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L-Cysteine

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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 - H.Y. Afeefy, J.F. Liebman, and S.E. Stein
DH - E.S. Domalski and E.D. Hearing

Quantity Value Units Method Reference Comment
Deltafsolid-534.08 ± 0.62kJ/molCcrSabbah and Minadakis, 1981ALS
Deltafsolid-567.4kJ/molCcbBecker and Roth, 1934hf_H2SO4.10,000H2O=-900.752 kJ/mol; ALS
Quantity Value Units Method Reference Comment
Deltacsolid-2248.84 ± 0.55kJ/molCcrSabbah and Minadakis, 1981ALS
Deltacsolid-2267.7 ± 2.1kJ/molCcrSunner, 1946Reanalyzed by Cox and Pilcher, 1970, Original value = -2268.9 kJ/mol; ALS
Deltacsolid-2248.9 ± 2.1kJ/molCcbHuffman and Ellis, 1935Reanalyzed by Cox and Pilcher, 1970, Original value = -2223.3 ± 2.1 kJ/mol; ALS
Deltacsolid-2229. ± 3.kJ/molCcbBecker and Roth, 1934hf_H2SO4.10,000H2O=-900.752 kJ/mol; ALS
Quantity Value Units Method Reference Comment
solid,1 bar169.9J/mol*KN/AHuffman and Ellis, 1935, 2Extrapolation below 90 K, 48.99 J/mol*K.; DH

Constant pressure heat capacity of solid

Cp,solid (J/mol*K) Temperature (K) Reference Comment
162.3297.6Huffman and Ellis, 1935, 2T = 85 to 298 K. Value is unsmoothed experimental datum.; DH

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.

Sabbah and Minadakis, 1981
Sabbah, R.; Minadakis, C., Thermodynamique de substances soufrees. II. Etude thermochimique de la l-cysteine et de la l-methionine, Thermochim. Acta, 1981, 43, 269-277. [all data]

Becker and Roth, 1934
Becker, G.; Roth, W.A., Zur bestimmung der verbrennungswarme von organischen schwefelverbindunge, Z. Phys. Chem., 1934, 169, 287-296. [all data]

Sunner, 1946
Sunner, S., Determination of combustion heats of organo-sulphur compounds, Svensk. Kim. Tidr., 1946, 58, 71-81. [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
Huffman, H.M.; Ellis, E.L., Thermal Data. II. The heats of combustion of l-cysteine, of l-cystine, «beta»-thiolactic acid and «beta»,«beta»'-dithiodilactic acid, J. Am. Chem. Soc., 1935, 57, 41-46. [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

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