Description

1,1,3,3-Tetrachloro-1,3-Diphenyl Disiloxane is a versatile and reactive organosilicon intermediate, primarily valued for its role as a key building block in silicone chemistry. Its significance lies in its ability to introduce phenyl and chlorosilane functionalities, enabling the synthesis of specialized siloxane polymers and functional materials. This compound is essential for R&D chemists and manufacturers in the silicone, polymer, and advanced materials industries seeking to develop products with tailored thermal, mechanical, and surface properties.

Application

• Silicone Polymer Synthesis: Acts as a crucial monomer or chain modifier in the production of phenyl-containing siloxane copolymers, enhancing thermal stability and refractive index.
• Surface Modification Agent: Used to functionalize inorganic surfaces (e.g., silica, glass) with phenylsilane groups for improved hydrophobicity and compatibility with organic matrices.
• Crosslinking Agent: Serves as a reactive crosslinker in the formulation of heat-cured silicone resins and elastomers, contributing to network formation.
• Precursor for Silane Coupling Agents: A key starting material for synthesizing advanced phenylchlorosilane-based coupling agents used in composite materials.
• Laboratory Reagent: Employed in organic and organometallic research for the study of siloxane bond formation and reactivity.
• Specialty Chemical Intermediate: Utilized in the fine chemical and pharmaceutical industries for constructing complex organosilicon molecules.

Basic Information

Item	Detail
Product Name	1,1,3,3-Tetrachloro-1,3-Diphenyl Disiloxane
CAS No.	6838-45-5
Molecular Formula	C12H10Cl4OSi2
Molecular Weight	356.10 g/mol
Synonyms	Diphenyltetrachlorodisiloxane; 1,3-Diphenyl-1,1,3,3-tetrachlorodisiloxane; Tetrachlorodiphenyldisiloxane; Bis(phenyl)dichlorosiloxane; Phenyltrichlorosiloxane dimer; Dichlorophenylsiloxane; 1,1,3,3-Tetrachloro-1,3-diphenyldisiloxane; Silane, dichlorophenyl-, hydrolyzed
EINECS	229-921-9

Quality Control

Our 1,1,3,3-Tetrachloro-1,3-Diphenyl Disiloxane is produced under strict quality management systems. Each batch undergoes comprehensive analytical testing, including assay and impurity profile determination, to ensure it meets precise specifications for research and industrial synthesis. A Certificate of Analysis (COA) detailing purity, identity, and physical properties 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 at room temperature (15-25°C). This material is hygroscopic (moisture-sensitive) and reacts with strong acids and organic solvents; ensure the container is kept tightly sealed and stored separately from incompatible materials.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 97.0%
Chloride Content	Contact for details
Density (at 20°C)	~1.35 g/cm³

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