Application of sulfur hexafluoride gas in the industry

1. A new generation of ultra-high voltage insulating dielectric materials. As a good gas insulator, SF6 gas is widely used for gas insulation of electronic and electrical equipment.

2. Electronic grade high-purity sulfur hexafluoride is an ideal electronic etchant, widely used in the field of microelectronics technology, and used as a plasma etching and cleaning agent in the manufacture of large integrated circuits such as computer chips and LCD screens. It is used as a fluorine source for the production of fluorine-doped glass in the preparation of optical fibers, and as a dopant for the isolation layer in the manufacture of low-loss high-quality single-mode optical fibers. It can also be used as a doping gas for nitrogen excimer lasers.

3. It is used as a tracer, standard gas or standard mixed gas in meteorology, environmental testing and other departments. It is used for air pollution monitoring and hydrogeological research. As a tracer for measuring air pollution that is currently widely used, the tracer distance of sulfur hexafluoride can reach 100 kilometers.

4. It can be used as a refrigerant in the refrigeration industry (operating temperature between -45 and 0°C). It has good chemical stability and is non-corrosive to equipment. As a refrigerant to replace Freon, it has no destructive effect on the ozone layer, meets the requirements of environmental protection and performance, and is a refrigeration with great development potential.

5. Medical use. SF6 is used to provide retinal hole filling or plugging in the form of bubbles in retinal detachment repair operations. Contrast agent for ultrasound angiography of liver tumors. Insulating gas for X-ray devices.

6. Mining industry. Used as an anti-adsorbent to replace oxygen in coal dust in mines.