SF6
Sulfur hexafluoride · SF6
Sulfur hexafluoride is a chemically inert, wide-gap insulating gas primarily used as a dielectric medium in high-voltage electrical infrastructure.
About Sulfur hexafluoride
Sulfur hexafluoride is a highly stable inorganic compound characterized by its inert nature and wide-gap insulating electronic profile. Its unique molecular structure contributes to its exceptional chemical stability, making it a critical material in industrial settings where electrical insulation is paramount.
Due to its remarkable dielectric strength and ability to quench electrical arcs, this compound serves as a vital medium in high-voltage power transmission systems. It is extensively deployed in gas-insulated switchgear and circuit breakers to ensure the safe and reliable operation of power grids.
Key Properties
Cross-validated computational properties for Sulfur hexafluoride, aggregated across 3 databases.
Band GapEnergy needed to move an electron from the valence band to the conduction band. Lower or zero values tend to behave more metallic; larger gaps are more insulating or semiconducting.
Energy Above HullThermodynamic distance from the most stable set of competing phases. 0 eV/atom is on the convex hull; small positive values may still be experimentally accessible.
StabilityA plain-language summary of the best reported energy-above-hull result. It reflects whether the lowest-energy structure is on, near, or far from the stability hull.
StructuresCount of reported calculated crystal structures for this formula, including alternate polymorphs, source databases, and observed space groups.
Applications
Where Sulfur hexafluoride is used.
Patent Landscape
8 patents reference SF6 or close compositional variants.
| Patent | Title | Assignee | Granted |
|---|---|---|---|
| 6886573 | Plasma cleaning gas with lower global warming potential than SF6 | — | — |
| 4331504 | Etching process with vibrationally excited SF.sub.6 | — | — |
| 6723153 | Isolation of SF6 from insulating gases in gas-insulated lines | — | — |
| 6105631 | Preparation of homogeneous gas mixtures with SF.sub.6 | — | — |
| 6004377 | System for collecting and refining SF.sub.6 gas and method therefor | — | — |
| 4390511 | Process for producing SF.sub.6 through SF.sub.5 Cl | — | — |
| 12122685 | Method for preparing MoF6 based on plasma activation of SF6 | — | — |
| 6103630 | Adding SF.sub.6 gas to improve metal undercut for hardmask metal etching | — | — |
Frequently Asked Questions
Common questions about Sulfur hexafluoride, answered from cross-validated data.
What is SF6?
Sulfur hexafluoride is a chemically inert, wide-gap insulating gas primarily used as a dielectric medium in high-voltage electrical infrastructure.
What is SF6 used for?
What is the band gap of SF6?
Is SF6 a metal, semiconductor, or insulator?
Is SF6 thermodynamically stable?
How many polymorphs of SF6 are known?
What elements does SF6 contain?
Where does the data for SF6 come from?
How It Compares
As a highly stable and inert gas, sulfur hexafluoride stands out as a specialized insulating medium that is uniquely suited for high-voltage electrical applications compared to more reactive or conductive inorganic substances.
Data sources & attribution
- latticegraph — Lattice Graph Materials Intelligence Platform
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