β'-Dithiodilactic acid
- Formula: C6H10O4S2
- Molecular weight: 210.271
- IUPAC Standard InChI: InChI=1S/C6H10O4S2/c1-3(5(7)8)11-12-4(2)6(9)10/h3-4H,1-2H3,(H,7,8)(H,9,10)
- IUPAC Standard InChIKey: UTDRPUGFHHVEDG-UHFFFAOYSA-N
- CAS Registry Number: 4775-93-3
- 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. - Other names: α,α'-Dithiodipropionic acid
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Condensed phase thermochemistry data
Go To: Top, References, Notes
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 |
|---|---|---|---|---|---|
| ΔcH°solid | -4028.4 ± 3.8 | kJ/mol | Ccb | Huffman and Ellis, 1935 | Reanalyzed by Cox and Pilcher, 1970, Original value = -3952.8 ± 3.8 kJ/mol; ALS |
| Quantity | Value | Units | Method | Reference | Comment |
| S°solid,1 bar | 274.1 | J/mol*K | N/A | Huffman and Ellis, 1935, 2 | Extrapolation below 90 K, 84.43 J/mol*K.; DH |
Constant pressure heat capacity of solid
| Cp,solid (J/mol*K) | Temperature (K) | Reference | Comment |
|---|---|---|---|
| 239.3 | 296.8 | Huffman and Ellis, 1935, 2 | T = 85 to 305 K. Value is unsmoothed experimental datum.; 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.
Huffman and Ellis, 1935
Huffman, H.M.; Ellis, E.L.,
Thermal Data. II. The heats of combustion of l-cysteine, of l-cystine, β-thiolactic acid and β,β'-dithiodilactic acid,
J. Am. Chem. Soc., 1935, 57, 41-46. [all data]
Cox and Pilcher, 1970
Cox, J.D.; Pilcher, G.,
Thermochemistry of Organic and Organometallic Compounds, Academic Press, New York, 1970, 1-636. [all data]
Huffman and Ellis, 1935, 2
Huffman, H.M.; Ellis, E.L.,
Thermal data. III. The heat capacities, entropies and free energies of four organic compounds containing sulfur,
J. Am. Chem. Soc., 1935, 57, 46-48. [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 - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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