Description

Benzoyl 3-Chlorobenzoyl Peroxide is a specialized organic peroxide compound, functioning as a high-activity initiator and cross-linking agent. Its unique asymmetrical structure, combining benzoyl and 3-chlorobenzoyl moieties, offers distinct reactivity and decomposition profiles critical for controlled polymerization processes. This compound is essential for manufacturers in the polymer, resin, and specialty chemical industries seeking precise control over molecular weight and polymer architecture.

Application

• Polymerization Initiator: Primarily used as a free-radical initiator for the polymerization of vinyl monomers like styrene, methyl methacrylate (MMA), and vinyl chloride.
• Cross-linking Agent for Resins: Employed in the curing and cross-linking of unsaturated polyester resins (UPR) for fiberglass-reinforced plastics (FRP) and coatings.
• Silicone Rubber Vulcanization: Acts as a high-temperature curing agent for heat-cured silicone rubber (HCR) in the production of seals, gaskets, and medical-grade tubing.
• Acrylic Sheet Production: Used in the casting process for polymethyl methacrylate (PMMA) sheets and blocks.
• Adhesive & Sealant Formulation: A key component in reactive adhesives and anaerobic sealants that cure in the absence of air.
• Specialty Polymer Synthesis: Facilitates the production of block copolymers and other advanced polymeric materials with specific thermal and mechanical properties.

Basic Information

Product Name	Benzoyl 3-Chlorobenzoyl Peroxide
CAS No.	13495-28-8
Molecular Formula	C14H8Cl2O4
Molecular Weight	311.12 g/mol
Synonyms	3-Chlorobenzoyl Benzoyl Peroxide; Benzoyl Peroxide, 3-Chlorobenzoyl Ester; Asymmetrical Chlorobenzoyl Peroxide; (3-Chlorobenzoyl) (benzoyl) peroxide; Peroxide, benzoyl 3-chlorobenzoyl; BCPO (common abbreviation); 1,1'-(Dioxydicarbonyl)bis[3-chlorobenzene] (alternative IUPAC); Bis(3-chlorobenzoyl) peroxide (related symmetrical compound)
EINECS	Contact for details

Quality Control

Our Benzoyl 3-Chlorobenzoyl Peroxide is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including assay by iodometric titration and impurity profiling, to ensure it meets precise specifications for active oxygen content and purity. Certificates of Analysis (COA) documenting all critical parameters are available upon request 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, sparks, and open flame. Recommended storage temperature is 15-25°C (59-77°F). This material is easily oxidized and should be stored under an inert atmosphere if in opened containers. Keep away from incompatible materials such as reducing agents, strong acids, bases, and metallic salts. Observe all local regulations for the storage of organic peroxides.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (Active Oxygen)	≥ 98.0 %
Melting Point	Contact for details
Loss on Drying	≤ 0.5 %
Residue on Ignition	≤ 0.1 %
Chloride Content	Conforms

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