- Formula: C6H8O4
- Molecular weight: 144.1253
- IUPAC Standard InChI:
- Download the identifier in a file.
- IUPAC Standard InChIKey: JJTUDXZGHPGLLC-UHFFFAOYSA-N
- CAS Registry Number: 95-96-5
- Chemical structure:
This structure is also available as a 2d Mol file or as a computed 3d SD file
- Species with the same structure:
- Other names: p-Dioxane-2,5-dione, 3,6-dimethyl-; Lactide; Propanoic acid, 2-hydroxy-, bimol. cyclic ester; 3,6-Dimethyl-2,5-dioxo-1,4-dioxane; 3,6-Dimethyl-1,4-dioxane-2,5-dione; dl-Lactide; dilactide
- Information on this page:
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Condensed phase thermochemistry data
Go To: Top, Phase change data, Mass spectrum (electron ionization), References, Notes
Data compiled by: Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
|fH°solid||-792.1 ± 1.7||kJ/mol||Ccb||Kulagina, Lebedev, et al., 1982|
|cH°solid||-2712.5 ± 1.7||kJ/mol||Ccb||Kulagina, Lebedev, et al., 1982||Corresponding «DELTA»fHºsolid = -791.9 kJ/mol (simple calculation by NIST; no Washburn corrections)|
Phase change data
Go To: Top, Condensed phase thermochemistry data, Mass spectrum (electron ionization), References, Notes
Data compiled as indicated in comments:
BS - Robert L. Brown and Stephen E. Stein
AC - William E. Acree, Jr., James S. Chickos
Reduced pressure boiling point
|Tboil (K)||Pressure (bar)||Reference||Comment|
|415.2||0.01||Aldrich Chemical Company Inc., 1990||BS|
Enthalpy of fusion
|fusH (kJ/mol)||Temperature (K)||Reference||Comment|
|24.7||397.5||Domalski and Hearing, 1996||AC|
Mass spectrum (electron ionization)
Go To: Top, Condensed phase thermochemistry data, Phase change data, References, Notes
Data compiled by: NIST Mass Spectrometry Data Center, William E. Wallace, director
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|Owner||NIST Mass Spectrometry Data Center|
Collection (C) 2014 copyright by the U.S. Secretary of Commerce
on behalf of the United States of America. All rights reserved.
|NIST MS number||4158|
Go To: Top, Condensed phase thermochemistry data, Phase change data, Mass spectrum (electron ionization), Notes
Kulagina, Lebedev, et al., 1982
Kulagina, T.G.; Lebedev, B.V.; Kiparisova, Ye.G.; Lyudvig, Ye.B.; Barskaya, I.G., Thermodynamics of dl-lactide, polylactide and polymerization of dl-lactide in the range of 0-430K, Polym. Sci. USSR, 1982, 24, 1702-1708. [all data]
Aldrich Chemical Company Inc., 1990
Aldrich Chemical Company Inc., Catalog Handbook of Fine Chemicals, Aldrich Chemical Company, Inc., Milwaukee WI, 1990, 1. [all data]
Domalski and Hearing, 1996
Domalski, Eugene S.; Hearing, Elizabeth D., Heat Capacities and Entropies of Organic Compounds in the Condensed Phase. Volume III, J. Phys. Chem. Ref. Data, 1996, 25, 1, 1, https://doi.org/10.1063/1.555985 . [all data]
Go To: Top, Condensed phase thermochemistry data, Phase change data, Mass spectrum (electron ionization), References
- Symbols used in this document:
Tboil Boiling point cH°solid Enthalpy of combustion of solid at standard conditions fH°solid Enthalpy of formation of solid at standard conditions fusH Enthalpy of fusion
- Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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