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7783-61-1F[Si](F)(F)FABTOQLMXBSRXSM-UHFFFAOYSA-N7783-61-1DTXSID0064830Silicon tetrafluoride exhibits a very pungent odor. Silicon tetrachloride has a suffocating odor and is moisture sensitive.
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용도Manufacture of fluosilicic acid, intermediate in manufacture of pure silicon, to seal water out of oil wells during drilling.
일반 설명A colorless, nonflammable, corrosive and toxic gas with a pungent odor similar to that of hydrochloric acid. Very toxic by inhalation. Vapor is heavier than air. Under prolonged exposure to heat the containers may rupture violently and rocket.
Silicon tetrafluoride is prepared by heating silica with dilute hydrofluoric acid at high temperatures:SiO2 + 4HF → SiF4 + 2H2OAlso, the tetrafluoride may be obtained by heating the elements:Si + 2F2 → SiF4.
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