Disulfur decafluoride

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Structure and dimensions of the disulfur decafluoride molecule
Space-filling model of the disulfur decafluoride molecule Ball-and-stick model of the disulfur decafluoride molecule
Disulfur Decafluoride
Molecular formula S2F10
Molecular Weight 254.1
Appearance Colorless
Structure Octahedral
CAS number [5714-22-7]
Properties
Melting point -53 °C
Boiling point 30.1 °C
Vapor Pressure
25 °C 675 mm Hg

Disulfur Decafluoride, or S2F10, is a gas discovered in 1934 by Denbigh and Whytlaw-Gray. Each S of the S2F10 molecule is octahedral, and surrounded by 5 fluorines. S2F10 is highly toxic, with toxicity similar to phosgene. It was considered a potential chemical warfare agent in World War II because it does not produce lacrimation or skin irritation, thus providing little warning of exposure. It is a possible by-product of electrically decomposed SF6, a gaseous insulator used in high voltage systems such as transmission lines, substations and switchgear.

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