dl-lactic acid
- Formula: C3H6O3
- Molecular weight: 90.0779
- IUPAC Standard InChI: InChI=1S/C3H6O3/c1-2(4)3(5)6/h2,4H,1H3,(H,5,6)
- IUPAC Standard InChIKey: JVTAAEKCZFNVCJ-UHFFFAOYSA-N
- CAS Registry Number: 598-82-3
- Chemical structure:
This structure is also available as a 2d Mol file or as a computed 3d SD file
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- Stereoisomers:
- Other names: Lactic acid
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Reaction 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 by: John E. Bartmess
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Individual Reactions
+
=
By formula: C3H5O3- + H+ = C3H6O3
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 1413. ± 9.2 | kJ/mol | G+TS | Caldwell, Renneboog, et al., 1989 | gas phase; May have large entropy correction from cyclization; see HOCH2CO2- |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔrG° | 1383. ± 8.4 | kJ/mol | IMRE | Caldwell, Renneboog, et al., 1989 | gas phase; May have large entropy correction from cyclization; see HOCH2CO2- |
References
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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Caldwell, Renneboog, et al., 1989
Caldwell, G.; Renneboog, R.; Kebarle, P.,
Gas Phase Acidities of Aliphatic Carboxylic Acids, Based on Measurements of Proton Transfer Equilibria,
Can. J. Chem., 1989, 67, 4, 661, https://doi.org/10.1139/v89-092
. [all data]
Notes
Go To: Top, Reaction thermochemistry data, References
- Symbols used in this document:
ΔrG° Free energy of reaction at standard conditions ΔrH° Enthalpy of reaction at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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