Sulfur hexafluoride (SF6) is an inorganic, colorless, odorless, non-flammable, extremely potent greenhouse gas, which is an excellent electrical insulator.
Industrial Use
- In semiconductor manufacturing, sulfur hexafluoride is a fluorine source for high-density plasma etching without generating carbon by-products. It can be used for etching metal silicides (specially tungsten etchback), nitrides and oxides versus their metal substrates.
- Sulfur hexafluoride is an insulating material used as a dielectric in electrical transformers.
- It can be used as an inert blanketing agent and as a tracer gas for determining ventilation rates and air movements in buildings.
Physical and Chemical Properties:
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