Description

Chloro(Dodecyl)Dimethylsilane is a versatile organosilicon compound, specifically a chlorosilane with a long alkyl chain. This chemical is a crucial intermediate for introducing hydrophobic and organophilic properties into various materials. It is primarily utilized by manufacturers in the silicone, polymer, and surface treatment industries to create water-repellent coatings, modify fillers, and synthesize specialty siloxanes.

Application

• Hydrophobic Surface Modifier: Used to treat silica, glass, and other mineral fillers to improve dispersion in organic polymers and enhance composite material properties.
• Silicone Intermediate: Serves as a key building block for the synthesis of specific functional siloxanes and silicone oils with long-chain alkyl groups.
• Water-Repellent Coatings: A precursor for formulating coatings that provide water and stain resistance to textiles, paper, and construction materials.
• Adhesion Promoter: Can be used to improve the adhesion of sealants and adhesives to various substrates.
• Lubricant Additive: Employed as an additive in lubricants and greases to modify surface friction and wear characteristics.
• Research & Development: Used in laboratories for organic synthesis and material science research to create novel organosilicon compounds.

Basic Information

Product Name	Chloro(Dodecyl)Dimethylsilane
CAS No.	66604-31-7
Molecular Formula	C₁₄H₃₁ClSi
Molecular Weight	262.94 g/mol
Synonyms	Dodecyldimethylchlorosilane; Dimethyldodecylchlorosilane; Chlorodimethyldodecylsilane; n-Dodecyldimethylchlorosilane; Dodecylchlorodimethylsilane; Dodecyldimethylsilyl chloride; (Chlorodimethylsilyl)dodecane
EINECS	266-380-6

Quality Control

Our Chloro(Dodecyl)Dimethylsilane is produced under strict quality management protocols. Each batch undergoes comprehensive analysis including assay, purity verification, and impurity profiling to ensure it meets the high standards required for industrial synthesis and R&D. A Certificate of Analysis (COA) detailing all specifications is provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). This product is hygroscopic (moisture-sensitive) and must be kept under an inert atmosphere (e.g., nitrogen or argon) after opening to prevent hydrolysis. Keep away from strong bases and oxidizing agents.

Specification

Item	Specification
Appearance	Colorless to pale yellow clear liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 97.0%
Density (at 20°C)	0.86 - 0.88 g/mL
Refractive Index (n20/D)	1.440 - 1.445

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