Description

(Isopropylidene)Bis[tert-Butyl] Peroxide is a high-purity organic peroxide primarily used as a polymerization initiator and crosslinking agent. Its value lies in its ability to generate free radicals at controlled temperatures, enabling efficient and reliable polymer synthesis. This product is essential for manufacturers in the polymer and specialty chemical industries seeking consistent performance in the production of resins, elastomers, and other advanced materials.

Application

• Primary polymerization initiator for the production of polyethylene (LDPE), polystyrene, and other vinyl polymers.
• Crosslinking agent for silicone rubbers, ethylene-propylene-diene monomer (EPDM) rubber, and polyethylene to enhance thermal and mechanical properties.
• Key component in the synthesis of specialty polymers and high-performance resins requiring controlled radical initiation.
• Used in the manufacture of organic intermediates and fine chemicals where a reliable source of tert-butoxy radicals is required.
• Employed in research and development for studying free radical reaction mechanisms and developing new polymeric materials.

Basic Information

Product Name	(Isopropylidene)Bis[tert-Butyl] Peroxide
CAS No.	4262-61-7
Molecular Formula	C11H24O2
Molecular Weight	188.31 g/mol
Synonyms	2,2-Bis(tert-butylperoxy)propane; DTBPP; Di-tert-butyl peroxyisopropylidene; Peroxide, bis(1,1-dimethylethyl) (1-methylethylidene)di-; 1,1-Di(tert-butylperoxy)cyclohexane (common misnomer); DTBPIP; Luperox® 220; Trigonox® 22
EINECS	224-254-7

Quality Control

Our production of (Isopropylidene)Bis[tert-Butyl] Peroxide adheres to stringent quality management protocols. Each batch is analyzed to ensure it meets precise specifications for purity, active oxygen content, and impurity profiles. Certificates of Analysis (COA) documenting these results are provided to guarantee traceability and compliance with your technical requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, well-ventilated area away from heat, sparks, and open flames. Due to its nature as a strong oxidizer and highly volatile compound, it must be segregated from reducing agents, acids, bases, and other incompatible materials. Recommended storage temperature is below 25°C (77°F).

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms
Assay (GC)	≥ 95.0 %
Active Oxygen Content	Contact for details
Density (at 20°C)	~0.86 g/mL
Refractive Index (n20/D)	~1.41

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