Special Gas SF6 Sulphur Hexafluoride

SF6 Sulphur Hexafluoride is an inorganic, colorless, odorless, non-flammable, extremely potent greenhouse gas, which is an excellent electrical insulator. SF6 Sulphur Hexafluoride has an octahedral geometry, consisting of six fluorine atoms attached to a central sulfur atom.

 

MF:SF6

Purity:99.995%~99.999%

Dot Class:2.2

Other Names:Sulfur hexafluoride gas

CAS NO: 2551-62-4

Grade Standard:Electron Grade, Industrial Grade

 

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SF6 Sulphur Hexafluoride boasts a suite of remarkable properties, making it highly coveted for insulation and various other applications. This colorless and odorless gas possesses a vapor density approximately five times greater than that of air. Under normal operating temperatures, it maintains its gaseous state up to pressures around 250 PSI.

Key properties of SF6 gas that render it exceptionally valuable to the electrical utility sector include:

1. Colorless and Odorless: SF 6 gas is devoid of any discernible color or smell.

2. High Density: It is five times heavier than air, ensuring it stays in vapor form until around 250 PSI @ 68°F.

3. Temperature Resistance: SF6 gas exhibits remarkable temperature resilience, capable of withstanding up to 500°C.

4. Non-Inflammable: Sulphur hexafluoride gas does not support combustion, rendering it non-flammable.

5. Chemical Structure: SF6 boasts a stable molecular structure, ensuring chemical stability.

6. Non-Toxic Nature: It is harmless to living organisms and non-toxic in nature.

7. Excellent Dielectric Properties: SF6 demonstrates high dielectric strength, making it an exceptional insulating material.

8. Outstanding Arc Quenching: It exhibits remarkable capabilities in extinguishing electric arcs.

9. Electronegative Nature: SF6 does not readily form other compounds that could alter its efficacy or condition.

SF6 sulphur hexafluoride is prepared by the reaction of sulphur and fluorine at a high temperature (S+3F2→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.

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