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| | 1,1,3,3-Tetramethyl-1,3-divinyldisilazane Basic information |
| Product Name: | 1,1,3,3-Tetramethyl-1,3-divinyldisilazane | | Synonyms: | 1,1,3,3-TETRAMETHYL-1,3-DIVINYLDISILAZANE;1,3-DIVINYL-1,1,3,3-TETRAMETHYLDISILAZANE;1,3-DIVINYLTETRAMETHYLDISILAZANE;1,3-DIVINYLTETRAMETHYLDISILAZANE DVTMDS;1-ethenyl-N-(ethenyldimethylsilyl)-1,1-dimethyl-Silanamine;N-[Dimethyl(vinyl)silyl](dimethyl)vinylsilanamine;Silanamine, 1-ethenyl-N-(ethenyldimethylsilyl)-1,1-dimethyl-;ethenyl-[[ethenyl(dimethyl)silyl]-methylamino]-methylsilicon | | CAS: | 7691-02-3 | | MF: | C8H19NSi2 | | MW: | 185.41 | | EINECS: | 231-701-1 | | Product Categories: | Industrial/Fine Chemicals;monomer;Si (Classes of Silicon Compounds);Silazanes;Si-N Compounds;Vinylsilanes, Allylsilanes | | Mol File: | 7691-02-3.mol |  |
| | 1,1,3,3-Tetramethyl-1,3-divinyldisilazane Chemical Properties |
| Hazard Codes | C | | Risk Statements | 10-34-22 | | Safety Statements | 26-36/37/39-45-23 | | RIDADR | UN 2920 8/PG 2 | | WGK Germany | 3 | | RTECS | VV1302250 | | F | 10-21 | | TSCA | TSCA listed | | HazardClass | 8 | | PackingGroup | II | | HS Code | 29319090 |
| | 1,1,3,3-Tetramethyl-1,3-divinyldisilazane Usage And Synthesis |
| Chemical Properties | Clear liquid with ammonia odor | | Uses | 1,1,3,3-Tetramethyl-1,3-divinyldisilazane is used for silicone rubber, silicone resin, silicone gel and vinyl manufacturing. | | Application | 1,1,3,3-Tetramethyl-1,3-divinyldisilazane, a vinylsilazane, could cross-linked with polyhydromethylsiloxane in the presence of Karstedt's catalyst. When the reactions were carried out in solvent-free conditions, non-porous polysiloxane-silazane networks were obtained[1].
| | Flammability and Explosibility | Flammable | | Synthesis | Add 2 mol of dimethyl vinyl chlorsilane to the reactor, pass ammonia into it for the reaction, the amount of ammonia is controlled to be the molar ratio of dimethyl vinyl chlorsilane to ammonia 2:3.4, and 99% of the ammonia is passed in 2 hours, A, control the reaction pressure to be 5 kg of NH3 pressure, the reaction is carried out at 130C, and the reaction time is 6h, and at the end of the reaction, add dichloroethane to dissolve the Product; B, the above product will be added to the total amount of product mass of 0.05% of hydroquinone, tert-butyl catechol and copper naphthenate, at a temperature of 160-163 , 760 mmHg conditions for molecular distillation, to obtain colorless transparent liquid. The content of the product was 98.95% and the yield was 98%. The density of the tested product was 0.819g/cm3, ammonium chloride was 0, 1,1,3,3-tetramethyl-1,3-divinyl disilazane content was 0.1%. | | Toxics Screening Level | The initial threshold screening level (ITSL) for tetramethyldivinyldisilzane (CASRN 7691-02-3) is 30 μg/m3 based on an annual averaging time. | | References | [1] Justyna Olejarka . “Non-porous and porous materials prepared by cross-linking of polyhydromethylsiloxane with silazane compounds.” European Polymer Journal 99 (2018): Pages 150-164.
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| | 1,1,3,3-Tetramethyl-1,3-divinyldisilazane Preparation Products And Raw materials |
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