Sulfur hexafluoride is a gas supplied in medical ar as check gas in respiratory mechanism due it is inert in body. It is greatly used as electric insulator. In comparison with its lot of applications, sulfur hexafluoride is a potent greenhouse gas


Formula and structure: The sulfur hexafluoride chemical formula is SF6 and also its molar massive is 146.00554 g mol-1. The framework of sulfur hexafluoride is octahedron, v 6 fluorine atom bound to a main sulfur atom. Every S-F bond has actually a 90º angle. Its chemical structure have the right to be written as below, in the typical representations provided for organic molecules.

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Occurrence: Sulfur hexafluoride gas and the other SxFy gases, were not freely- created by nature. However, in these days these are uncovered in the setting as part of greenhouse gases.

Preparation: Sulfur hexafluoride is synthesized through expositing elemental sulfur (crystal solid S8) and elemental fluorine (gas F2) at 300 ºC. After ~ the reaction finishes, the SF6 is purified by heater or alkali washing come remove various other SxFy gases.

1/8S8 + 3F2 → SF6

Physical properties: sulfur hexafluoride is a colorless, tasteless and odorless gas. SF6 is non-flammable and it is six times heavier 보다 air, its density is 6.602 g mL-1. The boiling allude is -64 ºC. The is slightly soluble in water and also other polar solvents. Sulfur hexafluoride is shipped together a liquefied gas.

Chemical properties: In spite, sulfur hexafluoride has actually 6 fluorine atoms, which is the most electronegative atom in the regular table, the dipole minute is 0. It is since the octahedral geometry permit the cancelation of every dipoles associated to the six S-F bonds. In consequence, sulfur hexafluoride is a non-polar molecule that is just slightly soluble in polar compounds. Other vital fact around the chemistry of SF6, that is a very stable compound, therefore it can not be fastened by various other chemical compounds and can be present in the atmosphere for countless decades, which is an ecological problem.

Uses: Sulfur hexafluoride is broadly used, as dielectric tool in the manufacturing of electric equipment fan its high relative permittivity. The magnesium sector is the second major consumed of sulfur hexafluoride, whereby it functions as a gas to fill spreading forms. Thus, SF6 has a selection of application in the medicine, whereby it is used in retinal surgeries to repair the vitreous chamber. Moreover, sulfur hexafluoride is injected as contrast agent because that ultrasound imaging.

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Health effects/safety hazards: sulfur hexafluoride is non-toxic, but it could be dangerous once inhaled huge quantity the gas and it have the right to lead to asphyxia. SF6 is the many potent greenhouse gas (gas responsible through the global warming) early its long-time life and its volume to absorb or emit radiation in the atmosphere.