Triethoxy(octyl)silane
Octyltriethoxysilane (CAS: 2943-75-1; Formula: CH3(CH2)7Si(OC2H5)3; Molar Mass: 276.49 g/mol) is a clear liquid organosilicon compound. It functions as a versatile surface modifier and coupling agent. Its primary applications involve enhancing adhesion between organic polymers and inorganic substrates, and it is utilized in materials science and chemical synthesis.
- IUPAC
- Octyltriethoxysilane
Surface Modification
Octyltriethoxysilane can be used to modify the surface properties of inorganic materials, rendering them more hydrophobic or compatible with organic matrices. This is crucial for applications in coatings and composite materials.
Adhesion Promotion
It acts as an effective adhesion promoter between dissimilar materials, such as glass fibres and polymer resins, improving the mechanical properties and durability of composite structures.
Chemical Synthesis Intermediate
As a trialkoxysilane, it serves as a building block in the synthesis of more complex organosilicon compounds and polymers, including siloxane resins and potentially POSS structures.
Materials Science Research
This compound finds use in materials science research for developing novel materials with tailored surface characteristics and improved interfacial properties.
| Molecular weight | 276.49120-125 °C |
|---|---|
| Linear formula | CH3(CH2)7Si(OC2H5)3 |
| Assay | ≥97.5% |
| Form | liquid |
| Boiling point | 84-85 °C/0.5 mmHg(lit.) |
| Density | 0.88 g/mL at 25 °C(lit.) |
| Refractive index | n20/D 1.417(lit.) |
Hazard statements
- H315Causes skin irritation
- H319Causes serious eye irritation
- H335May cause respiratory irritation
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P305IF IN EYES
| Protective equipment | Eyeshields, full-face respirator (US), Gloves, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter |
|---|---|
| Flash point | 100 °C / 212 °F |
| Water hazard class (WGK, DE) | 1 |
| Hazard codes (EU) | Xi |
| Risk statements (R) | 36/37/38 |
| Safety statements (S) | 26-36 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is Octyltriethoxysilane primarily used for?
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Octyltriethoxysilane is primarily used for surface modification, as an adhesion promoter between organic and inorganic materials, and as an intermediate in chemical synthesis.
What is the CAS number and chemical formula for Octyltriethoxysilane?
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The CAS number is 2943-75-1 and the chemical formula is CH3(CH2)7Si(OC2H5)3.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Octyltriethoxysilane with a purity of ≥97.5%. This is a technical/research grade product, and TSS does not represent it as USP, BP, or EP grade.
What are the primary safety concerns when handling Octyltriethoxysilane?
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Octyltriethoxysilane is a warning substance that causes skin irritation (H315), serious eye irritation (H319), and may cause respiratory irritation (H335). Always use appropriate personal protective equipment such as eyeshields and gloves, and ensure good ventilation.
How is this chemical packed, shipped, or exported?
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Tech Serve Solutions specialises in the global supply and export of fine chemicals, including Octyltriethoxysilane. Specific packaging and shipping details are provided upon inquiry.
How can I request a sample or quote for Octyltriethoxysilane?
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To request a sample or quote for Octyltriethoxysilane, please contact our sales team directly through the website or by phone.
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