Description

Di-tert-Butyl Diperoxydodecanedioate is a high-purity organic peroxide widely utilized as a polymerization initiator and crosslinking agent. Its controlled decomposition characteristics are critical for ensuring consistent polymer quality and process safety in demanding industrial applications. This compound is essential for manufacturers in the polymer, rubber, and specialty plastics industries seeking reliable and efficient free-radical initiation.

Application

• Polymerization Initiator: Primarily used for the free-radical polymerization of ethylene, vinyl chloride, styrene, and acrylates to produce various grades of polymers and copolymers.
• Crosslinking Agent: Employed in the crosslinking of polyethylene, ethylene-propylene-diene monomer (EPDM) rubber, and silicone rubbers to enhance thermal and mechanical properties.
• Curing Agent for Unsaturated Polyester Resins: Facilitates the room-temperature or elevated-temperature curing of resins in the production of fiberglass-reinforced plastics (FRP) and composites.
• Organic Synthesis Intermediate: Serves as a source of tert-butoxy radicals in specialized organic synthesis and modification reactions.
• Wire & Cable Insulation: Used in the crosslinking of polyethylene insulation for wires and cables to improve heat resistance and durability.
• Foam Production: Acts as a blowing agent activator in the manufacture of expanded polystyrene (EPS) and polyolefin foams.

Basic Information

Product Name	Di-tert-Butyl Diperoxydodecanedioate
CAS No.	93778-66-6
Molecular Formula	C20H38O8
Molecular Weight	406.52 g/mol
Synonyms	Di-tert-butyl dodecanedioate diperoxide; Dodecanedioic acid, diperoxy di-tert-butyl ester; DTBDD; Di-t-butyl diperoxyazelate (common misnomer for related compound); Peroxide K-1; Luperox 331; Crosslinking agent 331; 1,12-Bis(tert-butylperoxy)dodecanedioate; tert-Butyl peroxy dodecanedioate
EINECS	Contact for details

Quality Control

Our Di-tert-Butyl Diperoxydodecanedioate is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including assay by iodometric titration and purity verification by HPLC, to ensure it meets precise specifications for active oxygen content and impurity profiles. Certificates of Analysis (COA) documenting all critical parameters are provided with every shipment to guarantee traceability and batch-to-batch consistency.

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, acids, bases, and combustible materials. Recommended storage temperature is below 30°C (86°F). This product is a light-sensitive organic peroxide; inspect containers regularly and follow all relevant safety data sheet (SDS) instructions.

Specification

Item	Specification
Appearance	White to off-white crystalline powder or flakes
Identification (IR)	Conforms
Assay (Active Oxygen)	≥ 97.0%
Purity (HPLC)	≥ 98.0%
Melting Point	54 - 58 °C
Loss on Drying	≤ 0.5%
Heavy Metals (as Pb)	≤ 10 ppm

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