Description

3-(Trihydroxysilyl)-1-Propanesulfonic Acid Potassium Salt is a bifunctional organosilicon compound that combines a reactive silanol group with a sulfonate anionic moiety. This unique structure makes it a highly effective coupling agent and surface modifier, providing excellent adhesion promotion and compatibility between inorganic and organic materials. It is essential for industries requiring durable surface treatments, stable colloidal systems, and enhanced material performance. Key users include manufacturers of advanced coatings, adhesives, sealants, and specialty chemical formulations.

Application

• Surface Modification Agent: Used to treat glass, silica, and metal oxides to improve adhesion and dispersion in polymer matrices.
• Coupling Agent for Composites: Enhances the interfacial bonding between inorganic fillers (e.g., glass fibers, minerals) and organic resins in composite materials.
• Dispersant and Stabilizer: Acts as a powerful dispersing agent for pigments and nanoparticles in aqueous and solvent-based systems.
• Adhesive and Sealant Formulations: Incorporated to improve moisture resistance and long-term durability of adhesives and sealants.
• Antistatic and Conductive Coatings: Utilized in coatings where surface conductivity and static dissipation are required.
• Pharmaceutical and Biomedical Intermediates: Serves as a key intermediate or functionalizing agent in the synthesis of specialized biomaterials and drug delivery systems.
• Textile and Fiber Treatment: Applied to fabrics and fibers to impart durable hydrophilic or functional properties.

Basic Information

Product Name	3-(Trihydroxysilyl)-1-Propanesulfonic Acid Potassium Salt
CAS No.	70942-26-6
Molecular Formula	C3H9KO6SSi
Molecular Weight	240.34 g/mol
Synonyms	Potassium 3-(trihydroxysilyl)-1-propanesulfonate; 1-Propanesulfonic acid, 3-(trihydroxysilyl)-, potassium salt; SIT 8187.0; SIT8187.0; 3-(Trihydroxysilyl)propylsulfonic acid potassium salt; (3-Sulfopropyl)trimethoxysilane potassium salt (hydrolyzed); γ-Sulfopropyltrimethoxysilane potassium salt; Potassium 3-(trimethoxysilyl)propanesulfonate (hydrolyzed form)
EINECS	Contact for details

Quality Control

Our 3-(Trihydroxysilyl)-1-Propanesulfonic Acid Potassium Salt is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure high purity, consistent performance, and traceability. We provide comprehensive Certificates of Analysis (COA) with each shipment, detailing key parameters such as assay, impurity profile, and physical properties. Our quality commitment ensures the material meets the stringent requirements for research, development, and industrial-scale production.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). Due to its hygroscopic nature, the container must be kept tightly sealed after opening to minimize exposure to atmospheric moisture. Keep away from incompatible materials such as strong acids and strong oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white powder or crystalline solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Water Content (KF)	≤ 5.0%
pH (5% aqueous solution)	6.0 - 8.0
Heavy Metals (as Pb)	≤ 20 ppm

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