Description

Dioctanoyl Peroxide is a highly effective organic peroxide initiator widely used in polymerization processes. Its controlled decomposition characteristics make it a critical component for achieving specific polymer properties and reaction kinetics. This compound is essential for manufacturers in the polymer and plastics industries seeking reliable and efficient free-radical initiation for resins and specialty materials.

Application

• Polymerization Initiator: Primary use as a free-radical initiator for the polymerization of vinyl chloride, styrene, and acrylates.
• Crosslinking Agent: Used in the curing and crosslinking of unsaturated polyester resins (UPR) for composite materials.
• Synthesis of Specialty Polymers: Facilitates the production of specific grades of polyvinyl chloride (PVC), polystyrene (PS), and acrylic polymers.
• Curing of Thermoset Resins: Employed in the manufacture of fiberglass-reinforced plastics (FRP), coatings, and laminates.
• Modifier for Polymer Properties: Used to control molecular weight and branching during polymer synthesis to achieve desired material characteristics.
• Chemical Intermediate: Serves as a reagent in organic synthesis for introducing peroxy functional groups.

Basic Information

Product Name	Dioctanoyl Peroxide
CAS No.	762-16-3
Molecular Formula	C16H30O4
Molecular Weight	286.41 g/mol
Synonyms	Di-n-octanoyl peroxide; Caprylyl peroxide; Dicapryloyl peroxide; Bis(octanoyl) peroxide; Peroxide, bis(1-oxooctyl); Octanoic peroxyanhydride; LP-40 (trade name variant)
EINECS	212-082-2

Quality Control

Our Dioctanoyl Peroxide is manufactured under strict quality control protocols to ensure batch-to-batch consistency and performance reliability. Each lot is analyzed to confirm critical parameters such as active oxygen content and purity. A comprehensive Certificate of Analysis (COA) detailing assay results, impurity profiles, and physical properties is provided with every shipment to support your quality assurance requirements.

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. Due to its nature as a strong oxidizing agent, it must be segregated from reducing agents, acids, bases, and combustible materials. Recommended storage temperature is below 25°C (77°F).

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms
Assay (Active Oxygen)	≥ 5.5 %
Purity (HPLC)	≥ 98.0 %
Acidity (as Octanoic Acid)	≤ 1.0 %
Water Content (KF)	≤ 0.5 %

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