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|Greenhouse Gas:||Yes||Other Names:||(OC-6-11)-Sulfurfluoride|
|Mol File:||2551-62-4.mol||Application:||Circuit Breaker,high-voltage Transmission Line, CIS, Large Cable Coil, Mutual Inductor, Lightning Arrester.|
|RIDADR:||UN 1080 2.2||Stability::||Stable. Explodes On Contact With Disilane. Reacts With Sodium.|
50 L Cylinder Packed SF6 Gas , Sulfur Hexafluoride Gas Used For The Switchgear
Sulfur hexafluoride gas is nonflammable and has good insulation performance and arc suppression performance. In the 1960s, it was first used in circuit breakers, and then expanded to use in various electrical equipment such as transformers and cables
Sulfur hexafluoride (SF6) is an inorganic, colorless, odorless, non-flammable, extremely potent greenhouse gas, which is an excellent electrical insulator. SF6 has an octahedral geometry, consisting of six fluorine atoms attached to a central sulfur atom.
It is a hypervalent molecule. Typical for a nonpolar gas, it is poorly soluble in water but quite soluble in nonpolar organic solvents. It is generally transported as a liquefied compressed gas.
It has a density of 6.12 g/L at sea level conditions, considerably higher than the density of air
This substance undergoes chemical reactions only under relatively severe circumstances. They are resistant to ignition, although they may become flammable at very high temperatures. They may be resistant to oxidation reduction, except in the most severe conditions. These materials may be nontoxic. They can asphyxiate. Contact of very cold liquefied gas with water may result in vigorous or violent boiling of the product and extremely rapid vaporization due to the large temperature differences involved. If the water is hot, there is the possibility that a liquid "superheat" explosion may occur. Pressures may build to dangerous levels if liquid gas contacts water in a closed container [Handling Chemicals Safely 1980].
Vapors may cause dizziness or asphyxiation without warning. Vapors from liquefied gas are initially heavier than air and spread along ground. Contact with gas or liquefied gas may cause burns, severe injury and/or frostbite. Fire may produce irritating, corrosive and/or toxic gases.
7.Some may burn but none ignite readily. Containers may explode when heated. Ruptured cylinders may rocket.
1. Physical properties
|Standard Package Container||40L/150bar cylinder|
2. Typical technical data (COA)
|Grade Classification||GB/T12022-2006||High Purity|
|Hydrolyze fluoride(As HF) ppm||≤1||≤0.2|
|Mineral oil ppm||≤4||≤1|
|Electrical Industries Circuit Breaker||
leak detection and as a gaseous dielectric for transformers, condensers
As an inert gas
For the casting of magnesium.as an etchant in the semiconductor
|As an inert filling||
Insulated glazing windows.
SF6 is used in the electrical industry as a gaseous dielectric medium for high-voltage circuit breakers, switchgear, and other electrical equipment, often replacing oil filled circuit breakers (OCBs) that can contain harmful PCBs.
SF6 is used to provide a tamponade or plug of a retinal hole in retinal detachment repair operations in the form of a gas bubble.SF6 is used as a contrast agent for ultrasound imaging. Sulfur hexafluoride microbubbles are administered in solution through injection into a peripheral vein.
Sulfur hexafluoride was the tracer gas used in the first roadway air dispersion model calibration; this research program was sponsored by the U.S. Environmental Protection Agency and conducted in Sunnyvale, California on U.S. Highway 101.Sulfur hexafluoride is also routinely used as a tracer gas in laboratory fume hood containment testing.