Description

Dicumyl Peroxide is a high-purity organic peroxide widely recognized as a highly efficient crosslinking agent and polymerization initiator. Its primary commercial value lies in its ability to initiate free-radical reactions at elevated temperatures, making it indispensable for creating durable, heat-resistant polymer networks. This compound is essential for manufacturers in the polymer and rubber industries seeking to enhance the mechanical properties and thermal stability of their products.

Application

• Crosslinking Agent for Polyethylene (PE): Used to crosslink low-density polyethylene (LDPE) and high-density polyethylene (HDPE) for wire and cable insulation, pipes, and foam, improving environmental stress crack resistance and thermal properties.
• Vulcanizing Agent for Elastomers: Serves as a co-agent in the peroxide cure of ethylene-propylene-diene monomer (EPDM), silicone rubber, and other synthetic rubbers to achieve superior heat resistance and compression set.
• Polymerization Initiator: Acts as a free-radical initiator for the bulk or suspension polymerization of styrene, acrylics, and other vinyl monomers.
• Modifier for Thermoplastics: Employed in the controlled rheology of polypropylene (PP) to regulate molecular weight and improve processability.
• Adhesive and Composite Curing: Used in the curing systems of structural adhesives, gel coats, and fiber-reinforced polymer (FRP) composites.
• Intermediate for Organic Synthesis: Utilized in specialty chemical synthesis as a source of free radicals.

Basic Information

Product Name	Dicumyl Peroxide
CAS No.	80-43-3
Molecular Formula	C18H22O2
Molecular Weight	270.37 g/mol
Synonyms	Di(α,α-dimethylbenzyl) peroxide; Bis(α,α-dimethylbenzyl) peroxide; DCP; Dicumyl peroxide; Dicumylperoxide; Peroxide, bis(1-methyl-1-phenylethyl); Perkadox BC; Luperox DC
EINECS	201-279-3

Quality Control

Our Dicumyl Peroxide is manufactured under a stringent quality management system to ensure batch-to-batch consistency and reliability. Each lot undergoes comprehensive analytical testing, including assay by HPLC and verification of active oxygen content, to meet precise industry specifications. A Certificate of Analysis (COA) detailing purity, impurities, and physical parameters is provided with every 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 sources, sparks, and open flame. Maintain storage temperature between 15°C and 25°C (59°F and 77°F). Keep away from incompatible materials such as strong acids, reducing agents, and other peroxides. Observe all local regulations for the storage of organic peroxides.

Specification

Item	Specification
Appearance	White to off-white crystalline solid
Identification (IR)	Conforms
Assay (HPLC)	≥ 98.0 %
Active Oxygen Content	≥ 5.85 %
Melting Point	38 - 42 °C
Loss on Drying	≤ 0.5 %
Residue on Ignition	≤ 0.1 %

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