Description

Peroxide, Dicyclopentyl (9Ci) is a specialized organic peroxide compound, identified by CAS NO 55999-66-1. This chemical serves as a critical initiator and cross-linking agent in polymerization processes, valued for its ability to generate free radicals under controlled thermal conditions. It is essential for manufacturers in the polymer and specialty chemical industries seeking to produce materials with specific structural and thermal properties.

Application

• Primary initiator for the polymerization of ethylene, styrene, and other vinyl monomers.
• Key cross-linking agent in the production of polyethylene (PE) and ethylene-propylene-diene monomer (EPDM) rubber.
• Used in the synthesis of thermoset resins and composite materials.
• Employed as a curing agent in the manufacture of fiberglass reinforced plastics (FRP).
• Facilitates controlled degradation and modification of polymer chains (visbreaking) for rheology control.
• Applied in specialty organic synthesis as an oxidizing agent for specific reaction pathways.

Basic Information

Product Name	Peroxide, Dicyclopentyl (9Ci)
CAS No.	55999-66-1
Molecular Formula	C10H18O2
Molecular Weight	170.25 g/mol
Synonyms	Dicyclopentyl Peroxide; Bis(cyclopentyl) Peroxide; DCPO; Cyclopentyl Peroxide; Peroxide, bis(cyclopentyl)-; 1,1'-Dioxybis(cyclopentane); (Cyclopentylperoxy)cyclopentane
EINECS	Contact for details

Quality Control

Our Peroxide, Dicyclopentyl (9Ci) is manufactured under stringent quality management systems. Each batch undergoes rigorous analytical testing to ensure high purity and consistent performance as a polymerization initiator. Certificates of Analysis (COA) detailing assay, purity, and impurity profiles 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 flames. Keep away from reducing agents, strong acids, bases, and other incompatible materials. Recommended storage temperature is 2-8°C to maintain stability. This product is a strong oxidizer and light-sensitive (store away from light).

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0 %
Active Oxygen Content	≥ 9.3 %
Cyclopentanol (Impurity)	≤ 2.0 %
Water Content (KF)	≤ 0.5 %
Density (at 20°C)	~1.0 g/cm³

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