Description

Phenyltris(Trimethylsiloxy)Silane is a versatile organosilicon compound, specifically a silane coupling agent, known for its unique chemical structure that combines phenyl and trimethylsiloxy functionalities. This compound is essential for modifying material surfaces and interfaces, providing enhanced adhesion, hydrophobicity, and compatibility between organic polymers and inorganic substrates. It is a critical raw material for manufacturers in the silicone rubber, advanced coatings, and specialty adhesives industries seeking to improve product performance and durability.

Application

• As a key cross-linking agent and surface modifier in the production of high-performance silicone elastomers and RTV (Room Temperature Vulcanizing) silicone rubbers.
• Used as a coupling agent in composite materials to improve the bond between inorganic fillers (like silica) and organic polymer matrices.
• Employed in the formulation of water-repellent and release coatings for textiles, paper, and construction materials.
• Serves as a precursor or intermediate in the synthesis of more complex organosilicon compounds and specialty silicones.
• Applied in electronic encapsulants and potting compounds to enhance moisture resistance and electrical insulation properties.
• Utilized in adhesive and sealant formulations to improve adhesion to difficult substrates and environmental stability.

Basic Information

Product Name	Phenyltris(Trimethylsiloxy)Silane
CAS No.	2116-84-9
Molecular Formula	C15H32O3Si4
Molecular Weight	372.75 g/mol
Synonyms	Phenyltris(trimethylsiloxy)silane; Silane, phenyltris(trimethylsiloxy)-; Tris(trimethylsiloxy)phenylsilane; Phenyl tris(trimethylsiloxy)silane; Phenyltris(trimethylsilyloxy)silane; 2116-84-9; NSC 163083; Phenylsilanol trimethylsilyl ether; Tris-O-(trimethylsilyl)phenylsilanol
EINECS	218-317-5

Quality Control

Our Phenyltris(Trimethylsiloxy)Silane is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including assay by GC or HPLC and identity confirmation by FT-IR, to ensure it meets precise chemical and physical specifications. A Certificate of Analysis (COA) detailing purity, moisture content, and other critical parameters is provided with every shipment to guarantee consistency and reliability for your industrial processes.

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). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed under a dry inert atmosphere (e.g., nitrogen or argon) after opening to prevent degradation by atmospheric moisture.

Specification

Item	Specification
Appearance	Colorless to pale yellow clear liquid
Identification (IR)	Conforms to reference spectrum
Assay (GC)	≥ 97.0%
Water Content (Karl Fischer)	≤ 0.1%
Refractive Index (n20D)	1.430 - 1.440
Density (20°C)	0.92 - 0.96 g/cm³

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