Triethoxyoctylsilane CAS 2943-75-1
Triethoxyoctylsilane CAS 2943-75-1 With Good Service
- Appearance:Liquid
- Purity:99.8%
- Delivery:30days
- Sample Available:Available
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Name: Triethoxyoctylsilane
CAS: 2943-75-1
MOQ: 1KG
Directory Guidance on Triethoxyoctylsilane
Chemical Structure
Basic Info:
| Melting point | <-40°C |
| Boiling point | 84-85 °C0.5 mm Hg(lit.) |
| density | 0.88 g/mL at 25 °C(lit.) |
| vapor pressure | 0.1 hPa (20 °C) |
| refractive index | n20/D 1.417(lit.) |
| Fp | 210 °F |
| storage temp. | Store below +30°C. |
Product Introduction:
Triethoxyoctylsilane is an organosilicon compound with a unique bifunctional structure. Its molecular formula is C14H32O3Si, its molecular weight is 276.49, and its CAS number is 2943-75-1. From a chemical structural point of view, the molecule is composed of a long chain of octyl (C8H17) and a triethoxysilane group (Si(OC2H5)3) connected by a silicon-carbon bond.
As an important branch of functional silane coupling agents, the physical properties of triethoxyoctylsilane include liquid form, Its synthesis is usually made of n-octene or n-octyltrichlorosilane as raw materials, and is obtained through catalytic addition or alcoholysis reaction. The production process needs to strictly control the free chlorine content (for example, the standard T/FSI 150-2024 stipulates that its free chlorine detection method is based on potentiometric titration).
In the industrial field, Triethoxyoctylsilane has become a key auxiliary agent in many industries such as construction, chemical industry, and electronics due to its high purity (typical product purity ≥97%) and chemical stability. For example, its hydrophobic property comes from the fact that after the silanol generated by the hydrolysis of ethoxy groups is bonded to the substrate, the octyl chains are oriented to form a low surface energy surface with a contact angle of more than 150°, thereby achieving a waterproof and antifouling effect. In addition, its ability to optimize compatibility with inorganic fillers further expands its application potential in composite materials.
Globally, the main suppliers of triethoxyoctylsilane include Dow Corning (Z-6341) in the United States, Evonik (OCTEO) in Germany, Shin-Etsu (KME-3083) in Japan, and Hubei New Blue Sky (BOSIL-294) in China. Although products of different brands differ slightly in packaging specifications (such as 1L sealed cans or ton barrels) and minor performance indicators, their core functions are highly consistent, demonstrating their mature position in standardized production and wide application.
Nature and Specifications:
| Item | Specification |
| Product Name | Triethoxyoctylsilane |
| CAS No. | 2943-75-1 |
| Appearance | Liquid |
| Shelf Life | 2 years |
| Packing | As your requirements |
| form | liquid |
| color | Colorless to Almost colorless |
| Specific Gravity | 0.875 |
| Water Solubility | reacts |
| Sensitive | Moisture Sensitive |
Product service:
- Certificate Of Analysis (COA)
- Material Safety Data Sheet (MSDS)
- Route of synthesis (ROS)
- Method of Aanlysis (MOA)
- Nuclear Magnetic Resonance (NMR)
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- Factory audit
Triethoxyoctylsilane has proven itself as an efficient silane coupling agent across a range of applications and industries, demonstrating its unique value and function. Construction industry uses waterproofing agents as waterproofing and protective agents that effectively prevent moisture penetration and acid-base erosion while prolonging service life for buildings. When applied to concrete surfaces, this chemical treatment can penetrate deep into the material, react chemically with its substrate and form a hydrophobic layer that prevents moisture penetration as well as harmful substances from penetrating into it. Furthermore, it can be used as surface treatment on building materials like stones, bricks and tiles to increase weathering resistance and weatherproofing properties of their material surfaces.
Triethoxyoctylsilane is used as a fabric finishing agent in the textile industry to give cotton, linen, wool and blended fabrics an appealing hand feel and hydrophobic properties. Treated fabric not only has fuller and smoother weave structures but also stronger waterproof properties which prevent moisture absorption/penetrating the fabric surface and increase performance/comfort levels; additionally it can also be utilized for fiber surface modification purposes to strengthen bonding forces between fibers and matrix materials as well as overall composite material performance improvements.
Triethoxyoctylsilane can be utilized in electronics and electrical fields for surface treatment of electronic components and the formulation of packaging materials, improving insulation and moisture resistance of electronic components, as well as avoiding short circuits caused by moisture intrusion, short circuiting or corrosion problems caused by damp conditions. Furthermore, this material can also be utilized to produce high performance insulating coatings and sealing materials to guarantee reliable operation of electronic equipment under extreme conditions.
Triethoxyoctylsilane can significantly enhance dispersibility and compatibility of inorganic pigments and fillers when added to organic materials, improving both dispersion and compatibility. By coating pigment particles with organosilane molecules, dispersion becomes simpler in plastics, rubbers, coatings or other systems resulting in enhanced mechanical properties, processing properties and quality in final products.
Triethoxyoctylsilane is an effective protective agent that can safeguard cultural relics against corrosion, freeze-thaw cycles and weathering damage, as well as form protective films on outdoor cultural relics to shield from external environmental factors that erode materials within them and extend preservation time without altering appearance or physical properties. Furthermore, this treatment won’t alter physical properties such as appearance and physical properties of cultural relics either reversibly or for subsequent repair/protection works.
Triethoxyoctylsilane stands out among similar products for several key advantages. First, its hydrophobic properties are excellent due to the long-chain alkyl group present in its molecular structure–in this case the octyl group–which has powerful water repelling abilities due to its hydrophobicity.
Triethoxyoctylsilane also boasts excellent wetting and dispersibility properties, making it suitable for coatings, inks, adhesives and other systems that utilize organic media such as coatings. Due to this feature, triethoxyoctylsilane’s wetting/dispersibility capabilities help enhance material processing performance as well as the final product quality; in the case of coatings for instance it helps prevent pigment agglomeration while simultaneously improving hiding power/adhesion/adhesion qualities of coatings/ink/etc.
Triethoxyoctylsilane boasts exceptional chemical reactivity. It bonds quickly to materials with hydroxyl groups on their surfaces to form stable three-dimensional network structures, giving triethoxyoctylsilane an edge when applied as surface modification material; for instance, when treating inorganic fillers such as filler pellets it can enhance bonding forces between filler particles and polymer matrixes as well as improving mechanical properties of composite materials.
Triethoxyoctylsilane’s environmental performance is also admirable. The byproduct of its hydrolysis reaction, ethanol, is nontoxic and poses no threat to either humans or the environment; in comparison with some other silane coupling agents that release toxic substances such as methanol during hydrolysis that could pose threats to both. Triethoxyoctylsilane thus offers significant competitive advantage when applied in applications with stringent environmental requirements.
Triethoxyoctylsilane stands out as an ideal candidate due to its long service life and reliability in practical applications, boasting exceptional stability and durability during its application. It can perform under various temperatures and humidities with no adverse side reactions from hydrolysis or polymerization occurring. As a result, Triethoxyoctylsilane boasts less cost in maintenance needs over its lifespan, as well as extended service life and greater performance throughout practical applications reducing usage costs and maintenance frequency costs.
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Related References:
chemicalbook-Triethoxyoctylsilane
Pubchem-Triethoxyoctylsilane
Triethoxyoctylsilane Manufacturer
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