Description

n-Decyltriethoxysilane is a long-chain alkyltrialkoxysilane coupling agent, a key organosilicon intermediate prized for its ability to impart hydrophobic and oleophilic properties to inorganic surfaces. This compound is essential for creating durable, water-repellent coatings and enhancing the compatibility between organic polymers and inorganic fillers. It is primarily utilized by manufacturers in the coatings, sealants, plastics, and advanced materials industries for surface modification and adhesion promotion.

Application

• As a hydrophobic agent and surface modifier for silica, glass, and mineral fillers.
• Coupling agent for improving the dispersion and adhesion of fillers in polyolefin and other polymer composites.
• Key intermediate in the synthesis of specialty silicone resins and modified silanes for construction sealants and coatings.
• Surface treatment agent for nanoparticles to enhance compatibility in nanocomposite materials.
• Waterproofing additive for concrete, stone, and other porous building materials.
• Primer or adhesion promoter for coatings on metallic or glass substrates.
• Used in the formulation of release coatings and mold-making materials.

Basic Information

Product Name	n-Decyltriethoxysilane
CAS No.	2943-73-9
Molecular Formula	C16H36O3Si
Molecular Weight	304.55 g/mol
Synonyms	Decyltriethoxysilane; Triethoxy(decyl)silane; n-Decyl-triethoxysilan; Decyl triethoxysilane; 1-Triethoxydecylsilane; Silane, decyltriethoxy-; Dynasylan® 9116; KH-3110
EINECS	220-941-2

Quality Control

Our n-Decyltriethoxysilane is produced under strict quality management protocols. Each batch undergoes rigorous analytical testing, including Gas Chromatography (GC) for purity and identity confirmation, to ensure it meets precise specifications. A Certificate of Analysis (COA) detailing all test results is provided with every shipment to guarantee traceability and batch-to-batch consistency for your formulation needs.

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). Due to its hygroscopic nature, containers must be kept tightly sealed to prevent moisture absorption, which can affect product performance.

Specification

Item	Specification
Appearance	Colorless to pale yellow clear liquid
Identification (IR)	Conforms
Assay (GC)	≥ 97.0%
Refractive Index (n20D)	1.420 - 1.425
Density (20°C)	0.87 - 0.89 g/cm³

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