Formula: SF6 CAS NO.:2551-62-4; UN Number: UN1080 Density (air = 1): 5.11; Boiling Point: -51; Density (water = 1): 1.67 (-100); Solubility:Sparingly soluble in water, ethanol and ether. Properties: Sulfur Hexafluoride is a colorless, noncorrosive, innoxious and uncombustible gas. It is chemical stable with good insulation. Applications:SF6 is mainly used in power industries, metallurgy industries,meteorology industries and so on.At present,SF6 is widely used in circuit breaker, electric allocating system,transformer,arrester, capacitor,mutual inductor,particle accelerator,tracer for atmospheric diffusion testing ,refrigerants ,Anti-oxidants for smelting Mg,Al ,and relevant alloy.It also can be used as etchant in semiconductor industry,as fiber separation layer dopant in the process of manufacturing optical fiber,It is also a kind of important laser material in the application of laser. Now,the product of FS6 has also been used in the field of aviation,spaceflight and medical treatment.