Description

Hexadecyl(Trihydroxy)Silane is a high-purity organosilicon compound, specifically a long-chain alkyl silanol. This chemical is valued for its unique bifunctional nature, featuring a reactive silanol head group and a hydrophobic hexadecyl tail, making it an effective coupling agent and surface modifier. It is essential for industries requiring durable hydrophobic coatings, improved adhesion between organic and inorganic materials, and enhanced filler dispersion in composite systems.

Application

• Surface Modification Agent: Imparts durable hydrophobicity and oleophobicity to glass, silica, metals, and other inorganic surfaces.
• Coupling Agent for Composites: Enhances the interfacial adhesion and dispersion of fillers (e.g., silica, calcium carbonate) in polymer matrices like rubbers, plastics, and sealants.
• Water Repellent for Construction: Used in formulations for concrete, stone, and masonry sealers to provide long-lasting water resistance.
• Coating Additive: Improves the scratch resistance, weather stability, and adhesion of paints, inks, and protective coatings.
• Textile Finishing: Applied to fabrics and fibers to create water-repellent and stain-resistant finishes.
• Adhesive & Sealant Formulation: Acts as an adhesion promoter and rheology modifier in silicone and polyurethane-based systems.
• Cosmetic & Personal Care: Functions as a conditioning agent and film-former in hair care and skincare products.
• Pharmaceutical Intermediates: Serves as a key synthetic building block for more complex organosilicon molecules.

Basic Information

Product Name	Hexadecyl(Trihydroxy)Silane
CAS No.	171194-90-4
Molecular Formula	C₁₆H₃₈O₃Si
Molecular Weight	306.57 g/mol
Synonyms	Hexadecylsilanetriol; Cetyl Silanetriol; n-Hexadecylsilanetriol; Trihydroxy(hexadecyl)silane; Silanetriol, hexadecyl-; 1-Hexadecanol, 1-(trihydroxysilyl)-; Palmitylsilanetriol; Organosilane Coupling Agent KH-3116
EINECS	Contact for details

Quality Control

Our Hexadecyl(Trihydroxy)Silane is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including chromatography and spectroscopy, to ensure high purity and consistent performance. Certificates of Analysis (COA) detailing purity, identity, and key specifications are provided with every shipment to guarantee compliance with your technical requirements.

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 product is hygroscopic (moisture-sensitive). Keep the container tightly sealed under an inert atmosphere (e.g., nitrogen) to prevent moisture absorption and degradation.

Specification

Item	Specification
Appearance	White to off-white powder or waxy solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Melting Point	40 - 50 °C
Loss on Drying	≤ 2.0 %
Heavy Metals (as Pb)	≤ 10 ppm

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