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dl-lactic acid


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 by: Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein

Quantity Value Units Method Reference Comment
Deltacsolid-325.50kcal/molCcbEmery and Benedict, 1911Corresponding «DELTA»fsolid = -161.6 kcal/mol (simple calculation by NIST; no Washburn corrections)

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

MeCH(OH)CO2 anion + Hydrogen cation = dl-lactic acid

By formula: C3H5O3- + H+ = C3H6O3

Quantity Value Units Method Reference Comment
Deltar337.6 ± 2.2kcal/molG+TSCaldwell, Renneboog, et al., 1989gas phase; May have large entropy correction from cyclization; see HOCH2CO2-
Quantity Value Units Method Reference Comment
Deltar330.6 ± 2.0kcal/molIMRECaldwell, Renneboog, et al., 1989gas 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.

Emery and Benedict, 1911
Emery, A.G.; Benedict, F.G., The heat of combustion of compounds of physiological importance, Am. J. Physiol., 1911, 28, 301-307. [all data]

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

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