Sulfur hexafluoride gas by elemental synthesis,reaction will also generate sulfur other fluoride such as disulfide decafluoride,can be disproportionated by heating,then with sodium hydroxide treatment to remove the remaining sulfur tetrafluoride and purification.It is a colorless,tasteless,non-toxic gas,non-combustible,slightly soluble in water.The molecule has octahedral configuration,belongs to the supervalent molecule,and has no polarity.sf6 is commonly used as a refrigerant and insulation and anti-arc gas in power transmission and distribution equipment,but it is also a long-lasting greenhouse gas,22,200 times more effective than carbon dioxide.Let's take a look at the wide range of uses.

　　1.Sulfur hexafluoride gas is used in sf6 circuit breaker.

　　2,used in GIS(here refers to sulfur hexafluoride closed combination electrical appliances,internationally known as"gas insulated switchgear.

　　3,used in SF6 load switch equipment.

　　4.Sulfur hexafluoride gas is used in SF6 insulated transmission lines.

　　5,used in SF6 transformer and SF6 insulation substation.

　　6,SF6 gas used in circuit breaker,high voltage transformer,gas closed combination capacitor,high voltage transmission line,transformer.

　　7,electronic grade SF6 is an ideal electronic etching agent,is widely used in the field of microelectronics technology.

　　8,the freezing industry with sulfur hexafluoride gas as a refrigerant,the cooling range can be between-45℃~0℃.

　　9,the electrical industry uses its very high dielectric strength and good arc extinguishing performance,used as high voltage switches,large capacity transformers,high voltage cables and gas insulation materials.

　　10.The mining industry uses sulfur hexafluoride gas as a reverse adsorbent to replace oxygen in mine coal dust.

　　11,high purity sulfur hexafluoride also because of its chemical inert,non-toxic,non-combustible and non-corrosive,is also widely used in metal smelting(such as magnesium alloy melting furnace protective gas),aerospace,medical(X-ray machine,laser machine),meteorological(tracer analysis),chemical(***automobile tires,new fire extinguishers)and so on.