E02 No.509 Floor 5 Unit3 Building1 No.1700 Tianfu Avenue North Section High-tech district Chengdu City  Pilot Free Trade Zone China(Sichuan)

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Sulfur Hexafluoride, SF6 Specialty Gas

CAS NO  2551-62-4
UN NO  UN1080
EINECS NO  219-854-2
Molecular weight  146.05
Appearance  Colorless, Odorless
Melting point  -50.8 ℃
Boiling point  -63.8 ℃
Density  6.0886 kg/m³
DOT Class  2.2
Label  Non-flammable Gas


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SF6 is a colorless gas with an irritating odor. It is widely used in electric appliances with excellent insulating and arc extinguishing properties.

It is also used in metal smelting for its some properties of chemically inert, non-toxic, non-combustible, and non-corrosive properties.


Electron grade high purity sulfur hexafluoride is widely used in microelectronics technology as an ideal gas for electron etching.

As a single film fiber isolation layer dopant in the manufacture of optical fiber, as a tracer in the field of air pollution monitoring and hydrogeological detection, contrast agent of contrast-enhanced ultrasound examination of liver tumors is also used as hexatritiated sulfur.

Used as sulfur hexafluoride circuit breaker, interconductance sensor, sulfur hexafluoride lightning rod arc extinguishing gas, used as magnesium aluminum alloy die casting protection gas.

Industrial Grade

Air≤ 10 ppm
Carbon Tetrafluoride≤ 2 ppm
Hexafluoroethane≤ 20 ppm
Octafluoropropane≤ 5 ppm
Low SulfideNot Detected
Moisture≤ 1 ppm
Acidity as HF≤ 0.1 ppm
Hydrolysable Fluor ides as HF≤ 0.3 ppm
Mineral Oil≤ 1 ppm
Other Grades and Purity Available on Asking
Oxygen + Argon≤ 1 ppm
Nitrogen≤ 2 ppm
Methane≤ 0.1 ppm
Carbon Monoxide≤ 0.5 ppm
Carbon Tetrafluoride≤ 0.5 ppm
Carbon Dioxide≤ 0.5 ppm
Moisture≤ 3 ppm
Acidity as HF≤ 0.1 ppm
Hydrolysable Fluor ides as HF≤ 0.8 ppm
Other Grades and Purity Available on Asking

Package Information

Cylinder CapacityValveWeight
40LCGA 590 / QF-250 kgs
47LCGA 590 / QF-258 kgs
50LCGA 590 / QF-262 kgs
500LCGA 590 / QF-2625 kgs
Other Packages Available on Asking