Bio - Based / Green Solvents, High-Purity Solvents

Dihexyl Sebacate

Dihexyl Sebacate, identified by the CAS Registry Number 200800, is a high-performance synthetic ester derived from the reaction between sebacic acid and hexanol. Functioning primarily as a specialized plasticizer, this organic compound is characterized by its linear molecular architecture which imparts exceptional flexibility and low-temperature performance to various polymeric matrices. Its chemical structure consists of two hexyl chains esterified to a decanedioic acid backbone, providing a unique balance of molecular weight and polarity. Physically, it presents as a clear, colorless to pale yellow liquid with low volatility and high thermal stability. The compound is valued in chemical engineering for its ability to reduce the glass transition temperature of polymers while maintaining high resistance to oxidative degradation and UV exposure. Dihexyl Sebacate is non-corrosive and possesses excellent lubrication properties, making it an essential component in advanced material formulations where long-term durability and consistent performance under extreme environmental conditions are mandatory requirements.

Attributes

Key Features and Benefits

Exhibits outstanding low-temperature flexibility, ensuring that plasticized materials remain pliable and functional even in sub-zero environments without becoming brittle or cracking.
Demonstrates high thermal stability and low volatility, which minimizes material loss during high-temperature processing and extends the service life of finished products.
Provides excellent resistance to UV radiation and oxidative aging, maintaining the structural integrity and aesthetic appearance of polymers exposed to harsh outdoor conditions.
Functions as an effective internal lubricant, reducing friction within polymer chains and improving the overall melt flow properties during extrusion.
Displays low water solubility and high migration resistance, ensuring that the plasticizer remains within the polymer matrix and does not leach.

Specifications

Technical Highlights

Chemical Formula: C22H42O4, featuring a molecular weight of approximately 370.57 g/mol, which classifies it as a medium-to-high molecular weight synthetic organic ester.
Specific Gravity and Density: Typically ranges between 0.915 and 0.930 g/cm3 at 20 degrees Celsius, facilitating precise volumetric dosing in chemical manufacturing workflows.
Refractive Index: Measured consistently at 1.442 to 1.448 at 20 degrees Celsius, providing a reliable metric for purity verification and quality control during production.
Flash Point: Exceeds 200 degrees Celsius, indicating high thermal safety margins and suitability for high-temperature applications where fire risk must be minimized.
Acid Value: Maintained at a maximum of 0.1 mg KOH/g to ensure minimal residual acidity, preventing catalytic degradation of the host polymer or substrates.

Download Technical Data Sheet (TDS)

Practical industry uses

Applications

Utilized as a primary plasticizer in specialized PVC formulations, specifically for wire insulation and cable jacketing required for extreme cold-weather operations.
Serves as a base fluid or additive in high-performance synthetic lubricants, offering superior viscosity-temperature relationships and excellent boundary lubrication for mechanical components.
Employed in the production of synthetic rubbers and elastomers, enhancing the elongation properties and impact resistance of gaskets and automotive engine parts.
Acts as a key ingredient in technical ink formulations, improving the film-forming characteristics and adhesion of pigments to various non-porous industrial substrates.
Used in the synthesis of cosmetic products where it functions as a skin-conditioning agent and solvent for oil-soluble active ingredients.