Description

n-Octylmethyldiethoxysilane is a versatile organosilicon compound, specifically a dialkoxysilane, widely used as a key coupling agent and surface modifier. Its value lies in its ability to form stable bonds between inorganic substrates and organic polymers, enhancing material compatibility and performance. This product is essential for manufacturers in the adhesives, sealants, coatings, and specialty plastics industries seeking to improve adhesion, hydrophobicity, and mechanical properties.

Application

• Coupling Agent for Mineral-Filled Composites: Enhances the dispersion and interfacial adhesion of fillers (e.g., silica, clay) in rubber and plastic matrices, improving mechanical strength and reducing viscosity.
• Surface Treatment for Inorganic Materials: Imparts water repellency (hydrophobicity) and improves compatibility with organic resins when treating glass fibers, metals, or minerals.
• Intermediate for Silicone Synthesis: Serves as a building block in the production of modified silicone oils, resins, and other specialty organosilicon materials.
• Adhesive and Sealant Formulations: Used to promote adhesion and moisture resistance in high-performance silicone, polyurethane, and MS polymer sealants.
• Waterproofing Agent: Applied in construction materials and coatings to create moisture-resistant barriers.
• Crosslinking Agent: Functions as a crosslinker in polymer systems to enhance thermal stability and chemical resistance.

Basic Information

Product Name	n-Octylmethyldiethoxysilane
CAS No.	2652-38-2
Molecular Formula	C₁₃H₃₀O₂Si
Molecular Weight	246.46 g/mol
Synonyms	Methyloctyl diethoxysilane; Diethoxy(methyl)octylsilane; Octylmethyldiethoxysilane; n-Octyl(methyl)diethoxysilane; (Diethoxy)(methyl)octylsilane; Silane, diethoxymethyloctyl-; 1-(Diethoxymethylsilyl)octane; CAS 2652-38-2
EINECS	220-194-8

Quality Control

Our n-Octylmethyldiethoxysilane is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including Gas Chromatography (GC) and FTIR, to ensure high purity and consistent performance. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and key physical properties is provided with every shipment to guarantee it meets your specific application 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). This material is hygroscopic (moisture-sensitive); containers must be kept tightly sealed to prevent degradation from atmospheric moisture. Keep away from heat, sparks, and open flame.

Specification

Item	Specification
Appearance	Colorless to pale yellow clear liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 97.0%
Refractive Index (n20/D)	1.418 - 1.422
Density (20°C)	0.86 - 0.88 g/mL
Water Content (KF)	≤ 0.1%

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