Sulphur hexafluoride, often abbreviated as SF6.
Sulphur hexafluoride is a colourless, odourless and non-toxic gas at room temperature and pressure. Non-combustion thermal conductivity is more petite than air for an excellent cooling medium. Its unique stable regular octahedral molecular structure so that its chemical properties are also very inactive in the regular operation of electrical equipment, and copper, steel, aluminium and other electrical materials can not react. No corrosion, no active pharmacologic properties, no poison. Slightly soluble in water. It is widely used in the electrical industry.
SF6 CAS:2551-62-4
PURITY:99.99%~99.999%
Properties Of SF6 Sulphur Hexafluoride
From a chemically stable composition to its ability to withstand extreme conditions, SF6 gas is highly sought after for insulating uses and more. SF6 gas is colorless, odorless gas with a vapor density five times that of air. It is able to stay in vapor form (at normal operating temperatures) up to about 250 PSI. Some additional properties of SF6 which make it very desirable to the electrical utility sector are:
Colorless and odorless
5 times heavier than air
Temperature-resistant up to 500 °C
Non-inflammable
Chemically molecular structure
Non-toxic
Excellent dielectric properties (high dielectric strength)
Outstanding arc quenching properties
Five times higher density than air, meaning it stays in vapor form until about 250 PSI @ 68 deg F
Temperature-resistant up to 500° C
Electronegative, meaning it does not form other compounds that may change its condition or effectiveness
sulphur hexafluoride uses
It is estimated that approximately 80% of global SF6 gas usage occurs within the electrical industry. One of its main uses is as dielectric insulator in medium and high-voltage equipment . Some specific examples of Gas Insulated Equipment (GIE) s that utilize SF6 gas include:
Circuit breakers
Switchgear
Disconnectors and ground switches
Gas-insulated lines and substations
Capacitors
Outside the electrical utility sector, SF6 gas has many creative uses, from healthcare to household products. These applications include:
Ophthalmology
Ophthalmologists perform a surgery called a vitrectomy to treat issues affecting the retina and vitreous (the gel-like fluid filling the space between the lens and retina). During the procedure, surgeons can use SF6 to fill the void left after the vitreous gel is removed. It ensures the retina stays stable during recovery, and its high density can accelerate healing.
Windows – Noise Reduction
In some double-pane windows, a combination of SF6 and argon gas is used to fill spaces between the two panes of glass. This mixture can absorb sound waves, lowering the volume of outside noise.
Magnesium Production
While less often used for magnesium production in the U.S., SF6 gas can still be seen as a cover gas for this application in China and other countries. It can help keep magnesium from reacting with oxygen during production.
Etching Gas
Manufacturers may leverage SF6 as an etching gas because of its high density and large molecular size. Applications include producing semiconductor devices, among other components. Semiconductors are found in many common items, such as cell phones, televisions, and refrigerators.
Particle Accelerators
Particle accelerators drive beams of charged particles at high speeds using electric fields. They have many applications, from radiation therapy to national security. SF6 gas is often used as insulation in the accelerator tanks of this technology.
One-stop Special gas Factory in China
Send your inquiry about Sulphur hexafluoride SF6 gas to us!
We will provide high-quality SF6 gas and services to meet your purchasing needs.
