Description

p-Tolyltrimethoxysilane is a versatile organosilicon compound, specifically a silane coupling agent, that serves as a critical building block in advanced material synthesis. Its core value lies in its ability to act as a surface modifier and adhesion promoter, creating strong bonds between organic polymers and inorganic substrates. This product is essential for manufacturers in the silicone resins, specialty coatings, and composite materials industries seeking to enhance material performance and durability.

Application

• As a key coupling agent in the production of silicone resins and elastomers.
• Surface treatment of glass fibers and mineral fillers to improve their compatibility and dispersion in polymer matrices.
• Formulation of adhesion-promoting primers for coatings, sealants, and adhesives on difficult-to-bond surfaces.
• Intermediate in the synthesis of more complex functional organosilanes for specialized applications.
• Modification of inorganic nanoparticles to prevent agglomeration and enable their use in nanocomposites.
• Crosslinking agent in moisture-curing RTV (Room Temperature Vulcanizing) silicone systems.

Basic Information

Product Name	p-Tolyltrimethoxysilane
CAS No.	17873-01-7
Molecular Formula	C10H16O3Si
Molecular Weight	212.32 g/mol
Synonyms	(4-Methylphenyl)trimethoxysilane; p-Tolyltrimethoxysilane; 4-Methylphenyltrimethoxysilane; Trimethoxy(4-methylphenyl)silane; 1-Methyl-4-(trimethoxysilyl)benzene; Silane, trimethoxy(4-methylphenyl)-; p-Tolyl-trimethoxysilane
EINECS	241-822-7

Quality Control

Our p-Tolyltrimethoxysilane is manufactured under strict quality management protocols. Each batch undergoes rigorous analytical testing, including GC (Gas Chromatography) and NMR (Nuclear Magnetic Resonance) analysis, to ensure high purity and consistent performance. We provide comprehensive Certificates of Analysis (COA) with every shipment, detailing key specifications such as assay and impurity profiles to support your quality assurance 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). This material is hygroscopic (moisture-sensitive); containers must be kept tightly sealed to prevent contact with atmospheric moisture, which can lead to hydrolysis. Keep away from strong alkalis and incompatible materials.

Specification

Item	Specification
Appearance	Colorless to pale yellow clear liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 97.0%
Density (at 20°C)	~1.02 g/cm³
Refractive Index (n20D)	~1.480

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