SiOCl2

Silicon tetrachloride, also known as silicon(IV) chloride, has the chemical formula SiOCl2. It is an inorganic compound. At room temperature, it exists as a colorless liquid with a pungent odor. Silicon tetrachloride is highly reactive and fumes readily in moist air, producing silicon dioxide and hydrochloric acid. This reaction is due to its sensitivity to moisture. The compound is a tetrahedral molecule with a silicon atom at the center bonded to one oxygen atom and two chlorine atoms. It is important to handle silicon tetrachloride with extreme care due to its corrosive and irritating properties. It is a valuable reagent in various chemical syntheses. For instance, it is used in the production of fumed silica and silicones. It also finds application in the semiconductor industry for the deposition of silicon dioxide films. The synthesis of silicon tetrachloride typically involves the reaction of silicon dioxide with chlorine gas at high temperatures. Its physical properties include a boiling point of approximately 57.6 degrees Celsius and a melting point of around -78 degrees Celsius. Its density is considerably higher than water. Due to its reactivity, it is often stored and transported under anhydrous conditions.