N,N-Dimethylacetamide
- Formula: C4H9NO
- Molecular weight: 87.1204
- IUPAC Standard InChIKey: FXHOOIRPVKKKFG-UHFFFAOYSA-N
- CAS Registry Number: 127-19-5
- 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: Acetamide, N,N-dimethyl-; Acetdimethylamide; Dimethylacetamide; Dimethylamide acetate; DMA; CH3CON(CH3)2; Acetic acid dimethylamide; Acetyl dimethylamine; CBC 510337; DMAc; Hallucinogen; N,N-Dimethylethanamide; NSC 3138; SK 7176; U-5954; Dimethylamid kyseliny octove
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Phase change data
Go To: Top, IR Spectrum, Mass spectrum (electron ionization), 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:
BS - Robert L. Brown and Stephen E. Stein
AC - William E. Acree, Jr., James S. Chickos
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
Tboil | 438.2 | K | N/A | Weast and Grasselli, 1989 | BS |
Quantity | Value | Units | Method | Reference | Comment |
ΔvapH° | 49. ± 7. | kJ/mol | AVG | N/A | Average of 7 values; Individual data points |
Enthalpy of vaporization
ΔvapH (kJ/mol) | Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
45.1 | 386. | A | Stephenson and Malanowski, 1987 | Based on data from 371. to 423. K.; AC |
45.2 | 318. | A | Stephenson and Malanowski, 1987 | Based on data from 303. to 363. K. See also Gopal and Rizvi, 1968.; AC |
67.9 | 312. | N/A | Myasinkova, Schmelev, et al., 1974 | Based on data from 297. to 438. K. See also Boublik, Fried, et al., 1984.; 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 |
---|---|---|---|---|---|
303. to 363. | 6.09451 | 2725.96 | 28.209 | Gopal and Rizvi, 1968, 2 | Coefficents calculated by NIST from author's data. |
Enthalpy of fusion
ΔfusH (kJ/mol) | Temperature (K) | Reference | Comment |
---|---|---|---|
10.2 | 254.2 | Smirnova, Tsvetkova, et al., 2007 | AC |
8.2 | 253.2 | Lisicki and Jamróz, 2000 | AC |
10.42 | 251.4 | Ahlers, Lohmann, et al., 1999 | AC |
IR Spectrum
Go To: Top, Phase change data, Mass spectrum (electron ionization), References, Notes
Data compiled by: Coblentz Society, Inc.
- Not specified, most likely a prism, grating, or hybrid spectrometer.; DIGITIZED BY NIST FROM HARD COPY; 4 cm-1 resolution
- SOLUTION (10% IN CCl4 FOR 3600-1330 CM-1, 10% IN CS2 FOR 1330-600 CM-1); BECKMAN IR-7 (GRATING); DIGITIZED BY NIST FROM HARD COPY (FROM TWO SEGMENTS); 4 cm-1 resolution
Data compiled by: NIST Mass Spectrometry Data Center, William E. Wallace, director
Mass spectrum (electron ionization)
Go To: Top, Phase change data, IR Spectrum, 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: NIST Mass Spectrometry Data Center, William E. Wallace, director
Spectrum
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Additional Data
View image of digitized spectrum (can be printed in landscape orientation).
Due to licensing restrictions, this spectrum cannot be downloaded.
Owner | NIST Mass Spectrometry Data Center Collection (C) 2014 copyright by the U.S. Secretary of Commerce on behalf of the United States of America. All rights reserved. |
---|---|
Origin | NIST Mass Spectrometry Data Center, 1998. |
NIST MS number | 291288 |
References
Go To: Top, Phase change data, IR Spectrum, Mass spectrum (electron ionization), 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]
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]
Gopal and Rizvi, 1968
Gopal, R.; Rizvi, S.A.,
J. Indian Chem. Soc., 1968, 45, 1, 13. [all data]
Myasinkova, Schmelev, et al., 1974
Myasinkova, L.F.; Schmelev, V.A.; Vaisman, I.L.; Bushinskii, V.I.; Novokhatka, D.A.,
Zh. Prikl. Khim. (Leningrad), 1974, 47, 2604. [all data]
Boublik, Fried, et al., 1984
Boublik, T.; Fried, V.; Hala, E.,
The Vapour Pressures of Pure Substances: Selected Values of the Temperature Dependence of the Vapour Pressures of Some Pure Substances in the Normal and Low Pressure Region, 2nd ed., Elsevier, New York, 1984, 972. [all data]
Gopal and Rizvi, 1968, 2
Gopal, R.; Rizvi, S.A.,
Vapour Pressures of Some Mono- and Di-Alkyl Substituted Aliphatic Amides at Different Temperatures,
J. Indian Chem. Soc., 1968, 45, 1, 13-16. [all data]
Smirnova, Tsvetkova, et al., 2007
Smirnova, N.N.; Tsvetkova, L.Ya.; Bykova, T.A.; Marcus, Yizhak,
Thermodynamic properties of N,N-dimethylformamide and N,N-dimethylacetamide,
The Journal of Chemical Thermodynamics, 2007, 39, 11, 1508-1513, https://doi.org/10.1016/j.jct.2007.02.009
. [all data]
Lisicki and Jamróz, 2000
Lisicki, Zygmunt; Jamróz, Malgorzata E.,
(Solid + liquid) equilibria in (polynuclear aromatic+ tertiary amide) systems,
The Journal of Chemical Thermodynamics, 2000, 32, 10, 1335-1353, https://doi.org/10.1006/jcht.2000.0685
. [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, IR Spectrum, Mass spectrum (electron ionization), 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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