Sulfur hexafluoride (SF6) 50kg

Sulfur hexafluoride (SF6) has good insulation properties and arc-extinguishing properties, and is widely used in circuit breakers, high-voltage switches, high-voltage transformers, gas-enclosed combined capacitors, high-voltage transmission lines, transformers and other electrical equipment. SF6 is also widely used in metal smelting (such as protective gas for magnesium alloy melting furnaces), aerospace, medical (X-ray machines, lasers), meteorology (tracing analysis), chemical industry (advanced automobile tires, new fire extinguishers), etc. because of its chemical inertness, non-toxicity, non-combustible and non-corrosive properties. Electronic grade high-purity sulfur hexafluoride is an ideal electronic etchant and is widely used in the field of microelectronic technology. With the development of today's science and technology, the fields involved in SF6 continue to expand and are widely used in more and more basic fields and scientific and technological fields.

Sulfur hexafluoride has strong chemical stability. It does not decompose at 500 ° C-600 ° C, does not react with acids, bases, salts, ammonia, water, etc., and decomposes into atomic gases of S and F under the action of arc (several thousand degrees). However, once the electric arc is lifted, it recombines into SF6 within 105-106 seconds. Sulfur hexafluoride has good electrical insulation properties and excellent arc extinguishing properties. Its electrical strength is 2.5 times that of fluorine gas under the same pressure, its breakdown voltage is 2.5 times that of air, and its arc extinguishing capacity is 100 times that of air. It is a new generation of high-voltage insulating dielectric material superior to air and oil.

SF6 is a colorless, odorless, non-toxic, non-combustible, non-corrosive inert gaseous substance at atmospheric pressure. Molecular weight: 146, gas density: 6.139 g/l (20℃, atmospheric pressure), melting point: -50.8℃, freezing point: -63.8℃, critical temperature: 45.64℃, critical pressure: 3.84MPa, critical density: 0.73 g/cm3, critical volume: 198m1/mol1, dielectric constant: 1.002026 (25℃, atmospheric pressure).

Packaging and transportation of sulfur hexafluoride
Sulfur hexafluoride is not corrosive to metals and alloys. It can be contained in steel cylinders and transported as liquefied gas. Steel cylinders are inspected every five years and can be transported by cars, trains, ships and planes. During storage, transportation and use, the ambient temperature should be maintained at 45℃. Reusable steel cylinder packaging with a net weight of 50kg/bottle.

Safety and protection of sulfur hexafluoride
Pure sulfur hexafluoride gas is non-toxic and can be considered as a non-toxic or low-toxic gas during the processing of sulfur hexafluoride. At high concentrations, it is a suffocation gas. Therefore, good ventilation should be maintained on site.