Entry: Sulfur hexafluoride
URI: https://terra-vocabulary.org/ncl/DataTerraRepositoryFairIncubator/motsClefs/c_6d01bcd1
[Wikipedia] Sulfur 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. 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, SF6 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 SF6 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 SF6 gas contained in its medium- and high-voltage switchgear. Uses in magnesium, aluminum, and electronics manufacturing also hastened atmospheric growth.
Core metadata
is a | Concept | feature of interest |
changed on | 17 Nov 2023 08:31:48.881 |
submitted by | Hélène Bressan |
accepted on | 22 May 2023 15:03:11.824 |
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date accepted |
22 May 2023 15:03:11.824
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date submitted |
22 May 2023 13:21:09.507
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Concept
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modified |
17 Nov 2023 08:31:48.881
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notation |
c_6d01bcd1
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register |
mots clefs
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status |
status experimental
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register item
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version info |
4
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Definition
alt label |
SF6
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description |
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exact match |
20872
| c 6d01bcd1
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in scheme |
Vocabulaire des mots clefs
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same as |
c 6d01bcd1
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top concept of |
Vocabulaire des mots clefs
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type |
Concept
| feature of interest
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was attributed to |
Pole THEIA
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