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Chemical formula: SF₆Melting point: −64 &C; −83 &F; 209 KMolar mass: 146.06 g/molSolubility in water: 0.003% (25 &C)Missing:insulation WayMust include:insulation WayOverviewSulfur hexafluoride (SF6) or sulphur hexafluoride (British spelling), is an extremely potent and persistent greenhouse gas that is primarily utilized as an electrical insulator and arc suppressant. It is inorganic, colorless, odorless, non flammable, and non toxic. SF 6 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, SF 6 is poorly soluble in water but quite soluble in nonpolar organic solvents. It has a density of 6.12 g/L at sea level conditions, considerably higher than the density of air (1.225 g/L). It is generally transported as a liquefied compressed gas. The concentration of SF 6 in Earth's troposphere reached 10 parts per trillion (ppt) in year 2019, rising at 0.35 ppt/year. The increase over the prior 40 years was driven in large part by the expanding electric power sector, including fugitive emissions from banks of SF 6 gas contained in its medium and high voltage switchgear. Uses in magnesium, aluminum, and electronics manufacturing also hastened atmospheric growth.
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2021/4/16ABB has become the partner of choice for Stadler Germany, a train maker currently working to deliver battery electric trains for regional and underground trains in Schleswig Holstein and Berlin. ABB will deliver traction converters and battery system to recharge electric locomotives running through the coastal state and on the underground in the German capital. The […]
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2014/4/5The molecular weight of this gas is 146.06. The variation of pressure with temperature is linear for sulfur hexafluoride and it is small within the service temperature, i.e. from – 25 to + 50 o C. The volumetric specific heat of this gas is also high.
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Hitachi ABB Power Grids has commissioned the world's first high voltage and medium voltage gas insulated switchgear (GIS) installation with a new eco efficient gas mixture as an alternative to sulfur hexafluoride (SF6) gas for ewz, a power utility in Switzerland.
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SF6 Refilling Evacuating Devices SF6 Refilling Evacuating Devices The mobile refueling device is installed on a cylinder car, which is convenient for carrying gas cylinders. The primary pressure gauge of the pressure reducing valve expresses the bottle pressure in bar, psi, and kPa. The secondary pressure gauge indicates the required filling pressure, which can be… Read More SF6 Refilling
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In medical technology sulphur hexafluoride is for example used for ultrasonic testing and in ophthalmology. SF 6 is also used in X ray equipment, radar systems, particle accelerators and electron microscopes. our company Company, Inc. 11642 Pyramid Drive E Mail
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2005/1/16The high voltage insulation and interrupting device in modern reclosers typically consist of solid dielectric insulation with vacuum interrupters for current interruption and arc quenching.   Reclosers are often used as a key component in a smart grid, as they are effectively computer controlled switchgear which can be remotely operated and interrogated using SCADA or other communications .
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