Description

n-Heptyltrichlorosilane is a versatile organosilicon compound that serves as a critical intermediate in the synthesis of functionalized silanes and silicone polymers. Its primary value lies in its ability to act as a coupling agent and surface modifier, imparting hydrophobic and oleophobic properties to inorganic substrates. This makes it essential for manufacturers in the coatings, electronics, and advanced materials sectors seeking to enhance product performance and durability.

Application

• Surface Modification Agent: Used to treat glass, silica, and other metal oxides to create hydrophobic surfaces for anti-fog, anti-icing, or self-cleaning coatings.
• Silicone Intermediate: A key monomer in the production of specialty silicone oils, resins, and elastomers with tailored chain lengths and properties.
• Adhesion Promoter: Functions as a coupling agent in composite materials and sealants to improve bonding between organic polymers and inorganic fillers.
• Nanomaterial Functionalization: Employed to modify nanoparticles (e.g., silica, titania) for dispersion stability in non-polar matrices for advanced composites.
• Water Repellent Treatments: Formulated into solutions for waterproofing textiles, construction materials, and electronic components.
• Chemical Synthesis Building Block: Serves as a precursor for synthesizing more complex organosilicon compounds with heptyl functionality.

Basic Information

Product Name	n-Heptyltrichlorosilane
CAS No.	871-41-0
Molecular Formula	C7H15Cl3Si
Molecular Weight	233.64 g/mol
Synonyms	Heptyltrichlorosilane; Trichloro(heptyl)silane; 1-Heptyltrichlorosilane; n-Heptylsilicon trichloride; Heptyltrichlorosilane; Silane, heptyltrichloro-; n-C7H15SiCl3; Heptylsilyl trichloride
EINECS	212-807-5

Quality Control

Our n-Heptyltrichlorosilane is manufactured under stringent process controls to ensure batch-to-batch consistency and high purity. Quality is verified through a comprehensive suite of analytical techniques including gas chromatography (GC), nuclear magnetic resonance (NMR), and titration methods. A Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with each shipment to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area away from heat and incompatible materials. Due to its hygroscopic and moisture-sensitive nature, containers must be kept tightly sealed under an inert atmosphere (e.g., nitrogen or argon) to prevent hydrolysis. Recommended storage temperature is 2-8°C for long-term stability.

Specification

Item	Specification
Appearance	Colorless to pale yellow clear liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 97.0%
Density (at 25°C)	1.07 - 1.09 g/mL
Refractive Index (n20/D)	1.445 - 1.455
Chloride Content	44.5 - 46.0 %

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