Description

Tetrakis(1-Methylpropyl) Orthosilicate is a high-purity organosilicon compound, specifically a branched alkyl orthosilicate ester. This chemical serves as a versatile intermediate and precursor in advanced material synthesis, valued for its reactivity and ability to introduce silicon-based functional groups. It is primarily utilized by manufacturers in the silicone polymer, specialty coatings, and electronics industries for applications requiring controlled hydrolysis and cross-linking.

Application

• Silicone Resin & Polymer Modification: Acts as a cross-linking agent or co-monomer to enhance thermal stability and mechanical properties.
• Surface Treatment & Coatings: Used as a coupling agent or precursor for hydrophobic, anti-corrosive, and adhesion-promoting surface layers.
• Electronic Encapsulants & Sealants: A key intermediate in formulating silicones for potting, sealing, and protecting sensitive electronic components.
• Catalyst & Reagent Synthesis: Serves as a starting material for synthesizing specialized catalysts and other organosilicon reagents.
• Sol-Gel Processes: Employed in the production of high-purity silica glasses, ceramics, and hybrid organic-inorganic materials via controlled hydrolysis.

Basic Information

Product Name	Tetrakis(1-Methylpropyl) Orthosilicate
CAS No.	5089-76-9
Molecular Formula	C16H36O4Si
Molecular Weight	320.55 g/mol
Synonyms	Silicon(IV) butoxide (branched); Tetra(sec-butyl) orthosilicate; sec-Butyl silicate; Tetra-sec-butyl silicate; Orthosilicic acid tetra(1-methylpropyl) ester; Tetra(1-methylpropyl) silicate; Butyl silicate (branched); TSBO
EINECS	225-791-8

Quality Control

Our Tetrakis(1-Methylpropyl) Orthosilicate is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including assay, identity confirmation, and impurity profiling, to ensure it meets precise customer and industry specifications. A Certificate of Analysis (COA) documenting purity, physical properties, and test results is provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). This material is hygroscopic (moisture-sensitive); containers must be kept tightly sealed to prevent degradation from atmospheric moisture. Keep away from heat and incompatible materials such as strong acids and bases.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 97.0%
Density (20°C)	0.90 - 0.95 g/mL
Refractive Index (n20D)	1.390 - 1.410
Water Content (KF)	≤ 0.5%

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