Description

Diisobutyryl Peroxide is a highly effective organic peroxide initiator widely used in industrial polymerization processes. Its primary value lies in its ability to decompose at moderate temperatures to generate free radicals, initiating and controlling the synthesis of various polymers. This compound is essential for manufacturers in the plastics, resins, and specialty chemical industries seeking reliable and efficient polymerization catalysts.

Application

• Polymerization Initiator: A key catalyst for the production of polyvinyl chloride (PVC), polystyrene, and other vinyl polymers.
• Cross-linking Agent: Used in the curing and cross-linking of unsaturated polyester resins for fiberglass-reinforced plastics and composites.
• Synthetic Rubber Production: Employed as an initiator in the synthesis of various synthetic elastomers.
• Acrylic Resin Manufacturing: Facilitates the polymerization of methyl methacrylate and other acrylic monomers.
• Curing Agent for Coatings: Used in the formulation of heat-cured industrial coatings and paints.
• Chemical Synthesis Intermediate: Serves as a radical source in organic synthesis for creating specialty chemicals.

Basic Information

Product Name	Diisobutyryl Peroxide
CAS No.	3437-84-1
Molecular Formula	C8H14O4
Molecular Weight	174.19 g/mol
Synonyms	Bis(isobutyryl) peroxide; Diisobutyryl peroxide; Isobutyryl peroxide; Di(2-methylpropanoyl) peroxide; Peroxide, bis(2-methyl-1-oxopropyl); Butanoyl peroxide, 2-methyl-; EINECS 222-335-7
EINECS	222-335-7

Quality Control

Our Diisobutyryl Peroxide is manufactured under strict quality management systems to ensure batch-to-batch consistency and reliability. The product undergoes rigorous analytical testing, including assay by iodometric titration and purity verification by gas chromatography (GC). A comprehensive Certificate of Analysis (COA) detailing purity, active oxygen content, and impurity profiles is provided with each 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, sparks, and open flames. Due to its nature as a peroxide, store separately 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)	≥ 9.1 %
Purity (GC)	≥ 98.0 %
Density (at 20°C)	~1.02 g/cm³
Refractive Index (nD20)	~1.410 - 1.415

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