The main dangerous characteristics of chlorine, hydrogen, trichlorosilane and hydrogen chloride in the main dangerous and harmful substances in the production of polysilicon are:
1) Hydrogen: Mixing with air can form an explosive mixture that can explode if exposed to heat or an open flame. The gas is lighter than air. When used and stored indoors, the air leakage rises and the roof is not easy to be discharged. In case of Mars, it will cause an explosion. Hydrogen reacts violently with halogens such as fluorine, chlorine, and bromine.
2) Oxygen: One of the basic elements of combustion and explosion of combustion-supporting materials and combustibles, which can oxidize most active substances. Forms an explosive mixture with flammable materials such as acetylene, methane, and the like.
3) Chlorine: It has a pungent odor and can explode with many chemicals or generate explosive substances. It has a corrosive effect on almost all metals and non-metals. It is a highly toxic class. It is a strong irritating gas.
4) Hydrogen chloride: anhydrous hydrogen chloride is non-corrosive, but it is highly corrosive when exposed to water. It can react with some active metal powders to release hydrogen. Cyanide can produce highly toxic hydrogen cyanide gas.
5) Trichlorosilane: Strong combustion in case of open flame. Decomposed by high heat to produce toxic chloride gas. Reacts with oxidants and poses a risk of burning. It is extremely volatile and emits smoke in the air. It can generate heat and toxic corrosive fumes when exposed to water or water vapor. Combustion (decomposition) products: hydrogen chloride, silicon oxide.
6) Silicon tetrachloride: liberation of heat by heat or moisture, releasing toxic and corrosive fumes.
7) Hydrofluoric acid: very corrosive. In case of H foaming agent, it will burn immediately. It reacts with ordinary metals and releases hydrogen to form an explosive mixture with air.
8) Nitric acid: has strong oxidizing properties. Contact with flammable materials (such as benzene) and organic matter (such as sugar, cellulose, etc.) can cause violent reactions and even cause burning. It reacts violently with alkali metals. It is highly corrosive.
9) Nitrogen: If high heat is encountered, the internal pressure of the container increases. There is a danger of cracking and explosion.
10) Hydrogen fluoride: Very corrosive. In case of high heat, the internal pressure of the container increases, posing a risk of cracking and explosion.
11) Sodium hydroxide: This product is non-combustible, highly corrosive and irritating, and can cause burns to human body.
Window Blinds Parts,Window Blinds Parts Names,Window Blinds Parts Home Depot,Window Blinds Parts And Accessories
Plantation Shutter, Window Blinds Co., Ltd. , http://www.nbshutter.com