Description

Triacetoxy-tert-Butoxysilane is a specialized organosilicon compound that serves as a versatile coupling agent and surface modifier. Its unique molecular structure, featuring both acetoxy and tert-butoxy functional groups, provides excellent reactivity and compatibility with a wide range of inorganic and organic materials. This chemical is essential for manufacturers in the adhesives, sealants, coatings, and advanced composite materials industries seeking to enhance product performance and durability.

Application

• Crosslinking Agent: Used in silicone-based sealants and adhesives to promote moisture-curing and improve mechanical properties.
• Surface Priming: Acts as an adhesion promoter for coatings on difficult substrates like glass, metals, and certain plastics.
• Filler Treatment: Modifies the surface of mineral fillers (e.g., silica, calcium carbonate) in composites to improve dispersion and interfacial bonding with polymer matrices.
• Intermediate for Silicone Synthesis: Serves as a key precursor in the production of modified silicone oils and resins.
• Water Repellency: Imparts hydrophobic characteristics to construction materials like concrete and stone.
• Fiber Sizing: Used in the treatment of glass or carbon fibers to enhance compatibility with resin systems in reinforced plastics.

Basic Information

Product Name	Triacetoxy-tert-Butoxysilane
CAS No.	13170-22-4
Molecular Formula	C10H20O6Si
Molecular Weight	264.35 g/mol
Synonyms	tert-Butoxytriacetoxysilane; Silane, triacetoxy(1,1-dimethylethoxy)-; (1,1-Dimethylethoxy)triacetoxysilane; Triacetoxy(tert-butoxy)silane; tert-Butyltriacetoxysilane; Acetic acid (1,1-dimethylethoxy)silyl ester; Triacetoxy-tert-butyloxysilane; TBAS
EINECS	236-117-3

Quality Control

Our Triacetoxy-tert-Butoxysilane is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing to ensure it meets precise chemical and physical specifications. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with every shipment to guarantee consistency and support your quality assurance protocols.

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 product is hygroscopic (moisture-sensitive). Keep the container tightly sealed under a dry inert atmosphere (e.g., nitrogen or argon) to prevent degradation from atmospheric moisture.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 97.0%
Density (at 20°C)	1.10 - 1.15 g/cm³
Refractive Index (n20D)	1.405 - 1.415

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