DL-Lactide
- Formula: C6H8O4
- Molecular weight: 144.1253
- IUPAC Standard InChI: InChI=1S/C6H8O4/c1-3-5(7)10-4(2)6(8)9-3/h3-4H,1-2H3
- IUPAC Standard InChIKey: JJTUDXZGHPGLLC-UHFFFAOYSA-N
- CAS Registry Number: 615-95-2
- Chemical structure:
This structure is also available as a 2d Mol file - Species with the same structure:
- Stereoisomers:
- Information on this page:
- Other data available:
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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 | -792.1 ± 1.7 | kJ/mol | Ccb | Kulagina, Lebedev, et al., 1980 | see Lebedev, Kulagina, et al., 1982; ALS |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔcH°solid | -2712.5 ± 1.7 | kJ/mol | Ccb | Kulagina, Lebedev, et al., 1980 | see Lebedev, Kulagina, et al., 1982; Corresponding ΔfHºsolid = -791.9 kJ/mol (simple calculation by NIST; no Washburn corrections); ALS |
| Quantity | Value | Units | Method | Reference | Comment |
| S°solid,1 bar | 213.1 | J/mol*K | N/A | Kulagina, Lebedev, et al., 1982 | DH |
| S°solid,1 bar | 213.1 | J/mol*K | N/A | Lebedev, Kulagina, et al., 1982, 2 | DH |
| S°solid,1 bar | 213.1 | J/mol*K | N/A | Kulagina, Lebedev, et al., 1980 | DH |
Constant pressure heat capacity of solid
| Cp,solid (J/mol*K) | Temperature (K) | Reference | Comment |
|---|---|---|---|
| 184.3 | 298.15 | Kulagina, Lebedev, et al., 1982 | T = 8 to 430 K.; DH |
| 184.3 | 298.15 | Lebedev, Kulagina, et al., 1982, 2 | T = 8 to 330 K.; DH |
| 184.3 | 298.15 | Kulagina, Lebedev, et al., 1980 | T = 5 to 430 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.
Kulagina, Lebedev, et al., 1980
Kulagina, T.G.; Lebedev, B.V.; Kiparisova, E.G.; Mukhina, N.N.,
Thermodynamics of dl-lactide in the 0-430 K region,
Fiz.-Khim. Osn. Sint. Pererab. Polim., 1980, 104-108. [all data]
Lebedev, Kulagina, et al., 1982
Lebedev, B.V.; Kulagina, T.G.; Kiparisova, E.G.,
Thermodynamics of dl-lactide, ethylene oxalate, and 2,5-dioxopiperazine in the range 0-330 K.,
Russ. J. Phys. Chem. (Engl. Transl.), 1982, 56, 1641-1643. [all data]
Kulagina, Lebedev, et al., 1982
Kulagina, T.G.; Lebedev, B.V.; Kiparisova, E.G.; Lyudvig, E.B.; Barskaya, I.G.,
Thermodynamics of dl-lactide and polylactide and of dl-lactide polymerizatrion at 0 to 430 K, Vysokomol. Soedin,
Ser., 1982, A 24(7), 1496-1501. [all data]
Lebedev, Kulagina, et al., 1982, 2
Lebedev, B.V.; Kulagina, T.G.; Kiparisova, Y.G.,
Thermodynamics of dl-lactide, ethylene oxalate, and 2,5-dioxopiperazine in the range 0-330 K,
Zhur. Fiz. Khim., 1982, 56, 2665-2669. [all data]
Notes
Go To: Top, Condensed phase thermochemistry data, References
- Symbols used in this document:
Cp,solid Constant pressure heat capacity of solid S°solid,1 bar Entropy of solid at standard conditions (1 bar) 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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