Description

n-Butylmethyldimethoxysilane is a versatile organosilicon compound, specifically a dialkoxysilane, valued for its role as a key coupling agent and surface modifier. Its bifunctional structure allows it to form stable bonds between inorganic substrates and organic polymers, enhancing material compatibility and performance. This chemical is essential for manufacturers in the silicone rubber, adhesive, sealant, and advanced composite materials industries seeking to improve product durability and adhesion.

Application

• As a crosslinking agent and chain extender in the production of silicone polymers and room-temperature vulcanizing (RTV) silicone rubbers.
• As a surface pretreatment agent for glass, minerals, and fillers to improve their dispersion and bonding within organic resin matrices like epoxies and polyurethanes.
• As a key intermediate in organic synthesis for the preparation of more complex functional silanes and silicone-based materials.
• In the formulation of moisture-curable adhesives and sealants, where it contributes to cure kinetics and final elastomeric properties.
• For the hydrophobic treatment of surfaces in construction and protective coating applications.
• In the manufacture of mold release agents and industrial coatings requiring specific surface energy characteristics.

Basic Information

Product Name	n-Butylmethyldimethoxysilane
CAS No.	18294-08-1
Molecular Formula	C7H18O2Si
Molecular Weight	162.30 g/mol
Synonyms	Butylmethyldimethoxysilane; Methyldimethoxybutylsilane; n-Butyl(methyl)dimethoxysilane; Dimethoxy(methyl)butylsilane; 1-Butylmethyldimethoxysilane; Butylmethyl dimethoxy silane; Silane, butylmethyldimethoxy-; (Butylmethylsilyl)dimethyl ether
EINECS	Contact for details

Quality Control

Our n-Butylmethyldimethoxysilane is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing, including gas chromatography (GC), to ensure high purity and consistency. Certificates of Analysis (COA) detailing specific batch results are available upon request to support your quality assurance and regulatory needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Due to its hygroscopic and highly volatile nature, containers must be kept tightly sealed after opening to prevent moisture absorption and evaporation. Keep away from heat, sparks, and open flame.

Specification

Item	Specification
Appearance	Colorless clear liquid
Identification (IR)	Conforms
Assay (GC)	≥ 98.0%
Refractive Index (n20D)	1.400 - 1.405
Density (20°C)	0.86 - 0.88 g/cm³
Water Content (KF)	≤ 0.1%

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