2-Heptanone

Formula: C₇H₁₄O
Molecular weight: 114.1855
IUPAC Standard InChI: InChI=1S/C7H14O/c1-3-4-5-6-7(2)8/h3-6H2,1-2H3
IUPAC Standard InChIKey: CATSNJVOTSVZJV-UHFFFAOYSA-N
CAS Registry Number: 110-43-0
Chemical structure:
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Other names: n-Amyl methyl ketone; n-Pentyl methyl ketone; Amyl methyl ketone; Butylacetone; Heptan-2-one; Methyl amyl ketone; Methyl n-amyl ketone; Methyl n-pentyl ketone; Methyl pentyl ketone; Pentyl methyl ketone; n-C5H11COCH3; 2-Ketoheptane; Amyl-methyl-cetone; Ketone, methyl pentyl; Methyl-amyl-cetone; UN 1110; Ketone C-7; 2-Heptanal; Heptanone-2; NSC 7313
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Enthalpy of vaporization at standard conditions (nominally 298.15 K, 1 atm.)

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Data compiled as indicated in comments:
AC - William E. Acree, Jr., James S. Chickos
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein

Δ_vapH° (kcal/mol)	Method	Reference	Comment
11.0	CGC	Chickos, Hosseini, et al., 1995	Based on data from 343. to 383. K.; AC
11.6	CGC	Chickos, Hosseini, et al., 1995	Based on data from 343. to 383. K.; AC
11.3 ± 0.07	GCC	Saluja, Peacock, et al., 1979	AC
11.29 ± 0.01	C	Sunner, Svensson, et al., 1979	ALS
11.3 ± 0.02	C	Sunner, Svensson, et al., 1979	AC
11.5	N/A	Ambrose, Ellender, et al., 1975	AC

References

Go To: Top, Enthalpy of vaporization at standard conditions (nominally 298.15 K, 1 atm.), Notes

Chickos, Hosseini, et al., 1995
Chickos, James S.; Hosseini, Sarah; Hesse, Donald G., Determination of vaporization enthalpies of simple organic molecules by correlations of changes in gas chromatographic net retention times, Thermochimica Acta, 1995, 249, 41-62, https://doi.org/10.1016/0040-6031(95)90670-3 . [all data]

Saluja, Peacock, et al., 1979
Saluja, P.P.S.; Peacock, L.A.; Fuchs, R., Enthalpies of interaction of aliphatic ketones with polar and nonpolar solvents, J. Am. Chem. Soc., 1979, 101, 1958-1962. [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]

Ambrose, Ellender, et al., 1975
Ambrose, D.; Ellender, J.H.; Lees, E.B.; Sprake, C.H.S.; Townsend, R., Thermodynamic properties of organic oxygen compounds XXXVIII. Vapour pressures of some aliphatic ketones, The Journal of Chemical Thermodynamics, 1975, 7, 5, 453-472, https://doi.org/10.1016/0021-9614(75)90275-X . [all data]

Notes

Go To: Top, Enthalpy of vaporization at standard conditions (nominally 298.15 K, 1 atm.), References

Symbols used in this document:

Δ_vapH° Enthalpy of vaporization at standard conditions
Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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