Sulfur hexafluoride Other names: Elegas; Esaflon; Hexafluorure de soufre; OC-6-11; SF6; Sulfur fluoride; UN 1080; sulphur hexafluoride. InChI: InChI=1S/F6S/c1-7(2,3,4,5)6 InChI Key: SFZCNBIFKDRMGX-UHFFFAOYSA-N Formula: F6S SMILES: FS(F)(F)(F)(F)F Molecular Weight: 146.05 CAS: 2551-62-4 Physical Properties Property Value Unit Source PAff 575.30 kJ/mol NIST Webbook BasG 550.70 kJ/mol NIST Webbook BasG 575.30 kJ/mol NIST Webbook EA 0.91 ± 0.07 eV NIST Webbook EA 1.03 ± 0.05 eV NIST Webbook EA 1.07 ± 0.07 eV NIST Webbook EA 1.15 ± 0.15 eV NIST Webbook EA 1.05 ± 0.10 eV NIST Webbook EA 1.39 ± 0.13 eV NIST Webbook EA 0.80 eV NIST Webbook EA 1.20 ± 0.30 eV NIST Webbook EA 0.54 eV NIST Webbook EA 0.93 eV NIST Webbook EA 2.60 ± 0.10 eV NIST Webbook EA 2.60 ± 0.10 eV NIST Webbook EA 3.16 eV NIST Webbook EA 0.70 eV NIST Webbook Property Value Unit Source EA 0.46 ± 0.20 eV NIST Webbook EA 0.75 ± 0.10 eV NIST Webbook EA 0.54 ± 0.17 eV NIST Webbook EA 0.53 ± 0.10 eV NIST Webbook EA 0.60 ± 0.10 eV NIST Webbook EA 0.95 ± 0.52 eV NIST Webbook EA 0.43 eV NIST Webbook EA 0.70 eV NIST Webbook EA 1.10 eV NIST Webbook EA 0.32 ± 0.15 eV NIST Webbook EA 1.49 ± 0.22 eV NIST Webbook ∆ G° -1396.14 Joback Method f kJ/mol ∆ H° -1401.36 Joback Method f gas kJ/mol ∆ H° 11.64 Joback Method fus kJ/mol ∆ H° 18.10 Joback Method vap kJ/mol IE 15.32 ± 0.02 eV NIST Webbook IE 15.30 eV NIST Webbook IE 15.30 eV NIST Webbook IE 15.35 ± 0.02 eV NIST Webbook IE 15.70 eV NIST Webbook IE 15.70 eV NIST Webbook IE 15.69 eV NIST Webbook IE 15.81 eV NIST Webbook logP 3.17 Crippen Method oct/wat P 2490.00 ± 30.00 NIST Webbook c kPa P 3758.60 ± 0.50 NIST Webbook c kPa T 209.30 NIST Webbook boil K T 568.80 ± 0.70 NIST Webbook c K Property Value Unit Source T 318.72 NIST Webbook c K T 318.71 ± 0.01 NIST Webbook c K T 318.76 NIST Webbook c K T 591.85 ± 0.05 NIST Webbook c K T 62.22 Joback Method fus K T 223.72 ± 0.01 NIST Webbook triple K V 0.20 ± 0.00 3 NIST Webbook c m /kg-mol V 0.20 3 NIST Webbook c m /kg-mol Temperature Dependent Properties Property Value Unit Temperature (K) Source C 97.31 J/mol×K 266.6 Joback Method p,gas ∆ H 23.20 ± 0.01 186.0 NIST Webbook sub kJ/mol ∆ H 23.30 191.0 NIST Webbook sub kJ/mol Sources Joback Method: https://en.wikipedia.org/wiki/Joback_method NIST Webbook: http://webbook.nist.gov/cgi/inchi/InChI=1S/F6S/c1-7(2,3,4,5)6 Crippen Method: http://pubs.acs.org/doi/abs/10.1021/ci990307l Legend PAff: Proton affinity (kJ/mol). BasG: Gas basicity (kJ/mol). C : Ideal gas heat capacity (J/mol×K). p,gas EA: Electron affinity (eV). ∆ G°: Standard Gibbs free energy of formation (kJ/mol). f ∆ H° : Enthalpy of formation at standard conditions (kJ/mol). f gas ∆ H°: Enthalpy of fusion at standard conditions (kJ/mol). fus ∆ H: Enthalpy of sublimation at a given temperature (kJ/mol). sub ∆ H°: Enthalpy of vaporization at standard conditions (kJ/mol). vap IE: Ionization energy (eV). logP : Octanol/Water partition coefficient . oct/wat P : Critical Pressure (kPa). c T : Normal Boiling Point Temperature (K). boil T : Critical Temperature (K). c T : Normal melting (fusion) point (K). fus T : Triple Point Temperature (K). triple V : Critical Volume (m3/kg-mol). c Latest version available from: https://www.chemeo.com/cid/68-061-9/Sulfur%20hexafluoride Generated by Cheméo on Tue, 28 Sep 2021 02:00:11 +0000. Cheméo (https://www.chemeo.com) is the biggest free database of chemical and physical data for the process industry..