Pentanoic acid, 4-methyl-
- Formula: C6H12O2
- Molecular weight: 116.1583
- IUPAC Standard InChIKey: FGKJLKRYENPLQH-UHFFFAOYSA-N
- CAS Registry Number: 646-07-1
- 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: Valeric acid, 4-methyl-; Isobutylacetic acid; Isocaproic acid; Isohexanoic acid; 4-Methylpentanoic acid; 4-Methylvaleric acid; 4,4-Dimethylbutanoic acid; 4-Methyl-n-valeric acid; Isohexoic acid; NSC 4126
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Phase change data
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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:
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
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
Tboil | 472. ± 3. | K | AVG | N/A | Average of 14 out of 15 values; Individual data points |
Enthalpy of vaporization
ΔvapH (kJ/mol) | Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
91.7 | 354. | A | Stephenson and Malanowski, 1987 | Based on data from 339. to 481. K.; AC |
Antoine Equation Parameters
log10(P) = A − (B / (T + C))
P = vapor pressure (bar)
T = temperature (K)
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Temperature (K) | A | B | C | Reference | Comment |
---|---|---|---|---|---|
369.1 to 406.3 | 3.09143 | 926.574 | -181.221 | Kahlbaum, 1894 | Coefficents calculated by NIST from author's data. |
References
Go To: Top, Phase change data, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
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]
Kahlbaum, 1894
Kahlbaum, G.W.A.,
Studien uber Dampfspannkraftsmessungen,
Z. Phys. Chem. (Leipzig), 1894, 13, 14-55. [all data]
Notes
Go To: Top, Phase change data, References
- Symbols used in this document:
Tboil Boiling point ΔvapH Enthalpy of vaporization - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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