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Sulphur hexafluoride. SF6 is a gas that is used in electrical power equipment. It is colourless, odourless, non-flammable and chemically stable. This means that at room temperature it does not react with any other substance. Stability comes from the symmetrical arrangement of the six fluorine atoms around the central sulphur atom. And this stability is just what makes the gas useful in electric equipment. SF6 is a very good electrical insulator and can effectively extinguish arcs, which makes high and medium voltage apparatus filled with SF6 highly popular. SF6 can be found in millions of electric apparatus all over the world; electrical equipment containing SF6 is a large export article.
SF6 is formed by a chemical reaction between molten sulphur and fluorine. Fluorine is obtained by the electrolysis of hydrofluoric acid (HF).
Pure SF6 is not poisonous. The gas is not dangerous to inhale, provided the oxygen content is high enough. In principle you can inhale a mixture of 20% oxygen and 80% SF6 without danger. SF6 is about 6 times heavier than air. That means that it may collect in cable ducts or at the bottom of tanks. The gas is not dangerous to inhale but if it does accumulate where people work, there is a risk of suffocation due to the lack of oxygen.

SF6 is a non-flammable gas that is used in electrical apparatus.
SF6 is not poisonous.




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  • Sulphur Hexafluoride
  • 1.Sulphur Hexafluoride

    Gas SF6 Purity :from 99%-99.99%. IMO cargo-Class 2.2 UN 1080 Below is our factory QC acceptance limit comparation with standard GB/T12022-2006 and IEC376-71 : Item GB/T12022-2006 IEC376-71 EVERSTAR QC Limit SF6 (%) ≥99.9 ≥99.8 ≥99.9 ≥99.99 AIR(%)...

    Sulphur Hexafluoride 2009-12-02
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EVER STAR INDUSTRIES CO., LTD is a private enterprise,dedicated itself to designing, producing Medical Intermediate, Gas SF6, Gas F2, Insecticide, Herbicides, and other related products.The Company has adopted ISO9001:2000 quality management system certificate and CE,RoHS industries approvals.