Pentanoic acid 1-methylpropyl ester
- Formula: C9H18O2
- Molecular weight: 158.2380
- IUPAC Standard InChI: InChI=1S/C9H18O2/c1-4-6-7-9(10)11-8(3)5-2/h8H,4-7H2,1-3H3
- IUPAC Standard InChIKey: WKIZFWVLAYCRDF-UHFFFAOYSA-N
- CAS Registry Number: 23361-74-2
- 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: sec-Butyl pentanoate; Pentanoic acid, 2-butyl ester
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Condensed phase thermochemistry data
Go To: Top, 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 | -624. ± 2. | kJ/mol | Ccb | Schjanberg, 1937 | Heat of formation derived by Cox and Pilcher, 1970 |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔcH°liquid | -5489.8 ± 1.7 | kJ/mol | Ccb | Schjanberg, 1937 | Reanalyzed by Cox and Pilcher, 1970, Original value = -5482. ± 4. kJ/mol; At 293 K; Corresponding ΔfHºliquid = -624.25 kJ/mol (simple calculation by NIST; no Washburn corrections) |
Phase change data
Go To: Top, 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:
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
DRB - Donald R. Burgess, Jr.
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔvapH° | 51. ± 1. | kJ/mol | E | Schjanberg, 1937 | Heat of formation derived by Cox and Pilcher, 1970; ALS |
| ΔvapH° | 51.0 | kJ/mol | N/A | Schjanberg, 1937 | DRB |
Enthalpy of vaporization
| ΔvapH (kJ/mol) | Temperature (K) | Method | Reference | Comment |
|---|---|---|---|---|
| 41. | 293. | V | Schjanberg, 1937 | At 293 K; ALS |
References
Go To: Top, 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.
Schjanberg, 1937
Schjanberg, E.,
Die verbrennungswarmen und die refraktionsdaten einiger pentensaureeste,
Z. Phys. Chem., 1937, 178, 274-281. [all data]
Cox and Pilcher, 1970
Cox, J.D.; Pilcher, G.,
Thermochemistry of Organic and Organometallic Compounds, Academic Press, New York, 1970, 1-636. [all data]
Notes
Go To: Top, Condensed phase thermochemistry data, Phase change data, References
- Symbols used in this document:
ΔcH°liquid Enthalpy of combustion of liquid 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
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