Description

Tetraoctadecyloxysilane is a high-purity organosilicon compound, specifically a tetra-substituted alkoxysilane. This chemical is valued for its ability to impart hydrophobic and oleophobic properties to surfaces, serving as a versatile building block for advanced materials. It is primarily utilized by manufacturers in the coatings, plastics, and specialty chemical industries seeking to modify surface energy and enhance performance characteristics.

Application

• Surface Modification Agent: Used to create hydrophobic and oleophobic coatings on glass, metals, and ceramics.
• Polymer Additive: Acts as a compatibilizer and processing aid in polyolefins and other polymers to improve surface slip and release properties.
• Silicone Intermediate: Serves as a key precursor in the synthesis of specialized silicone resins and fluids with long alkyl chains.
• Nanomaterial Functionalization: Employed to graft organic chains onto silica nanoparticles and other inorganic substrates for composite material applications.
• Lubricant Formulation: Used as an additive in high-performance lubricants and greases to reduce friction and wear.
• Adhesive & Sealant Component: Incorporated to enhance water repellency and durability in construction and industrial sealants.

Basic Information

Product Name	Tetraoctadecyloxysilane
CAS No.	18816-28-9
Molecular Formula	C72H148O4Si
Molecular Weight	1082.0 g/mol
Synonyms	Tetraoctadecyl orthosilicate; Silicic acid tetraoctadecyl ester; Tetra-n-octadecyl orthosilicate; Tetra(octadecyloxy)silane; Octadecyl silicate (4:1); Tetraoctadecyl silicate; Tetraoctadecyloxysilane; Tetraoctadecyl silicate ester
EINECS	Contact for details

Quality Control

Our Tetraoctadecyloxysilane is produced under strict quality management protocols. Each batch undergoes comprehensive analytical testing, including assay by GC or HPLC and identity confirmation by FT-IR, to ensure it meets stringent purity and consistency standards. A Certificate of Analysis (COA) detailing all specifications is provided with every shipment to guarantee traceability and compliance with your technical requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Keep away from strong acids, bases, and oxidizing agents. This material is moisture-sensitive; ensure containers are sealed after use to prevent degradation.

Specification

Item	Specification
Appearance	White to off-white waxy solid
Identification (IR)	Conforms to structure
Assay (GC/HPLC)	≥ 95.0%
Melting Point	40 - 50 °C

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.