Description

tert-Butyl peroxy-3,5,5-trimethylhexanoate is a high-purity organic peroxide widely used as a polymerization initiator and crosslinking agent. Its value lies in its ability to efficiently generate free radicals at moderate temperatures, enabling controlled polymer synthesis and material modification. This product is essential for manufacturers in the plastics, rubber, and specialty chemical industries seeking reliable and effective initiators for production processes.

Application

• Polymerization Initiator: Primarily used for the free-radical polymerization of ethylene, vinyl acetate, styrene, and (meth)acrylates to produce various polymers and copolymers.
• Crosslinking Agent: Employed in the crosslinking of unsaturated polyester resins (UPR) and polyethylene to enhance thermal and mechanical properties.
• Synthetic Rubber Production: A key component in the manufacture of ethylene-propylene-diene monomer (EPDM) rubber and other synthetic elastomers.
• Curing Agent for Composites: Used in the curing of fiber-reinforced plastics (FRP) and sheet molding compounds (SMC) for automotive and construction parts.
• Organic Synthesis: Serves as an oxidizing agent and a source of tert-butoxy radicals in specialty chemical synthesis.
• Wire & Cable Insulation: Utilized in the crosslinking of polyethylene for improved heat resistance in wire and cable coating applications.

Basic Information

Product Name	tert-Butyl Peroxy-3,5,5-Trimethylhexanoate
CAS No.	13122-18-4
Molecular Formula	C₁₃H₂₆O₄
Molecular Weight	246.35 g/mol
Synonyms	tert-Butyl peroxy-3,5,5-trimethylhexanoate; 3,5,5-Trimethylhexanoic acid tert-butyl peroxy ester; Peroxide, tert-butyl 3,5,5-trimethylhexanoate; Trigonox 42S; Perhexyl PV; TBPMH; tert-Butyl peroxy-3,5,5-trimethylhexanoate; tert-Butyl 3,5,5-trimethylperoxyhexanoate
EINECS	236-049-5

Quality Control

Our tert-Butyl peroxy-3,5,5-trimethylhexanoate is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including assay and impurity profile analysis, to ensure it meets precise specifications for use as a polymerization initiator. A Certificate of Analysis (COA) detailing purity, active oxygen content, and key physical properties is provided with every shipment to guarantee consistency and performance.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, well-ventilated area away from heat, sparks, and open flames. Due to its properties as an organic peroxide and being easily oxidized, it is recommended to store under an inert atmosphere where practical. Keep away from incompatible materials such as strong acids, reducing agents, and other peroxides. Recommended storage temperature is below 30°C (86°F).

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms
Assay (by GC)	≥ 98.0 %
Active Oxygen Content	≥ 6.4 %
Density (at 20°C)	0.88 - 0.90 g/cm³
Refractive Index (n20D)	1.420 - 1.430
Water Content (KF)	≤ 0.1 %

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