Description

Silicic Acid (H4Sio4), Disodium Salt, Reaction Products With Chlorotrimethylsilane CAS NO 70776-11-3 is a specialized organosilicon compound derived from the reaction of a disodium silicate derivative with chlorotrimethylsilane. This product is valued for its unique surface-modifying and hydrophobic properties, making it a key functional additive in advanced material formulations. It is primarily sought by manufacturers in the coatings, sealants, and specialty polymer industries seeking to enhance product performance and durability.

Application

• As a hydrophobic agent and surface modifier in mineral fillers (e.g., precipitated silica, calcium carbonate) for plastics and rubber composites.
• Key intermediate in the synthesis of specialty silicone resins and polymers with tailored properties for high-performance coatings.
• Used as a water-repellent additive in construction materials, including waterproofing sealants and concrete treatments.
• Acts as a coupling agent and dispersant in pigment and filler masterbatches to improve compatibility and processing.
• Employed in the formulation of release coatings and anti-adhesive layers for industrial and packaging applications.
• Potential use as a stabilizer or rheology modifier in specific adhesive and potting compound formulations.

Basic Information

Product Name	Silicic Acid (H4Sio4), Disodium Salt, Reaction Products With Chlorotrimethylsilane
CAS No.	70776-11-3
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Disodium Silicate, Reaction Products with Chlorotrimethylsilane; Silicic Acid (H4SiO4), Disodium Salt, Reaction Products with Chlorotrimethylsilane; Trimethylsilylated Disodium Silicate; Hydrophobic Modified Sodium Silicate; Organomodified Sodium Silicate; Surface-Treated Sodium Silicate; Silane Coupling Agent Derivative; Sodium Silicate Silyl Ester
EINECS	Contact for details

Quality Control

Our production of this organosilicon compound adheres to a strict quality management system. Each batch is characterized and tested to ensure consistent chemical composition and performance. Certificates of Analysis (COA) detailing key parameters are provided to guarantee the material meets your specific application requirements and internal specifications.

Storage

Preserve in a tightly closed container, protected from light. This material is hygroscopic (moisture-sensitive). Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Keep the container tightly sealed when not in use to minimize exposure to atmospheric moisture, which can affect product performance.

Specification

Item	Specification
Appearance	White to off-white powder or granules
Identification (IR)	Conforms
Assay (Active Content)	≥ 95%
Loss on Drying	≤ 2.0%
pH (in solution)	Contact for details
Bulk Density	Contact for details

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