disulphur decafluoride
- Formula: F10S2
- Molecular weight: 254.114
- IUPAC Standard InChIKey: BHBIPLOIWQSVID-UHFFFAOYSA-N
- CAS Registry Number: 5714-22-7
- 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: Disulfur decafluoride
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Gas phase thermochemistry data
Go To: Top, Phase change data, References, Notes
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 |
---|---|---|---|---|---|
ΔfH°gas | -493.401 | kcal/mol | Review | Chase, 1998 | Data last reviewed in December, 1977 |
Quantity | Value | Units | Method | Reference | Comment |
S°gas,1 bar | 94.852 | cal/mol*K | Review | Chase, 1998 | Data 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 | 32.24990 | 68.41061 |
B | 86.40371 | -0.912070 |
C | -78.59410 | 0.169821 |
D | 25.08270 | -0.011079 |
E | -0.842054 | -3.281772 |
F | -509.0421 | -523.9711 |
G | 106.6540 | 161.7250 |
H | -493.4011 | -493.4011 |
Reference | Chase, 1998 | Chase, 1998 |
Comment | Data last reviewed in December, 1977 | Data last reviewed in December, 1977 |
Phase change data
Go To: Top, Gas phase thermochemistry data, References, Notes
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 |
---|---|---|---|
7.19 | 241. | Dykyj, Svoboda, et al., 1999 | Based on data from 226. to 322. K. |
7.07 | 237. | Cohen and MacDiarmid, 1962 | Based on data from 222. to 273. K. |
References
Go To: Top, Gas phase thermochemistry data, Phase change data, Notes
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
Go To: Top, Gas phase thermochemistry data, Phase change data, References
- Symbols used in this document:
S°gas,1 bar Entropy of gas at standard conditions (1 bar) ΔfH°gas Enthalpy of formation of gas at standard conditions ΔvapH Enthalpy of vaporization - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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