Is sulfur hexafluoride gas toxic?
Pure sulfur hexafluoride gas is a colorless, odorless, non-toxic and non-flammable inert gas. Its relative density is 6.16g/cm3 (at 20 degrees, 0.1MPA) in the gaseous state and 1400g/cm3 (at 20 degrees) in the liquid state; it is about 5 times the relative density of air in the same state. In order to facilitate transportation and storage, sulfur hexafluoride gas (SF6) gas usually exists in a steel cylinder in liquid form. Pure sulfur hexafluoride gas is non-toxic, but because of its special preservation method, if it leaks, it will chemically react with other substances, thereby turning into harmful gas. Pure sulfur hexafluoride gas is non-toxic, but in When the large current is interrupted, some low fluoride containing sulfur will be produced due to the strong arc discharge. These substances have a strong reaction ability, and when there is water and oxygen, they will react with electrical materials and moisture to decompose to produce toxic or highly toxic gases. These toxic gases mainly damage the human respiratory system. After being poisoned, adverse reactions such as colds, skin allergies, nausea and vomiting, and fatigue will occur. When inhaled in large doses, more serious consequences will occur.
Electronic sulfur hexafluoride
Sulfur hexafluoride gas (SF6) toxicity source Under normal conditions of use, sulfur hexafluoride gas is non-toxic, but under certain circumstances it will produce certain toxicity, such as:
(1) The product of sulfur hexafluoride gas is impure, and it contains toxic sulfur fluoride, hydrogen fluoride and other toxic gases when it is produced and shipped.
(2) Toxic products produced by the SF6 gas of electrical equipment in the action of high-temperature arc.
(3) The SF6 gas decomposition product in the electrical equipment reacts with the moisture inside to produce some toxic products.
(4) Toxic products generated by the reaction of SF6 gas and decomposition products in electrical equipment with electricity (CU-W alloy) and metal materials.
(5) The SF6 gas and decomposition products in electrical equipment react with the peripheral materials to generate certain toxic products.
Industrial sulfur hexafluoride
The hazards of sulfur hexafluoride How did the hazards of sulfur hexafluoride occur? It should be known that there are many industries that need to use SF6 gas, and there are also many manufacturers that produce SF6 gas. These are all emission sources of SF6 gas, and the hazards of sulfur hexafluoride are also caused by these emission sources. For example, if a manufacturer that produces SF6 gas has poor management and immature technology during the production process, it may cause SF6 gas to escape during the production process. This is one of the reasons for the hazards of sulfur hexafluoride; secondly, in many power equipment SF6 gas needs to be filled, and many large edge switches also need SF6. If the equipment is replaced incorrectly or the equipment is not overhauled, it may cause SF6 gas leakage. The main hazard of the leaked sulfur hexafluoride lies in the greenhouse effect, which easily causes the destruction of the atmospheric ozone layer. Secondly, SF6 decomposition products are also the cause of the harm of sulfur hexafluoride. Although the pure SF6 gas is chemically stable and non-toxic, it may decompose hydrofluoric acid (HF) and toxic SOF2, SO2F2, SF4 and SOF4 under the action of high temperature and high pressure arc or when the moisture exceeds the standard. Valence sulfur fluoride. These toxic gases will not only corrode the equipment itself, once leaked, it will cause serious harm to the human body! Application of sulfur hexafluoride sulfur hexafluoride gas is a colorless, odorless, non-toxic and non-corrosive inert gas. Good chemical stability and good affinity. It is widely used in power, electronics, electrical industries and laser, medical, meteorological, refrigeration, fire protection, chemical, military, aerospace, non-ferrous metallurgy, physical research and other aspects. The above is the analysis of the toxicity and hazards of sulfur hexafluoride brought to you by Shuncheng Chemical. Shuncheng Chemical Research Institute is an early research and development unit of sulfur hexafluoride production process. It is committed to the research of fluorine-containing electronic gas and has obtained data. Ten technological research and innovation achievements, dozens of technological research and innovation achievements, won scientific conference awards, and editor-in-chief of industrial and electronic sulfur hexafluoride standards. If you have a need in this regard, you can contact us.
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