Sulfur hexafluoride, the chemical formula is SF6, is a colorless, odorless, non-toxic, non-flammable and stable gas with a molecular weight of 146.07 and a density of 6.1kg/m3 at 20°C and 0.1 MPa, which is about 5 of the air density. Times. Sulfur hexafluoride is gaseous at normal temperature and pressure, with a critical temperature of 45.6°C, a triple point temperature of -50.8°C, and a sublimation point temperature of -63.8°C under normal pressure. The molecular structure of sulfur hexafluoride is arranged in an octahedron, the bonding distance is small, and the bonding energy is high, so its stability is high. When the temperature does not exceed 180 ℃, its compatibility with electrical structural materials is similar to that of nitrogen.
Based on the excellent insulation of sulfur hexafluoride, sulfur hexafluoride is widely used in the electronics industry, such as circuit breakers, high-voltage transmission lines, cable reels, transformers, lightning rods, etc.
Cylinders or tanks for storage of sulphur hexafluoride. Store in a low temperature, dry, ventilated environment, avoid exposure to sunlight and rain.
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