Description

Dichlorodibutoxysilane is a versatile organosilicon compound that serves as a key intermediate in the synthesis of advanced silicone polymers and functional materials. Its bifunctional chlorosilane and alkoxy structure makes it a valuable precursor for introducing butoxy groups and enabling cross-linking reactions in various industrial processes. This chemical is essential for manufacturers in the silicone resins, adhesives, and specialty coatings sectors seeking to enhance product performance and thermal stability.

Application

• Silicone Resin Precursor: A fundamental building block for the synthesis of heat-resistant and chemically inert silicone resins used in high-temperature coatings and electrical insulation.
• Surface Modification Agent: Used to functionalize inorganic surfaces like silica, glass, or metals, imparting hydrophobic properties and improving adhesion for composite materials.
• Cross-linking Agent: Employed in the production of room-temperature vulcanizing (RTV) silicones and sealants, where it contributes to the curing mechanism and final elastomer properties.
• Intermediate for Silane Coupling Agents: Serves as a key intermediate in manufacturing specialized silane coupling agents that improve the bond between organic polymers and inorganic fillers.
• Specialty Polymer Synthesis: Utilized in the controlled synthesis of polysiloxanes and block copolymers with specific alkoxy functionalities for advanced material applications.
• Water Repellent Formulations: A component in formulations for creating water-repellent treatments for textiles, construction materials, and stone.

Basic Information

Product Name	Dichlorodibutoxysilane
CAS No.	18395-82-9
Molecular Formula	C8H18Cl2O2Si
Molecular Weight	245.22 g/mol
Synonyms	Dibutoxydichlorosilane; Dichlorodibutyloxysilane; Butoxysilane dichloride; Silane, dichlorodibutoxy-; Dichlorosilane, dibutoxy-; Dibutyl Orthosilicate Dichloride (related); Silicon dichloride dibutoxide
EINECS	242-247-4

Quality Control

Our Dichlorodibutoxysilane is produced under stringent quality management systems to ensure batch-to-batch consistency and high purity. Each lot undergoes comprehensive analysis, including assay by GC or titration and impurity profiling, to meet exacting customer specifications. A Certificate of Analysis (COA) detailing all test results is provided with every shipment to support your quality assurance and regulatory compliance 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, the container must be kept tightly sealed under an inert atmosphere (e.g., nitrogen or argon) to prevent moisture absorption and decomposition. Keep away from heat, sparks, open flames, and incompatible materials such as strong bases, acids, and oxidizing agents.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms to reference spectrum
Assay (GC)	≥ 97.0%
Density (at 20°C)	1.05 - 1.10 g/mL
Refractive Index (n20D)	1.420 - 1.430
Chloride Content	28.5 - 29.5 %
Water Content (Karl Fischer)	≤ 0.1%

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