Chemical Properties of Thionyl fluoride (CAS 7783-42-8)

Thionyl fluoride

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InChI Key
Molecular Weight1
Other Names
  • Fluorure de thionyle
  • OSF2
  • SOF2
  • Sulfur difluoride monoxide
  • Sulfur difluoride oxide
  • Sulfurous oxyfluoride
  • Thionyl difluoride

Physical Properties

Property Value Unit Source
Δf -658.21 kJ/mol Joback Calculated Property
Δfgas -641.29 kJ/mol Joback Calculated Property
Δfus 9.67 kJ/mol Joback Calculated Property
Δvap 26.69 kJ/mol Joback Calculated Property
IE [12.19; 12.70] eV Show Hide
IE 12.25 ± 0.05 eV NIST
IE 12.30 eV NIST
IE 12.58 ± 0.10 eV NIST
IE 12.25 eV NIST
IE 12.19 eV NIST
IE 12.70 eV NIST
IE 12.58 eV NIST
IE 12.60 eV NIST
IE 12.58 eV NIST
logPoct/wat 0.50 Crippen Calculated Property
Pc 6696.65 kPa Joback Calculated Property
Tboil 232.50 ± 2.50 K NIST
Tc 407.76 K Joback Calculated Property
Tfus 127.42 K Joback Calculated Property
Vc 0.16 m3/kg-mol Joback Calculated Property

Temperature Dependent Properties

Property Value Unit Temperature (K) Source
Cp,gas 54.21 J/mol×K 256.22 Joback Calculated Property
ΔvapH 23.70 kJ/mol 208.5 NIST

Molecular Descriptors

Joback and Reid Groups
=O 1
-F 2
-S- 1

Similar Compounds

Sulfuryl fluoride. Sulfur tetrafluoride oxide. Sulfur tetrafluoride. Sulfur trifluoride. Sulfur pentafluoride. Sulfur hexafluoride. Sulfuryl chloride fluoride. Methanesulfonyl fluoride. Thiazyl trifluoride. Sulfur monoxide. Monosulfur monofluoride. Sulfur dioxide. Imidosulfurous difluoride, methyl-. Ethanesulfonyl fluoride. Disulfur monoxide.

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