Description

n-Decyltrimethoxysilane is a long-chain alkylalkoxysilane coupling agent widely used in surface modification and adhesion promotion. This compound is valued for its ability to impart hydrophobic properties and improve the compatibility between inorganic materials and organic polymers. It is essential for manufacturers in the coatings, sealants, plastics, and advanced materials industries seeking to enhance product performance and durability.

Application

• As a hydrophobic agent and coupling agent in mineral-filled composites and plastics.
• Surface treatment of glass fibers, silica, and other inorganic fillers to improve dispersion and bonding in polymer matrices.
• Key ingredient in the formulation of water-repellent coatings and sealants for construction materials.
• Modification of pigments and fillers to prevent agglomeration and enhance stability in liquid systems.
• Used as an adhesion promoter in primers and adhesive formulations for challenging substrates.
• Intermediate in the synthesis of more complex silane-based specialty chemicals.

Basic Information

Product Name	n-Decyltrimethoxysilane
CAS No.	5575-48-4
Molecular Formula	C₁₃H₃₀O₃Si
Molecular Weight	262.46 g/mol
Synonyms	Decyltrimethoxysilane; n-Decyltrimethoxy silane; Trimethoxy(decyl)silane; Decyltrimethoxysilane; 1-Decyltrimethoxysilane; Silane, decyltrimethoxy-; Dow Corning® Z-6172 (or equivalent trade names); 10-Trimethoxysilyldecane
EINECS	226-959-7

Quality Control

Our n-Decyltrimethoxysilane is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including gas chromatography (GC) for purity and identity confirmation, to ensure it meets precise specifications and consistent performance for industrial applications. A Certificate of Analysis (COA) detailing all relevant parameters is provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). This material is hygroscopic (moisture-sensitive); containers must be kept tightly sealed to prevent contact with atmospheric moisture.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 97.0%
Density (20°C)	0.88 - 0.90 g/cm³
Refractive Index (n20/D)	1.420 - 1.425

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