Description

Diphenyldiethoxysilane is a versatile organosilicon compound widely used as a key intermediate in the synthesis of advanced silicone polymers and as a surface-modifying agent. Its value lies in its ability to introduce phenyl and ethoxy functional groups, which impart unique properties like enhanced thermal stability, hydrophobicity, and improved adhesion to various substrates. This product is essential for manufacturers in the silicone resin, adhesive, and specialty coatings industries seeking to develop high-performance materials.

Application

• As a crucial monomer or intermediate in the synthesis of phenyl-containing silicone resins and elastomers.
• As a surface treatment agent to enhance the water repellency and compatibility of inorganic fillers like silica in composite materials.
• As an adhesion promoter in specialty sealants, adhesives, and coating formulations for improved bonding to diverse surfaces.
• In the production of sol-gel materials for optical, electronic, and protective coating applications.
• As a coupling agent in mineral-filled polymer composites to improve mechanical properties and dispersion.
• For the modification of glass or ceramic surfaces to create hydrophobic or release layers.
• In research and development for creating novel organosilicon compounds with tailored functionalities.

Basic Information

Product Name	Diphenyldiethoxysilane
CAS No.	2553-19-7
Molecular Formula	C16H20O2Si
Molecular Weight	272.42 g/mol
Synonyms	Diethoxydiphenylsilane; Diphenyl diethoxysilane; Silane, diethoxydiphenyl-; Diethoxy(diphenyl)silane; NSC 66184; Diphenylsilyl diethyl ether; (Diethoxysilyl)benzene; Diphenylethoxysilane
EINECS	219-852-7

Quality Control

Our Diphenyldiethoxysilane is produced under stringent quality management systems to ensure batch-to-batch consistency and high purity. Each lot undergoes comprehensive analytical testing, including assay and impurity profiling, to meet exacting customer requirements. A detailed Certificate of Analysis (COA) is provided with every shipment, documenting key parameters such as purity, identity, and specific gravity.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). This material is hygroscopic (moisture-sensitive); containers must be kept tightly sealed to prevent degradation from atmospheric moisture.

Specification

Item	Specification
Appearance	Colorless to pale yellow clear liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 98.0 %
Refractive Index (n20/D)	1.525 - 1.535
Specific Gravity (20/4°C)	1.020 - 1.050

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