Description

Dichlorodidodecylsilane is a high-purity organosilicon compound, specifically a dialkyldichlorosilane, serving as a critical intermediate in advanced material synthesis. Its value lies in its ability to introduce long-chain dodecyl groups and reactive chlorosilane functionalities into target molecules, enabling precise surface modification and polymer cross-linking. This product is essential for R&D and production teams in the specialty chemicals, advanced materials, and electronics sectors seeking to develop hydrophobic coatings, silicone-based polymers, and tailored silane coupling agents.

Application

• Surface Modification Agent: Imparts durable hydrophobicity and oleophobicity to glass, silica, and metal oxide surfaces.
• Polymer Synthesis Intermediate: Serves as a monomer or cross-linker for synthesizing specialty polysiloxanes and silicone resins with long alkyl side chains.
• Silane Coupling Agent Precursor: Used to synthesize custom silane coupling agents for enhancing adhesion between organic polymers and inorganic substrates in composites.
• Nanomaterial Functionalization: Modifies nanoparticles (e.g., SiO2, TiO2) to improve dispersion in non-polar organic matrices.
• Hydrophobic Coating Formulations: A key raw material in creating water-repellent coatings for textiles, construction materials, and electronic components.
• Laboratory Reagent: Employed in organic and organometallic synthesis for introducing silyl protecting groups or constructing complex molecular architectures.

Basic Information

Product Name	Dichlorodidodecylsilane
CAS No.	18768-06-4
Molecular Formula	C24H50Cl2Si
Molecular Weight	437.65 g/mol
Synonyms	Didodecyldichlorosilane; Dodecyldichlorosilane (ambiguous, but common); Dichlorodi-n-dodecylsilane; Dichlorobis(dodecyl)silane; Silane, dichlorodidodecyl-; Di-n-dodecyldichlorosilane; Dichloro(didodecyl)silane; Bis(dodecyl)dichlorosilane
EINECS	242-546-1

Quality Control

Our Dichlorodidodecylsilane is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including GC, NMR, and titration methods, to ensure high chemical purity and consistency. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with every shipment to support your quality assurance protocols.

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 under an inert atmosphere (e.g., nitrogen or argon) after opening 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	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 97.0%
Chloride Content (Titration)	15.8 - 16.4 %
Density (at 20°C)	0.88 - 0.92 g/mL
Refractive Index (n20D)	1.458 - 1.462

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