n-Octyltriethoxysilane
| Chemical Name: | n-Octyltriethoxysilane |
| Alias: | Triethoxyoctylsilane |
| Product Category: | Alkylsilane – Silanes |
| Structural Formula: |  |
| CAS No.: | 2943-75-1 |
| EINECS: | 220-941-2 |
| Molecular Formula: | C14H32O3Si |
| Molecular Weight: | 276.4876 |
n-Octyltriethoxysilane Description
n-Octyltriethoxysilane (CAS 2943-75-1), also known as Triethoxyoctylsilane, is a colorless, oily solution mainly used as a defoaming agent in coatings. It is a monofunctional silane that modifies the surfaces of materials like glass, quartz sand, metal, and powder fillers, enhancing hydrophobic properties and improving compatibility with resins.
Besides coatings, n-Octyltriethoxysilane is widely used in the tire industry, footwear, and rubber products. It boosts water resistance and material performance, making it an essential additive for improving product quality in these sectors.
| Equivalent Chemical Name | dynasylanocteo; n-octyltriethoxysilane; Triethoxy-n-octylsilane; Octyltriethoxysilane; Triethoxyoctylsilane; U-222;CH3(CH2)7Si(OEt)3; (octyl)triethoxysilane; |
| Relative density | 0.879g/cm3 |
| Solubility | Reacts |
| Boiling Point | 98-99°C/2mm Hg |
| Flash Point | 109°C |
| Refractive Index (nD20) | 1.4160-1.4180 |
| Appearance | Colorless transparent liquid with low viscosity. |
| Dissolvability | Soluble in aromatic, aliphatic hydrocarbons, alcohols, mineral oil and other organic solvents. It is easy to be hydrolyzed under the affect of water. |
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n-Octyltriethoxysilane: Guide
n-Octyltriethoxysilane is a functional silane with an octyl group and a triethoxy group, similar to Silane Z-6341. It is used to create hydrophobic surfaces on materials like concrete, glass, pigments, and mineral fillers.
When diluted with the right solvent, it can be used in water-repellent products. It reacts with cement-based materials to provide water resistance while keeping the surface appearance intact.
This silane is ideal for improving water resistance in construction materials and enhancing the durability of treated surfaces.
