Description

T-Butyltrimethoxysilane is a versatile organosilicon compound widely used as a key intermediate and surface modifying agent. Its value lies in its ability to introduce the bulky tert-butyl group and reactive methoxysilane functionality into various materials, enhancing properties like hydrophobicity, adhesion, and chemical resistance. This chemical is essential for manufacturers in the silicone polymer, advanced coatings, and adhesive industries seeking to improve product performance and durability.

Application

• As a coupling agent and crosslinker in the synthesis of specialty silicone resins and polymers.
• As a surface treatment agent for inorganic fillers (e.g., silica, glass) to improve dispersion and compatibility in polymer matrices.
• For the hydrophobic modification of surfaces in construction materials, textiles, and protective coatings.
• As a key precursor or intermediate in pharmaceutical and agrochemical synthesis.
• In the formulation of adhesives and sealants to enhance weather resistance and bonding strength.
• For the silylation of organic compounds in organic synthesis and analytical chemistry.

Basic Information

Product Name	T-Butyltrimethoxysilane
CAS No.	18395-29-4
Molecular Formula	C7H18O3Si
Molecular Weight	178.30 g/mol
Synonyms	tert-Butyltrimethoxysilane; (tert-Butyl)trimethoxysilane; Trimethoxy(tert-butyl)silane; tert-Butyltrimethoxy silane; Silane, trimethoxy(1,1-dimethylethyl)-; 1,1-Dimethylethyltrimethoxysilane; t-Butyl trimethoxysilane; TBTS
EINECS	242-255-8

Quality Control

Our T-Butyltrimethoxysilane is produced under strict quality management systems. Each batch undergoes rigorous analytical testing, including GC and NMR analysis, to ensure high purity and consistency. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with every shipment to guarantee it meets your specific application requirements.

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 and highly volatile nature, the container must be kept tightly sealed under an inert atmosphere (e.g., nitrogen) after opening to prevent moisture absorption and degradation. Keep away from heat, sparks, and open flame.

Specification

Item	Specification
Appearance	Colorless to pale yellow clear liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 98.0%
Density (20°C)	0.88 - 0.92 g/mL
Refractive Index (n20D)	1.390 - 1.395

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