Sulfur hexafluoride
Appearance
Sulfurhexafluoride (SF6) is a colorless, odorless, nontoxic, nonflammable, liquefied gas.
Sulfurhexafluoride is used as an insulator for circuit breakers, switch gear, and other electrical equipment. It is also emmited during the aluminium smelting process.
SF6 has a GWP (global warming potential) 22,200 times that of CO2.