Sulfur Hexafluoride Gas SF6 UN1080 Sulfur hexafluoride gas is a colorless, odorless, nontoxic, nonflammable gas that is used as an insulating gas in electrical equipment. At atmospheric pressures, sulfur hexafluoride gas sublimes directly from a solid to a gas. It is shipped as a liquefied compressed gas at its vapor pressure of 298 psig at +70°F (21.5 bar at +21.3°C). Sulfur hexafluoride gas is used for leak detection and as a gaseous dielectric for transformers, condensers, and circuit breakers. Sulfur hexafluoride gas is highly effective as an etchant in the semiconductor industry. Download Sulfur Hexafluoride PDF   previous - Oxygen Gas next - Xenon Gas