What are the physical properties of high purity sulfur hexafluoride
Published on:2017-09-11 Click:191High purity sulfur hexafluoride at normal temperature and pressure,colorless,tasteless,non-toxic,non-combustible,stable chemical properties,high density,about 5 times that of air,after compression liquefaction,generally in liquid form,into the cylinder for transport.It is widely used in electrical equipment.
The main characteristics of high purity sulfur hexafluoride are very strong electrical insulation and arc extinguishing performance.Because of its high molecular weight,sulfur hexafluoride ion in the electric field,the running speed is relatively small,easy to occur compound.The fluorine ion reduces the charged particle of the gas and improves the insulation level of the gas greatly.
Because fluorine element on the electron***affinity force,so high purity sulfur hexafluoride electronegativity is very strong,can attract electrons,the formation of negative ions,so the arc extinction performance of the gas is very strong.Therefore,it is widely used in electrical equipment.
The pure sulfur hexafluoride gas is inert,and the discharge phenomenon will cause the decomposition of the gas.Under the action of electric arc,the gas decomposing,producing sulfur and fluorine single atoms,after the arc extinguished,most of the reducible,only a small part in the recombination,with free metal atoms and water chemical reaction,produce toxic substances.
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