|Physical and Chemical Properties||Colorless transparent fuming liquid. Has an unpleasant asphyxiating odor. |
melting point -70 ℃
boiling point 57.57 ℃
relative density 1.483
solubility with benzene, ether, chloroform, petroleum ether, carbon tetrachloride, stannic chloride, titanium tetrachloride, chlorine and sulfur dichloride are miscible in any proportion.
|Use||For the synthesis of organic Silicon Compounds, Inorganic silicon compounds and the preparation of pure silicon For the preparation of organosilicon compounds and smoke for war|
|Hazard Symbols||Xi - Irritant|
|Risk Codes||R14 - Reacts violently with water|
R36/37/38 - Irritating to eyes, respiratory system and skin.
|Safety Description||S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.|
|UN IDs||UN 1818|
|Downstream Products||Tetramethyl orthosilicate|
White carbon black
colorless transparent liquid. Irritating odor, easy to deliquescence. Melting Point -70 °c I Boiling Point 57.6 °c. Soluble in benzene, chloroform, petroleum ether and other most organic solvents.
ferrosilicon chloride method: first, Ferrosilicon is added into the chlorination furnace, and then heated to about 300 ° C. 5 m3/h chlorine gas was introduced into the reaction to produce silicon tetrachloride, and after condensation, crude silicon tetrachloride was obtained. Antimony powder (0.05% by weight based on the weight of silicon tetrachloride) was added to the crude silicon tetrachloride for distillation, and the mixture was refluxed for 30min, and then a fraction of 56 to 59 ° C. Was taken to obtain a commercial grade silicon tetrachloride product. High-purity silicon tetrachloride can be obtained by further rectification of technical grade silicon tetrachloride and reflux for a long time.
silicon tetrachloride is a by-product of the production of high-purity silicon. It is not only the main raw material for the production of optical fiber preform, but also the main raw material for inorganic silicon, silicone, rubber industry, used in electronics, aviation, precision casting and other fields.