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sulphur trioxide

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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:
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Kenneth Kroenlein director
AC - William E. Acree, Jr., James S. Chickos

Quantity Value Units Method Reference Comment
Tfus290.1KN/AKondrat'ev and Strizhov, 1985Uncertainty assigned by TRC = 0.1 K; gamma phase; TRC
Quantity Value Units Method Reference Comment
Deltavap45.5 ± 0.8kJ/molN/AKondrat'ev and Strizhov, 1985Based on data from 290. - 318. K.; AC

Enthalpy of vaporization

DeltavapH (kJ/mol) Temperature (K) Reference Comment
46.7290.Kondrat'ev and Strizhov, 1985Based on data from 290. - 318. K.; AC
32.4368.Abercromby and Tiley, 1963Based on data from 353. - 473. K.; AC

Antoine Equation Parameters

log10(P) = A − (B / (T + C))
    P = vapor pressure (bar)
    T = temperature (K)

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Temperature (K) A B C Reference Comment
333. - 483.4.20515892.175-103.564Abercromby and Tiley, 1963, 2Coefficents calculated by NIST from author's data.

Enthalpy of fusion

DeltafusH (kJ/mol) Temperature (K) Method Reference Comment
9.35290.2ACKondrat'ev and Strizhov, 1989Based on data from 16. - 332. K.; AC

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

Go To: Top, Phase change data, Notes

Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Kondrat'ev and Strizhov, 1985
Kondrat'ev, S.N.; Strizhov, B.V., Zh. Fiz. Khim., 1985, 59, 2933. [all data]

Abercromby and Tiley, 1963
Abercromby, D.C.; Tiley, P.F., 937. The Condensed phases of sulphur trioxide. Part II. Vapour pressure of the liquid at temperatures up to the critical point, J. Chem. Soc., 1963, 4902, https://doi.org/10.1039/jr9630004902 . [all data]

Abercromby and Tiley, 1963, 2
Abercromby, D.C.; Tiley, P.F., The Condensed Phases of Sulphur Trioxide. Part II. Vapour Pressure of the Liquid at Temperatures up to the Critical Point, J. Chem. Soc., 1963, 4902-4904, https://doi.org/10.1039/jr9630004902 . [all data]

Kondrat'ev and Strizhov, 1989
Kondrat'ev, S.N.; Strizhov, B.V., Russ. J. Phys. Chem., 1989, 63, 656. [all data]


Notes

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