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| | Chloromethyltrimethoxysilane Basic information |
| | Chloromethyltrimethoxysilane Chemical Properties |
| Boiling point | 151 °C (lit.) | | density | 1.132 g/mL at 25 °C (lit.) | | refractive index | 1.407 [25°C] | | Fp | 26 °F | | storage temp. | Storage temp. 2-8°C | | form | clear liquid | | color | Colorless to Almost colorless | | Specific Gravity | 1.125 | | Hydrolytic Sensitivity | 7: reacts slowly with moisture/water | | InChI | InChI=1S/C4H11ClO3Si/c1-6-9(4-5,7-2)8-3/h4H2,1-3H3 | | InChIKey | FPOSCXQHGOVVPD-UHFFFAOYSA-N | | SMILES | [Si](CCl)(OC)(OC)OC | | CAS DataBase Reference | 5926-26-1(CAS DataBase Reference) | | NIST Chemistry Reference | Silane, chloromethyl-trimethoxy-(5926-26-1) |
| Hazard Codes | F | | Risk Statements | 11 | | Safety Statements | 16-29-33 | | RIDADR | UN 1993 3/PG 2 | | WGK Germany | 3 | | RTECS | VV2625000 | | TSCA | No | | HazardClass | 3 | | PackingGroup | II | | HS Code | 29319090 | | Storage Class | 3 - Flammable liquids | | Hazard Classifications | Flam. Liq. 2 |
| | Chloromethyltrimethoxysilane Usage And Synthesis |
| Chemical Properties | Clear transparent liquid | | Uses | Chloromethyltrimethoxysilane may be used in the preparation of 1-methyl-1H-benzimidazole (MBI)-modified nanoparticles.{33} Mesoporous monolithic silica gels can also be prepared from Chloromethyltrimethoxysilane. {34} | | General Description | Chloromethyltrimethoxysilane (CMTMS) is a trialkoxysilane with chloromethyl as the organofunctional group having hydrophobic characteristics. Chloromethyl is the electron withdrawing group that improves the mechanical properties of the molecule. CMTMS is mainly utilized as a silane based precursor material for the preparation of surface enhancement based coatings and other silane based products. | | Synthesis | The general procedure for the synthesis of chloromethyltrimethoxysilane from chloromethyltrichlorosilane and trimethyl orthoformate was as follows: 570.2 g (3.1 mol) of chloromethyltrichlorosilane was slowly added dropwise to 1127.8 g (10.64 mol) of trimethyl orthoformate, and the dropwise acceleration was controlled so that the reaction mixture was kept at a slight boiling state. After the dropwise addition was completed, the reaction system was heated to 90°C and the reaction was maintained at this temperature for 5 hours. Upon completion of the reaction, the reaction mixture was purified by distillation, resulting in 449.8 g of the target product chloromethyltrimethoxysilane (Compound 2a). The structure of the product was confirmed by 1H NMR spectrum with the following chemical shifts δ (ppm): 2.77 (single peak, 2H, CH2), 3.58 (single peak, 9H, OCH3). | | References | [1] Russian Journal of General Chemistry, 2016, vol. 86, # 8, p. 1859 - 1863
[2] Zh. Obshch. Khim., 2016, vol. 86, # 8, p. 1321 - 1326,6 |
| | Chloromethyltrimethoxysilane Preparation Products And Raw materials |
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