Hexanoic acid, ethyl ester
- Formula: C8H16O2
- Molecular weight: 144.2114
- IUPAC Standard InChIKey: SHZIWNPUGXLXDT-UHFFFAOYSA-N
- CAS Registry Number: 123-66-0
- 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. - Isotopologues:
- Other names: Ethyl caproate; Ethyl hexanoate; Caproic acid ethyl ester; n-Caproic acid ethyl ester; Acetic acid, butyl-, ethyl ester; Ethyl butyl acetate; Ethyl hexoate; Ethyl ester of hexanoic acid; Ethyl n-hexanoate; NSC 8882; 8068-81-3
- Permanent link for this species. Use this link for bookmarking this species for future reference.
- Information on this page:
- Other data available:
- 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.
Gas phase thermochemistry data
Go To: Top, Condensed phase thermochemistry data, Phase change data, 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: Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔfH°gas | -528. ± 2. | kJ/mol | Cm | Wiberg and Waldron, 1991 | Heat of hydrolysis |
Condensed phase thermochemistry data
Go To: Top, Gas phase thermochemistry data, Phase change data, 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: Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔfH°liquid | -579.1 ± 1.1 | kJ/mol | Cm | Wiberg and Waldron, 1991 | Heat of hydrolysis |
Phase change data
Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, 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
DRB - Donald R. Burgess, Jr.
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
Tboil | 441.2 | K | N/A | Weast and Grasselli, 1989 | BS |
Tboil | 440.06 | K | N/A | Serijan and Wise, 1951 | Uncertainty assigned by TRC = 0.3 K; TRC |
Tboil | 439.8 | K | N/A | Gill and Dexter, 1934 | Uncertainty assigned by TRC = 1. K; TRC |
Tboil | 439.8 | K | N/A | Gartenmeister, 1886 | Uncertainty assigned by TRC = 1.5 K; TRC |
Tboil | 435. | K | N/A | Fehling, 1845 | Uncertainty assigned by TRC = 5. K; TRC |
Quantity | Value | Units | Method | Reference | Comment |
Tfus | 205.51 | K | N/A | Serijan and Wise, 1951 | Uncertainty assigned by TRC = 0.3 K; TRC |
Quantity | Value | Units | Method | Reference | Comment |
Tc | 615.2 | K | N/A | Young, 1994 | Uncertainty assigned by TRC = 0.6 K; TRC |
Quantity | Value | Units | Method | Reference | Comment |
ΔvapH° | 50.6 ± 0.4 | kJ/mol | GS | Verevkin and Heintz, 1999 | Based on data from 279. to 309. K.; AC |
ΔvapH° | 52. ± 1. | kJ/mol | V | Wiberg and Waldron, 1991 | Heat of hydrolysis; ALS |
ΔvapH° | 51.1 | kJ/mol | N/A | Wiberg and Waldron, 1991 | DRB |
ΔvapH° | 51.5 ± 1.3 | kJ/mol | EB | Wiberg and Waldron, 1991 | Based on data from 345. to 379. K.; AC |
ΔvapH° | 51.72 ± 0.10 | kJ/mol | C | Nilsson and Wadso, 1986 | ALS |
Enthalpy of vaporization
ΔvapH (kJ/mol) | Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
50.8 ± 0.4 | 294. | GS | Verevkin and Heintz, 1999 | Based on data from 279. to 309. K.; AC |
47.4 ± 0.3 | 359. | EB | Wiberg and Waldron, 1991 | Based on data from 345. to 374. K.; AC |
51.8 | 311. | A | Stephenson and Malanowski, 1987 | Based on data from 396. to 449. K.; AC |
48.6 | 315. | A | Stephenson and Malanowski, 1987 | Based on data from 300. to 376. K.; AC |
References
Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Wiberg and Waldron, 1991
Wiberg, K.B.; Waldron, R.F.,
Lactones. 2. Enthalpies of hydrolysis, reduction, and formation of the C4-C13 monocyclic lactones. strain energies and conformations,
J. Am. Chem. Soc., 1991, 113, 7697-7705. [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]
Serijan and Wise, 1951
Serijan, K.T.; Wise, P.H.,
Dicyclic hydrocarboms. IV. Synthesis and Physical properties of alpha,alpha - and alpha,omega-diphenyl- and dicyclohexyl- pentanes and hexanes,
J. Am. Chem. Soc., 1951, 73, 5191. [all data]
Gill and Dexter, 1934
Gill, A.H.; Dexter, F.P.,
Ind. Eng. Chem., 1934, 26, 881. [all data]
Gartenmeister, 1886
Gartenmeister, R.,
Investigation of the physical characterstics of liquid compounds: vi boiling point and specific volume of normal fatty acid esters,
Justus Liebigs Ann. Chem., 1886, 233, 249-315. [all data]
Fehling, 1845
Fehling, H.,
Acids of Coconut Oil,
Justus Liebigs Ann. CHem., 1845, 53, 399-411. [all data]
Young, 1994
Young, C.L.,
Personal Commun. 1994 1994, 1994. [all data]
Verevkin and Heintz, 1999
Verevkin, Sergey P.; Heintz, Andreas,
Determination of Vaporization Enthalpies of the Branched Esters from Correlation Gas Chromatography and Transpiration Methods,
J. Chem. Eng. Data, 1999, 44, 6, 1240-1244, https://doi.org/10.1021/je990122a
. [all data]
Nilsson and Wadso, 1986
Nilsson, S.-O.; Wadso, I.,
Thermodynamic properties of some mono-, di-, and tri esters. Enthalpies of solution in water at 288.15 to 318.15 K and enthalpies of vaporization and heat capacities at 298.15 K,
J. Chem. Thermodyn., 1986, 18, 673-681. [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]
Notes
Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, References
- Symbols used in this document:
Tboil Boiling point Tc Critical temperature Tfus Fusion (melting) point ΔfH°gas Enthalpy of formation of gas at standard conditions ΔfH°liquid Enthalpy of formation of liquid at standard conditions ΔvapH Enthalpy of vaporization ΔvapH° Enthalpy of vaporization at standard conditions - 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.