Speciality Chemicals

Heptamethyltrisiloxane

  • CAS No.1873-88-7
  • GradeIndustrial / Pharmaceutical
  • Availability● In Stock

High purity Heptamethyltrisiloxane silicone fluid ideal for cosmetic formulations, water-repellent coatings, and industrial additives.

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Product Technical Details

Product Overview

Heptamethyltrisiloxane is a premium low-viscosity silicone fluid recognized for its exceptional surface activity and spreading capabilities. As a specialized trisiloxane derivative, this compound serves as a critical functional ingredient across multiple high-performance industries. Our manufacturing process ensures rigorous quality control, delivering a product that meets stringent international standards for purity and consistency. This chemical is particularly valued for its ability to reduce surface tension effectively, making it an indispensable component in advanced formulation chemistry.

Designed for versatility, this siloxane exhibits excellent compatibility with various organic solvents and active ingredients. Whether utilized in personal care formulations or industrial coating systems, it provides reliable performance enhancements. Our facility adheres to Good Manufacturing Practices (GMP) to guarantee that every batch maintains the highest level of chemical integrity and safety profile required for sensitive applications.

Key Specifications

ParameterSpecification
CAS Number1873-88-7
Molecular FormulaC7H22O2Si3
Molecular Weight222.51 g/mol
AppearanceColorless clear liquid
Purity (GC)≥99.0%
Density0.819 g/cm3
Boiling Point142°C
Flash Point22°C
Refractive Index1.382

Industrial Applications

The unique physicochemical properties of Heptamethyltrisiloxane enable its deployment in a diverse range of commercial sectors. In the personal care industry, it acts as a superior emollient and spreading agent in cosmetics and deodorants, enhancing skin feel and product distribution. Its hydrophobic nature makes it highly effective for water-repellent treatments, such as windshield coatings and textile finishes, where durability and clarity are paramount.

  • Enhances spreadability in cosmetic lotions and creams
  • Provides water repellency in automotive and glass coatings
  • Functions as a processing aid in food additive formulations
  • Improves surface modification in soap and detergent manufacturing
  • Serves as a reactive intermediate for specialized silicone synthesis

Furthermore, its stability under varying thermal conditions allows for use in demanding industrial processes. Manufacturers seeking to improve product texture, surface coverage, or moisture resistance often select this material as a key formulation component. Our technical team supports clients with detailed formulation guides to optimize integration into existing production lines.

Storage and Handling

To maintain optimal quality, Heptamethyltrisiloxane should be stored in a cool, well-ventilated area away from direct sunlight and heat sources. Containers must remain tightly sealed when not in use to prevent contamination or moisture absorption. Standard safety protocols for handling chemical liquids apply, including the use of appropriate personal protective equipment. We provide comprehensive Safety Data Sheets (SDS) and Certificates of Analysis (COA) with every shipment to ensure regulatory compliance and safe usage across global supply chains.