIKey: ATHHXGZTWNVVOU-UHFFFAOYSA-N
- CAS Registry Number: 123-39-7
- 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: Methylformamide; Monomethylformamide; N-Methylformamide; HCONHCH3; EK 7011; NSC 3051; X 188; N-Monomethylformamide
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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:
BS - Robert L. Brown and Stephen E. Stein
AC - William E. Acree, Jr., James S. Chickos
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
Tboil | 455.7 | K | N/A | Weast and Grasselli, 1989 | BS |
Quantity | Value | Units | Method | Reference | Comment |
ΔvapH° | 13.43 | kcal/mol | N/A | Majer and Svoboda, 1985 | |
ΔvapH° | 13.0 ± 0.31 | kcal/mol | N/A | Ushakov, Sedov, et al., 1996 | Based on data from 340. to 440. K.; AC |
ΔvapH° | 13.4 | kcal/mol | A | Barone, Castronuovo, et al., 1985 | See also Varushchenko, 1986.; AC |
Enthalpy of vaporization
ΔvapH (kcal/mol) | Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
12.9 | 355. | N/A | Ushakov, Sedov, et al., 1996 | Based on data from 340. to 440. K.; AC |
13.0 | 325. | A | Stephenson and Malanowski, 1987 | Based on data from 310. to 391. K.; AC |
12.8 | 384. | A | Stephenson and Malanowski, 1987 | Based on data from 369. to 472. K. See also Heinrich, Ilavsky, et al., 1961 and Dykyj, 1970.; AC |
Antoine Equation Parameters
log10(P) = A − (B / (T + C))
P = vapor pressure (atm)
T = temperature (K)
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Temperature (K) | A | B | C | Reference | Comment |
---|---|---|---|---|---|
369.6 to 472.4 | 4.99225 | 2134.031 | -45.071 | Heinrich, Ilavsky, et al., 1961, 2 | Coefficents calculated by NIST from author's data. |
Enthalpy of fusion
ΔfusH (kcal/mol) | Temperature (K) | Reference | Comment |
---|---|---|---|
2.495 | 270.6 | Ahlers, Lohmann, et al., 1999 | AC |
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.
Weast and Grasselli, 1989
CRC Handbook of Data on Organic Compounds, 2nd Editon, Weast,R.C and Grasselli, J.G., ed(s)., CRC Press, Inc., Boca Raton, FL, 1989, 1. [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]
Ushakov, Sedov, et al., 1996
Ushakov, V.S.; Sedov, S.M.; Knyazev, B.A.; Kuchkaev, B.I.,
Thermodynamic properties of N-methylformamide,
Zh. Fiz. Khim., 1996, 70, 9, 1573. [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]
Varushchenko, 1986
Varushchenko, R.M.,
Zh. Fiz. Khim., 1986, 60, 291. [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]
Heinrich, Ilavsky, et al., 1961
Heinrich, J.; Ilavsky, J.; Surovy, J.,
Chem. Zvesti, 1961, 15, 414. [all data]
Dykyj, 1970
Dykyj, J.,
Petrochemica, 1970, 10, 2, 51. [all data]
Heinrich, Ilavsky, et al., 1961, 2
Heinrich, J.; Ilavsky, J.; Surovy, J.,
Dependence of the Vapor Pressure of N-Methylformamide from the Temperature Equilibrium Liquid-Vapor for the System N-Methyl-Formamide-Water,
Chem. Zvesti, 1961, 15, 6, 414-418. [all data]
Ahlers, Lohmann, et al., 1999
Ahlers, Jens; Lohmann, Jürgen; Gmehling, Jürgen,
Binary Solid-Liquid Equilibria of Organic Systems Containing Different Amides and Sulfolane,
J. Chem. Eng. Data, 1999, 44, 4, 727-730, https://doi.org/10.1021/je9802975
. [all data]
Notes
Go To: Top, Phase change data, References
- Symbols used in this document:
Tboil Boiling point ΔfusH Enthalpy of fusion ΔvapH Enthalpy of vaporization ΔvapH° Enthalpy of vaporization at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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