Description

Ethylmethyldichlorosilane is a versatile organosilicon compound primarily used as a key intermediate in the synthesis of silicone polymers and functional silanes. Its dichlorosilane structure makes it a valuable building block for introducing ethyl and methyl groups into siloxane chains, enabling precise control over material properties. This chemical is essential for manufacturers in the silicone industry, particularly for producing specialty fluids, resins, and surface-modifying agents.

Application

• Silicone Intermediate: A fundamental monomer for the production of modified polysiloxanes and silicone copolymers.
• Surface Treatment Agent: Used to synthesize coupling agents for improving adhesion between organic polymers and inorganic materials like glass or minerals.
• Hydrophobic Coatings: Serves as a precursor for creating water-repellent surface treatments on various substrates.
• Pharmaceutical & Agro-chemical Synthesis: Acts as a protecting group or intermediate in the synthesis of complex organic molecules.
• Rubber & Elastomer Additive: Imparts specific release or flow properties when incorporated into silicone rubber formulations.
• Research & Development: Employed in laboratories for developing new organosilicon compounds and materials science applications.

Basic Information

Product Name	Ethylmethyldichlorosilane
CAS No.	4525-44-4
Molecular Formula	C3H8Cl2Si
Molecular Weight	143.09 g/mol
Synonyms	Dichloro(ethyl)methylsilane; Ethylmethyldichlorosilane; Methyl(ethyl)dichlorosilane; Dichloromethyl(ethyl)silane; Ethylmethylsilyl dichloride; Silane, dichloroethylmethyl-; 1-Ethyl-1-methyldichlorosilane; Dichloroethylmethylsilane
EINECS	224-850-6

Quality Control

Our Ethylmethyldichlorosilane is produced under stringent quality management systems. Each batch undergoes comprehensive analytical testing, including Gas Chromatography (GC) for purity and identity confirmation, to ensure it meets exacting standards for industrial and research applications. A Certificate of Analysis (COA) detailing specific batch results is provided with every shipment to guarantee traceability and consistency.

Storage

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

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 98.0%
Density (at 20°C)	1.08 - 1.10 g/mL
Refractive Index (n20D)	1.425 - 1.430
Boiling Point	Approx. 115-118°C

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