1-(Trimethoxysilyl)hexane
Hexyltrimethoxysilane
CAS: 3069-19-0
Molecular Formula: C9H22O3Si
1-(Trimethoxysilyl)hexane - Names and Identifiers
| Name | Hexyltrimethoxysilane |
| Synonyms | hexyltrimethoxy-silan Hexyltrimethoxysilane HEXYLTRIMETHOXYSILANE N-HEXYLTRIMETHOXYSILANE n-Hexyltrimethoxysilane Silane, hexyltrimethoxy- 1-(Trimethoxysilyl)hexane |
| CAS | 3069-19-0 |
| EINECS | 221-331-9 |
| InChI | InChI=1/C9H22O3Si/c1-5-6-7-8-9-13(10-2,11-3)12-4/h5-9H2,1-4H3 |
| InChIKey | CZWLNMOIEMTDJY-UHFFFAOYSA-N |
1-(Trimethoxysilyl)hexane - Physico-chemical Properties
| Molecular Formula | C9H22O3Si |
| Molar Mass | 206.35 |
| Density | 0,92 g/cm3 |
| Melting Point | <0°C |
| Boling Point | 202 °C |
| Flash Point | 62°C |
| Water Solubility | 284-600000mg/L at 20℃ |
| Solubility | Insoluble in water |
| Vapor Presure | 6.7hPa at 25℃ |
| Appearance | clear liquid |
| Specific Gravity | 0.911 |
| Color | Colorless to Almost colorless |
| BRN | 2347551 |
| Storage Condition | 2-8℃ |
| Sensitive | 7: reacts slowly with moisture/water |
| Refractive Index | 1.4070 |
| MDL | MFCD00039801 |
1-(Trimethoxysilyl)hexane - Risk and Safety
| Risk Codes | 36/38 - Irritating to eyes and skin. |
| Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S36/37/39 - Wear suitable protective clothing, gloves and eye/face protection. S26/37 - |
| UN IDs | 1993 |
| TSCA | Yes |
| HS Code | 29319090 |
1-(Trimethoxysilyl)hexane - Reference Information
| LogP | 0.1-3.2 at 20℃ |
| EPA chemical information | Information provided by: ofmpub.epa.gov (external link) |
| application | n-hexyltrimethoxysilane is transparent to rice yellow liquid with mild smell. N-hexyltrimethoxysilane is a typical silane coupling agent. One of the molecules contains hexane to make it exhibit excellent physical and chemical properties. It has a wide range of applications, such as: applied to nylon, PBT and other engineering plastics The mechanical strength of the modified plastic can be improved; the surface treatment of the silicon micropowder is used to reinforce the epoxy resin molding compound, epoxy resin mortar, epoxy resin mold, etc; it is used to replace mercaptosilane in polysulfide sealants for construction and glass, which has a good tackifying effect and avoids the uncomfortable odor when mercaptosilane is used; adding polyurethane and latex adhesives to significantly improve the adhesion, It does not change yellowing, does not affect the storage period of the product, and the use effect is better than aminosilane coupling agent. |
| Preparation | Using trimethoxysilane (TMSH) and hexene as raw materials, n-hexyl trimethoxysilane is synthesized through hydrosilylation reaction. Two promoters (nitrogen compounds and phosphorus compounds) are added to the chloroplatinic acid complex to adjust the selectivity and reaction speed of the addition reaction. The preparation reaction formula of n-hexyltrimethoxysilane is as follows: fig. 1 the preparation reaction formula of n-hexyltrimethoxysilane is 1. to dehydrate and dry each raw material with molecular sieve for 24 hours, weigh 69.2g(0.20 mol) hexene, 0.692g catalyst (platinum content of catalyst is 5000 ppm, mass ratio of Pt to olefin is 1:20000),29.8g(0.22 mol) trimethoxysilane, and the catalyst and reactant should be completely mixed evenly, and keep dry and isolated from water. The autoclave is dried and evacuated. Using negative pressure, the reaction material is sucked into the reaction kettle and sealed. Heat up to 120 ℃ and keep it for 2 hours. Heat will be released during the reaction, and the temperature difference will not exceed 20 ℃. After 2 hours, the temperature was increased to 140 ℃ and kept for 2 hours. After the reaction was reduced to room temperature, the material was discharged, rectified and purified, and the product was analyzed by gas phase analysis. Methods The main reagents and instruments were 2. with trimethoxysilane. Hexene; Chloroplatinic acid; Heat collection type constant temperature heating magnetic stirrer: DF-101S, gas chromatograph: GC-14D (Shanghai Precision Scientific Instrument Co., Ltd.), gas-mass spectrometer: HP -6890GC/5973MS(HP Company). |
Last Update：2024-04-10 22:29:15
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