DL-Valine
- Formula: C5H11NO2
- Molecular weight: 117.1463
- IUPAC Standard InChI: InChI=1S/C5H11NO2/c1-3(2)4(6)5(7)8/h3-4H,6H2,1-2H3,(H,7,8)
- IUPAC Standard InChIKey: KZSNJWFQEVHDMF-UHFFFAOYSA-N
- CAS Registry Number: 516-06-3
- 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. - Stereoisomers:
- Other names: Valine, DL-; DL-α-Aminoisovaleric acid; DL-Val; Valine; 2-Amino-3-methylbutanoic acid, DL-; NSC 9755
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Condensed phase thermochemistry 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:
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
DH - Eugene S. Domalski and Elizabeth D. Hearing
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔfH°solid | -617.0 ± 1.0 | kJ/mol | Ccb | Ribeiro da Silva, Ribeiro da Silva, et al., 1992 | ALS |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔcH°solid | -2910.7 ± 1.9 | kJ/mol | Ccb | Vasil'ev, Borodin, et al., 1991 | ALS |
| ΔcH°solid | -2933.9 ± 0.4 | kJ/mol | Ccb | Wrede, 1911 | ALS |
Constant pressure heat capacity of solid
| Cp,solid (J/mol*K) | Temperature (K) | Reference | Comment |
|---|---|---|---|
| 165. | 298. | Badelin, Kulikov, et al., 1990 | T = 298, 313, 333, 348 K.; DH |
| 164.5 | 298. | Kulikov, Kozlov, et al., 1989 | T = 298 to 348 K.; DH |
References
Go To: Top, Condensed phase thermochemistry data, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Ribeiro da Silva, Ribeiro da Silva, et al., 1992
Ribeiro da Silva, M.A.V.; Ribeiro da Silva, M.D.M.C.; Bernardo, M.M.C.; Santos, L.M.N.B.F.,
Thermochemistry of some metallic amino acid complexes. Part 1. Copper(II) complexes,
Thermochim. Acta, 1992, 205, 99-113. [all data]
Vasil'ev, Borodin, et al., 1991
Vasil'ev, V.P.; Borodin, V.A.; Kopnyshev, S.B.,
Standard enthalpies of formation of some amino acids,
Russ. J. Phys. Chem. (Engl. Transl.), 1991, 65, 1029. [all data]
Wrede, 1911
Wrede, F.,
Uber die Bestimmung von Berbrennungswarmen mittels der kalorimetrischen Bombe unter Benutzung des Platinwiderstandsthermometers,
Z. Phys. Chem. (Leipzig), 1911, 81-94. [all data]
Badelin, Kulikov, et al., 1990
Badelin, V.G.; Kulikov, O.V.; Batagin, V.S.; Udzig, E.; Zielenkiewicz, A.; Zielenkiewicz, W.; Krestov, G.A.,
Physico-chemical properties of peptides and their solutions,
Thermochim. Acta, 1990, 169, 81-93. [all data]
Kulikov, Kozlov, et al., 1989
Kulikov, O.V.; Kozlov, V.A.; Malenkina, L.I.; Badelin, V.G.,
Heat capacities of amino acids and peptides and excess characteristics ot their aqueous solutions, Sbornik Nauch. Trud., Termodin. Rast. neelect., Ivanovo,
Inst. nevod. rast., 1989, Akad. [all data]
Notes
Go To: Top, Condensed phase thermochemistry data, References
- Symbols used in this document:
Cp,solid Constant pressure heat capacity of solid ΔcH°solid Enthalpy of combustion of solid at standard conditions ΔfH°solid Enthalpy of formation of solid at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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