2-Heptanone
- Formula: C7H14O
- Molecular weight: 114.1855
- IUPAC Standard InChIKey: CATSNJVOTSVZJV-UHFFFAOYSA-N
- CAS Registry Number: 110-43-0
- 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: 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
- Permanent link for this species. Use this link for bookmarking this species for future reference.
- Information on this page:
- Other data available:
- Data at other public NIST sites:
- Options:
Data at NIST subscription sites:
NIST subscription sites provide data under the NIST Standard Reference Data Program, but require an annual fee to access. The purpose of the fee is to recover costs associated with the development of data collections included in such sites. Your institution may already be a subscriber. Follow the links above to find out more about the data in these sites and their terms of usage.
Phase change data
Go To: Top, Reaction thermochemistry 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 as indicated in comments:
BS - Robert L. Brown and Stephen E. Stein
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny director
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 | 423. ± 4. | K | AVG | N/A | Average of 33 values; Individual data points |
Quantity | Value | Units | Method | Reference | Comment |
Tc | 611.4 | K | N/A | Pulliam, Gude, et al., 1994 | Uncertainty assigned by TRC = 0.3 K; by the sealed ampule method; TRC |
Tc | 611.5 | K | N/A | Ambrose, Broderick, et al., 1974 | Uncertainty assigned by TRC = 0.4 K; TRC |
Quantity | Value | Units | Method | Reference | Comment |
Pc | 34.40 | bar | N/A | Ambrose, Broderick, et al., 1974 | Uncertainty assigned by TRC = 0.04 bar; TRC |
Quantity | Value | Units | Method | Reference | Comment |
ρc | 2.29 | mol/l | N/A | Pulliam, Gude, et al., 1994 | Uncertainty assigned by TRC = 0.03 mol/l; TRC |
Quantity | Value | Units | Method | Reference | Comment |
ΔvapH° | 47. ± 1. | kJ/mol | AVG | N/A | Average of 6 values; Individual data points |
Reduced pressure boiling point
Tboil (K) | Pressure (bar) | Reference | Comment |
---|---|---|---|
384.2 | 0.028 | Weast and Grasselli, 1989 | BS |
Enthalpy of vaporization
ΔvapH (kJ/mol) | Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
47.5 | 318. | A | Stephenson and Malanowski, 1987 | Based on data from 303. to 424. K.; AC |
39.1 | 464. | A | Stephenson and Malanowski, 1987 | Based on data from 449. to 480. K.; AC |
44.7 | 342. | N/A | Stephenson and Malanowski, 1987 | Based on data from 327. to 457. K. See also Ambrose, Ellender, et al., 1975.; AC |
39.5 | 422.2 | V | Mathews and Fehlandt, 1931 | ALS |
Antoine Equation Parameters
log10(P) = A − (B / (T + C))
P = vapor pressure (bar)
T = temperature (K)
View plot Requires a JavaScript / HTML 5 canvas capable browser.
Temperature (K) | A | B | C | Reference | Comment |
---|---|---|---|---|---|
292.4 to 423.4 | 7.24794 | 3331.738 | 36.682 | Stull, 1947 | Coefficents calculated by NIST from author's data. |
Enthalpy of fusion
ΔfusH (kJ/mol) | Temperature (K) | Reference | Comment |
---|---|---|---|
19.71 | 237.7 | Fiege, Joh, et al., 1996 | AC |
Reaction thermochemistry data
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: John E. Bartmess
Note: Please consider using the reaction search for this species. This page allows searching of all reactions involving this species. A general reaction search form is also available. Future versions of this site may rely on reaction search pages in place of the enumerated reaction displays seen below.
Individual Reactions
C7H13O- + =
By formula: C7H13O- + H+ = C7H14O
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 1528. ± 8.8 | kJ/mol | TDEq | Burkell, Fridgen, et al., 2003 | gas phase |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 1498. ± 8.8 | kJ/mol | TDEq | Burkell, Fridgen, et al., 2003 | gas phase |
IR Spectrum
Go To: Top, Phase change data, Reaction thermochemistry data, References, Notes
Data compiled by: Coblentz Society, Inc.
Data compiled by: NIST Mass Spectrometry Data Center, William E. Wallace, director
References
Go To: Top, Phase change data, Reaction thermochemistry data, IR Spectrum, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Pulliam, Gude, et al., 1994
Pulliam, M.K.; Gude, M.T.; Teja, A.S.,
The Critical Properties of Twelve Isomeric n-Alkanones with Six to Nine Carbon Atoms,
Experimental Results for DIPPR 1990-91 Projects on Phase Equilibria and Pure Component Properties, 1994, 1994, DIPPR Data Ser. No. 2, p. 184-87. [all data]
Ambrose, Broderick, et al., 1974
Ambrose, D.; Broderick, B.E.; Townsend, R.,
The Critical Temperatures and Pressures of Thirty Organic Compounds,
J. Appl. Chem. Biotechnol., 1974, 24, 359. [all data]
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]
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]
Mathews and Fehlandt, 1931
Mathews, J.H.; Fehlandt, P.R.,
The heats of vaporization of some organic compounds,
J. Am. Chem. Soc., 1931, 53, 3212-32. [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]
Fiege, Joh, et al., 1996
Fiege, C.; Joh, R.; Petri, M.; Gmehling, J.,
Solid-Liquid Equilibria for Different Heptanones with Benzene, Cyclohexane, and Ethanol,
J. Chem. Eng. Data, 1996, 41, 6, 1431-1433, https://doi.org/10.1021/je960140h
. [all data]
Burkell, Fridgen, et al., 2003
Burkell, J.L.; Fridgen, T.D.; McMahon, T.B.,
Gas-phase acidities and sites of deprotonation of 2-ketones and structures of the corresponding enolates,
Int. J. Mass Spectrom., 2003, 227, 3, 497-508, https://doi.org/10.1016/S1387-3806(03)00102-7
. [all data]
Notes
Go To: Top, Phase change data, Reaction thermochemistry data, IR Spectrum, References
- Symbols used in this document:
Pc Critical pressure Tboil Boiling point Tc Critical temperature ΔfusH Enthalpy of fusion ΔrG° Free energy of reaction at standard conditions ΔrH° Enthalpy of reaction at standard conditions ΔvapH Enthalpy of vaporization ΔvapH° Enthalpy of vaporization at standard conditions ρc Critical density - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
- The National Institute of Standards and Technology (NIST) uses its best efforts to deliver a high quality copy of the Database and to verify that the data contained therein have been selected on the basis of sound scientific judgment. However, NIST makes no warranties to that effect, and NIST shall not be liable for any damage that may result from errors or omissions in the Database.
- Customer support for NIST Standard Reference Data products.