2-Butanone
- Formula: C4H8O
- Molecular weight: 72.1057
- IUPAC Standard InChIKey: ZWEHNKRNPOVVGH-UHFFFAOYSA-N
- CAS Registry Number: 78-93-3
- 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: Butan-2-one; Butanone; Ethyl methyl ketone; Ketone, methyl ethyl; Methyl ethyl ketone; MEK; C2H5COCH3; Acetone, methyl-; Aethylmethylketon; 3-Butanone; Butanone 2; Ethyl methyl cetone; Ethylmethylketon; Ketone, ethyl methyl; Meetco; Methyl acetone; Metiletilchetone; Metyloetyloketon; Rcra waste number U159; UN 1193; 2-Oxobutane; 2-Butanal; 2-butanone (MEK; methyl ethyl ketone); 2-butanone (MEK)
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Enthalpy of vaporization at standard conditions (nominally 298.15 K, 1 atm.)
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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
AC - William E. Acree, Jr., James S. Chickos
ΔvapH° (kJ/mol) | Method | Reference | Comment |
---|---|---|---|
34.92 | N/A | Majer and Svoboda, 1985 | |
34.73 | V | Uchytilova, Majer, et al., 1983 | ALS |
34.8 ± 0.1 | C | Uchytilova, Majer, et al., 1983 | AC |
35.51 ± 0.08 | C | Sunner, Svensson, et al., 1979 | ALS |
34.5 ± 0.1 | C | Sunner, Svensson, et al., 1979 | AC |
32.0 ± 0.01 | V | Mathews, 1926 | ALS |
References
Go To: Top, Enthalpy of vaporization at standard conditions (nominally 298.15 K, 1 atm.), Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
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]
Uchytilova, Majer, et al., 1983
Uchytilova, V.; Majer, V.; Svoboda, V.; Hynek, V.,
Enthalpies of vaporization and cohesive enrgies for seven aliphatic ketones,
J. Chem. Thermodyn., 1983, 15, 853-858. [all data]
Sunner, Svensson, et al., 1979
Sunner, S.; Svensson, Ch.; Zelepuga, A.S.,
Enthalpies of vaporization at 298.15 K for some 2-alkanones and methyl alkanoates,
J. Chem. Thermodyn., 1979, 11, 491-495. [all data]
Mathews, 1926
Mathews, J.H.,
The accurate measurement of heats of vaporization of liquids,
J. Am. Chem. Soc., 1926, 48, 562-576. [all data]
Notes
Go To: Top, Enthalpy of vaporization at standard conditions (nominally 298.15 K, 1 atm.), References
- Symbols used in this document:
ΔvapH° Enthalpy of vaporization at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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