Description

Diisobutyldiethoxysilane is a versatile organosilicon compound widely used as a key intermediate and coupling agent in advanced material synthesis. Its bifunctional structure, featuring both hydrolyzable ethoxy groups and inert isobutyl groups, enables it to modify surfaces and act as a cross-linking precursor. This product is essential for manufacturers in the silicone polymer, coatings, and electronics industries seeking to enhance material properties like adhesion, hydrophobicity, and thermal stability. We supply high-purity grades to meet the stringent demands of global industrial and research applications.

Application

• Silicone Resin & Polymer Modification: Acts as a cross-linking agent and chain terminator in the synthesis of specialty silicones, improving flexibility and weather resistance.
• Surface Treatment & Coupling Agent: Used to treat inorganic fillers (e.g., silica, glass) and pigments to improve dispersion and compatibility in polymer matrices like epoxy and polyurethane.
• Hydrophobic Coatings: A key precursor for creating water-repellent and anti-corrosion coatings on metals, glass, and construction materials.
• Adhesion Promotion: Enhances the bond between organic polymers and inorganic substrates in sealants, adhesives, and composite materials.
• Electronics & Semiconductor Precursor: Employed in the deposition of silicon-containing thin films and as a passivation agent in microelectronics manufacturing.
• Rubber & Tire Industry: Functions as a coupling agent for silica-filled rubber compounds, reducing rolling resistance and improving fuel efficiency in tires.
• Pharmaceutical & Agro-chemical Intermediates: Serves as a building block in the synthesis of more complex organosilicon molecules for specialized applications.

Basic Information

Product Name	Diisobutyldiethoxysilane
CAS No.	18297-14-8
Molecular Formula	C12H28O2Si
Molecular Weight	232.44 g/mol
Synonyms	Diisobutyldiethoxysilane; Diethoxybis(2-methylpropyl)silane; Diethoxy(diisobutyl)silane; Diisobutyldiethoxysilicon; Bis(2-methylpropyl)diethoxysilane; Diethoxy-diisobutylsilane; Silane, diethoxybis(2-methylpropyl)-; Diisobutyl diethoxysilane
EINECS	Contact for details

Quality Control

Our Diisobutyldiethoxysilane is manufactured under strict quality management systems to ensure batch-to-batch consistency and high purity. Each lot undergoes rigorous analytical testing, including GC, NMR, and Karl Fischer titration, to confirm identity, potency, and impurity profiles. A comprehensive Certificate of Analysis (COA) detailing all test results is provided with every shipment. We are committed to meeting the quality standards required for industrial and research applications, with specifications adjustable to meet specific customer 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). This material is hygroscopic (moisture-sensitive) and light-sensitive; containers must be kept tightly sealed to prevent contact with atmospheric moisture and light exposure, which can lead to hydrolysis and degradation. Keep away from heat, sparks, and open flames.

Specification

Item	Specification
Appearance	Colorless to pale yellow clear liquid
Identification (IR)	Conforms
Assay (GC)	≥ 98.0%
Density (at 20°C)	0.85 - 0.87 g/mL
Refractive Index (n20D)	1.410 - 1.415
Water Content (KF)	≤ 0.1%

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