Description

Bis(3-Triethoxysilylpropyl)Carbonate is a specialized organosilane coupling agent that plays a critical role in enhancing the adhesion and compatibility between inorganic materials and organic polymers. Its value lies in its unique carbonate-bridged structure, which offers distinct reactivity and performance advantages over traditional silanes. This product is essential for manufacturers in the rubber, sealant, adhesive, and advanced composite materials industries seeking to improve product durability and performance.

Application

• As a coupling agent in silica-filled rubber compounds (e.g., tires, industrial belts) to improve reinforcement and reduce rolling resistance.
• Enhancing the adhesion of sealants and adhesives to glass, metal, and mineral substrates.
• Surface treatment of mineral fillers and glass fibers for use in reinforced plastics and composites.
• Improving the dispersion and bonding of inorganic pigments in polymer matrices.
• Formulation of waterproofing and protective coatings for construction materials.
• Modification of resin systems to enhance interfacial strength in electronic encapsulants and underfills.

Basic Information

Product Name	Bis(3-Triethoxysilylpropyl)Carbonate
CAS No.	88321-11-3
Molecular Formula	C19H42O9Si2
Molecular Weight	470.71 g/mol
Synonyms	Carbonato-bis(3-triethoxysilylpropano); 1,3-Bis(3-triethoxysilylpropyl) carbonate; Bis(3-triethoxysilylpropyl) carbonate; Carbonate-bridged silane; SCA Carbonate; Silane coupling agent 88321-11-3; 3-(Triethoxysilyl)propyl carbonate dimer
EINECS	Contact for details

Quality Control

Our production of Bis(3-Triethoxysilylpropyl)Carbonate adheres to stringent quality management protocols to ensure batch-to-batch consistency and performance reliability. Each lot is analyzed against key chemical and physical parameters. Certificates of Analysis (COA) documenting purity, assay, and identity are provided and available upon request to support your quality assurance and regulatory needs.

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); containers must be kept tightly sealed to prevent degradation from atmospheric moisture.

Specification

Item	Specification
Appearance	Clear to slightly yellow liquid
Identification (IR)	Conforms to structure
Assay (GC or Titration)	≥ 95.0%
Refractive Index (n20D)	1.410 - 1.420
Density (g/mL, 20°C)	1.00 - 1.05

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