Description

Di-n-Butyldichlorosilane is a versatile organosilicon compound primarily used as a key intermediate in the synthesis of silicone polymers and specialty organosilicon materials. Its value lies in its dichlorosilane functionality, which readily reacts to form siloxane bonds, making it essential for creating tailored silicone properties. This chemical is particularly needed by manufacturers in the silicone industry, pharmaceutical intermediates, and advanced material science for applications requiring hydrophobic or specific surface-modifying agents.

Application

• Silicone Polymer Synthesis: A fundamental building block for the production of specific silicone oils, resins, and elastomers.
• Surface Modification Agent: Used to impart hydrophobic properties to glass, silica, and other inorganic surfaces.
• Pharmaceutical Intermediates: Serves as a precursor in the synthesis of certain active pharmaceutical ingredients (APIs) and drug delivery systems.
• Adhesion Promoters: Incorporated into silane coupling agents to improve bonding between organic polymers and inorganic substrates.
• Specialty Chemical Synthesis: Intermediate for creating custom organosilicon compounds with butyl functional groups for research and development.
• Water Repellents: A key component in formulations for creating water-resistant coatings for textiles, construction materials, and electronics.

Basic Information

Product Name	Di-n-Butyldichlorosilane
CAS No.	3449-28-3
Molecular Formula	C8H18Cl2Si
Molecular Weight	213.22 g/mol
Synonyms	Dichlorodi-n-butylsilane; Dibutyldichlorosilane; n-Butyldichlorosilane; Di-n-butylsilylene dichloride; Butyldichlorosilane; Silane, dichlorodibutyl-; Dichlorodibutylsilane; 1,1-Dichloro-1-siladodecane
EINECS	222-400-4

Quality Control

Our Di-n-Butyldichlorosilane is produced under stringent quality management systems. Each batch undergoes rigorous analytical testing, including Gas Chromatography (GC) and FT-IR spectroscopy, to ensure high purity and consistency. Certificates of Analysis (COA) detailing purity, identity, and impurity profiles are provided with every shipment to guarantee compliance with your technical requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area away from heat and incompatible materials such as strong bases, alcohols, and oxidizing agents. Due to its hygroscopic and moisture-sensitive nature, containers must be kept tightly sealed under an inert atmosphere (e.g., nitrogen or argon) to prevent hydrolysis. Recommended storage temperature is 2-8°C for long-term stability.

Specification

Item	Specification
Appearance	Colorless to pale yellow clear liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 98.0%
Density at 20°C	1.00 - 1.05 g/cm³
Refractive Index (n20D)	1.440 - 1.450
Water Content (Karl Fischer)	≤ 0.1%

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