Wiktionary
n. (context chemistry English) a gaseous binary compound, SF6, of sulfur and fluorine, used in the electricity industry as a dielectric
WordNet
n. a colorless gas that is soluble in alcohol and ether; a powerful greehouse gas widely used in the electrical utility industry [syn: sulphur hexafluoride]
Wikipedia
Sulfur hexafluoride (SF) is an inorganic, colorless, odorless, non- flammable, extremely potent greenhouse gas, which is an excellent electrical insulator. has an octahedral geometry, consisting of six fluorine atoms attached to a central sulfur atom. It is a hypervalent molecule. Typical for a nonpolar gas, it is poorly soluble in water but quite soluble in nonpolar organic solvents. It is generally transported as a liquefied compressed gas. It has a density of 6.12 g/L at sea level conditions, considerably higher than the density of air (1.225 g/L).
Usage examples of "sulfur hexafluoride".
So the plan called for production and release of tons of carbon tetrafluoride, hexafluoroethane, sulfur hexafluoride, methane, nitrous oxide, and trace elements of other chemicals which helped to decrease the rate at which UV radiation destroyed these halocarbons.