disulphur decafluoride


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.

Quantity Value Units Method Reference Comment
Δfgas-493.401kcal/molReviewChase, 1998Data last reviewed in December, 1977
Quantity Value Units Method Reference Comment
gas,1 bar94.852cal/mol*KReviewChase, 1998Data last reviewed in December, 1977

Gas Phase Heat Capacity (Shomate Equation)

Cp° = A + B*t + C*t2 + D*t3 + E/t2
H° − H°298.15= A*t + B*t2/2 + C*t3/3 + D*t4/4 − E/t + F − H
S° = A*ln(t) + B*t + C*t2/2 + D*t3/3 − E/(2*t2) + G
    Cp = heat capacity (cal/mol*K)
    H° = standard enthalpy (kcal/mol)
    S° = standard entropy (cal/mol*K)
    t = temperature (K) / 1000.

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Temperature (K) 298. to 1100.1100. to 6000.
A 32.2499068.41061
B 86.40371-0.912070
C -78.594100.169821
D 25.08270-0.011079
E -0.842054-3.281772
F -509.0421-523.9711
G 106.6540161.7250
H -493.4011-493.4011
ReferenceChase, 1998Chase, 1998
Comment Data last reviewed in December, 1977 Data last reviewed in December, 1977

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 by: William E. Acree, Jr., James S. Chickos

Enthalpy of vaporization

ΔvapH (kcal/mol) Temperature (K) Reference Comment
7.19241.Dykyj, Svoboda, et al., 1999Based on data from 226. to 322. K.
7.07237.Cohen and MacDiarmid, 1962Based on data from 222. to 273. K.

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.

Chase, 1998
Chase, M.W., Jr., NIST-JANAF Themochemical Tables, Fourth Edition, J. Phys. Chem. Ref. Data, Monograph 9, 1998, 1-1951. [all data]

Dykyj, Svoboda, et al., 1999
Dykyj, J.; Svoboda, J.; Wilhoit, R.C.; Frenkel, M.L.; Hall, K.R., Vapor Pressure of Chemicals: Part A. Vapor Pressure and Antoine Constants for Hydrocarbons and Sulfur, Selenium, Tellurium and Hydrogen Containing Organic Compounds, Springer, Berlin, 1999, 373. [all data]

Cohen and MacDiarmid, 1962
Cohen, Bernard; MacDiarmid, Alan G., Formation of Pentafluorosulfur Fluorosulfonate and Bispentafluorosulfur Oxide from the Direct Reaction of the Elements, Inorg. Chem., 1962, 1, 4, 754-756, https://doi.org/10.1021/ic50004a008 . [all data]


Notes

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