Description

1,2-Bis(Methyldiethoxysilyl)Ethane CAS NO 88736-80-5 is a specialized organosilicon compound, specifically a bis-silylated ethane derivative, that serves as a versatile silane coupling agent and crosslinker. Its molecular structure, featuring two reactive ethoxysilyl groups, is critical for forming durable covalent bonds between inorganic substrates and organic polymers. This product is essential for manufacturers in the advanced materials sector seeking to enhance composite strength, adhesion, and moisture resistance. Key industries that rely on this chemical include silicone rubber, adhesives and sealants, and advanced resin systems.

Application

• Silicone Rubber Crosslinking: Acts as a reinforcing agent and crosslinker in high-performance silicone elastomers, improving tensile strength and thermal stability.
• Adhesive & Sealant Formulations: Enhances adhesion to difficult substrates like glass, metals, and minerals by promoting interfacial bonding.
• Filler Treatment: Used as a surface modifier for inorganic fillers (e.g., silica, glass fibers) to improve dispersion and compatibility within polymer matrices.
• Hybrid Material Synthesis: A key precursor in sol-gel processes for creating organic-inorganic hybrid coatings and materials with tailored properties.
• Moisture-Curing Systems: Functions as a moisture scavenger and crosslinking agent in one-component, room-temperature vulcanizing (RTV) systems.
• Composite Manufacturing: Improves the mechanical properties and environmental durability of fiber-reinforced plastics (FRP) and other composite materials.

Basic Information

Product Name	1,2-Bis(Methyldiethoxysilyl)Ethane
CAS No.	88736-80-5
Molecular Formula	C14H34O4Si2
Molecular Weight	322.60 g/mol
Synonyms	Ethane-1,2-diylbis(methyldiethoxysilane); 1,2-Bis(methyldiethoxysilyl)ethane; Bis(methyldiethoxysilyl)ethane; 1,2-Ethanediylbis(methyldiethoxysilane); MDESE; SIB1832.0 (common trade designation); Diethoxy(methyl)silylethyl-diethoxy(methyl)silane
EINECS	Contact for details

Quality Control

Our production of 1,2-Bis(Methyldiethoxysilyl)Ethane adheres to stringent quality management protocols to ensure batch-to-batch consistency and high purity. Each lot undergoes comprehensive analytical testing, including Gas Chromatography (GC) for assay and impurity profiling, and Karl Fischer titration for moisture content. A Certificate of Analysis (COA) detailing all specifications is provided with every shipment. We are committed to meeting the quality standards required for industrial and R&D applications.

Storage

Preserve in a tightly closed container, protected from light. This product is hygroscopic (moisture-sensitive) and must be stored under a dry, inert atmosphere (e.g., nitrogen or argon) to prevent hydrolysis and maintain reactivity. Recommended storage temperature is between 2°C and 25°C in a cool, dry, well-ventilated area away from incompatible materials.

Specification

Item	Specification
Appearance	Colorless to pale yellow clear liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 97.0%
Water Content (KF)	≤ 0.1%
Refractive Index (n20/D)	1.410 - 1.415
Density (20°C)	0.92 - 0.96 g/mL

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