Speciality Chemicals

Octadecyltriethoxysilane

  • CAS No.7399-00-0
  • GradeIndustrial / Pharmaceutical
  • Availability● In Stock

High-purity Octadecyltriethoxysilane for advanced surface modification and chromatography. Ideal for hydrophobic treatments and polymer compatibility.

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Product Technical Details

Product Overview

Octadecyltriethoxysilane is a premier organosilicon compound widely recognized for its exceptional surface modification capabilities. As a long-chain alkyl alkoxysilane, this chemical serves as a critical functional agent in various industrial sectors, ranging from analytical chemistry to construction materials. Our manufacturing process ensures a high purity level of 95 percent, delivering consistent performance for demanding applications. The molecule features a reactive triethoxysilyl group that readily hydrolyzes to form stable siloxane bonds with inorganic substrates, while the octadecyl chain provides profound hydrophobicity and oleophobicity.

This specialized chemical is engineered to enhance the compatibility between inorganic fillers and organic polymer matrices. By modifying the surface energy of materials, it significantly improves dispersion stability and mechanical properties in composite formulations. Whether used in high-performance liquid chromatography or as a waterproofing agent, this product meets rigorous international quality standards.

Technical Specifications

ParameterSpecification
AppearanceColorless transparent liquid
Purity (Content)95 percent minimum
CAS Number7399-00-0
Molecular StructureAlkyl Alkoxysilane
Hazard ClassNon-dangerous goods

Industrial Applications

  • Chromatography Support Preparation: Primarily utilized as an ODS raw material for surface treatment to prepare silica gel for C-18 reversed-phase chromatography columns, ensuring high resolution and peak symmetry in analytical separations.
  • Polymer Compatibility Enhancement: Treats inorganic fillers to improve hydrophobicity and interfacial adhesion with polymers, especially polyolefins, resulting in superior composite material strength.
  • Surface Protection: Functions as an effective anti-fogging agent for glass surface treatment, preventing condensation and maintaining optical clarity in critical environments.
  • Construction Waterproofing: Applied as a waterproof treatment for the exterior of buildings, providing long-lasting protection against moisture ingress and environmental weathering.

Storage and Handling

To maintain optimal chemical stability, store this product in the original unopened container at temperatures of 25 degrees Celsius or below. Avoid exposure to direct sunlight and moisture, as premature hydrolysis may occur upon contact with water vapor. The shelf life of this product is one year from the date of production under recommended storage conditions. Expired products can only be used after passing rigorous quality control tests to ensure performance standards are met.

We offer flexible packaging solutions to meet diverse operational needs. Customized laboratory scales are available in 100ml, 250ml, 500ml, and 1000ml fluoride bottles. For large-scale industrial production, the standard packaging includes 25L plastic drums, 210L iron drums, or 1000L IBC containers. As a global manufacturer, we ensure safe logistics and timely delivery for all bulk orders.