1,2-Ethanedithiol

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Gas 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
Δfgas-9.3 ± 1.1kJ/molCcbMansson and Sunner, 1962hf298_H2SO4.115=-212.24 kcal/mol

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
Δfliquid-54.0 ± 1.1kJ/molCcbMansson and Sunner, 1962hf298_H2SO4.115=-212.24 kcal/mol
Quantity Value Units Method Reference Comment
Δcliquid-2794.9 ± 0.92kJ/molCcbMansson and Sunner, 1962hf298_H2SO4.115=-212.24 kcal/mol

Phase change 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:
BS - Robert L. Brown and Stephen E. Stein
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny director
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
DRB - Donald R. Burgess, Jr.
AC - William E. Acree, Jr., James S. Chickos

Quantity Value Units Method Reference Comment
Tboil419.2KN/AWeast and Grasselli, 1989BS
Tboil419.2KN/AMajer and Svoboda, 1985 
Tboil418.KN/AZinner, 1953Uncertainty assigned by TRC = 4. K; TRC
Quantity Value Units Method Reference Comment
Δvap44.69kJ/molN/AMajer and Svoboda, 1985 
Δvap44.7 ± 0.1kJ/molVMansson and Sunner, 1962hf298_H2SO4.115=-212.24 kcal/mol; ALS
Δvap44.7kJ/molN/AMansson and Sunner, 1962DRB
Δvap44.7kJ/molN/AMansson and Sunner, 1962AC

Enthalpy of vaporization

ΔvapH (kJ/mol) Temperature (K) Reference
37.93419.2Majer and Svoboda, 1985

In addition to the Thermodynamics Research Center (TRC) data available from this site, much more physical and chemical property data is available from the following TRC products:


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.

Mansson and Sunner, 1962
Mansson, M.; Sunner, S., Heats of combustion and formation of the n-Alkane-αω-dithiols from ethane through pentane, Acta Chem. Scand., 1962, 16, 1863-1869. [all data]

Weast and Grasselli, 1989
CRC Handbook of Data on Organic Compounds, 2nd Editon, Weast,R.C and Grasselli, J.G., ed(s)., CRC Press, Inc., Boca Raton, FL, 1989, 1. [all data]

Majer and Svoboda, 1985
Majer, V.; Svoboda, V., Enthalpies of Vaporization of Organic Compounds: A Critical Review and Data Compilation, Blackwell Scientific Publications, Oxford, 1985, 300. [all data]

Zinner, 1953
Zinner, H., Perparation of Mercaptans, Chem. Ber., 1953, 86, 825. [all data]


Notes

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