tert-Butyl peroxybenzoate (XJ-TBPB)

CAS # 614-45-9
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Products Description

Chemical name                   tert-Butyl peroxybenzoate

CAS NO.                                   614-45-9

Brand Name                           XJ-TBPB

Molecular Weight                 194.2

Molecular Formula                 C₁₁H₁₄O₃

Assay / physical form         98% Liquid / 50% powder 



Tert-Butyl peroxybenzoate ,TBPB peroxide is commonly used as a versatile initiator, curing agent, and vulcanizing agent across various industrial processes. Its ability to generate free radicals makes it ideal for promoting polymerization and cross-linking reactions, especially in the production of plastics, resins, and rubber products.

Brand Name
AssayPhysical FormOxygen Content                                                           Application & Features 
XJ-TBPB98%Liquid 8.07%

● An effective medium-temperature initiator used in the production of low-density polyethylene 

(LDPE) through tubular and autoclave methods;

● Used in polymerization and copolymarization of styrene，alongside benzoyl peroxide (BPO) to 

initiate the reaction, ensuring consistent and high-quality results;

● Used in the polymerization of acrylates, offering a safer alternative to traditional azo initiators, 

reducing toxicity in final resins. It’s also used in vinyl acetate polymerizations

● By incorporating TBPB into fuels, it significantly enhances the cetane number, improving 

combustion efficiency and performance

XJ-TBPB5050%Powder    4.04%

● Recommended for the crosslinking of NBR, SBR, EP(D)M, LDPE and EVA. Rubber compounds 

containing TBPB have moderate processing safety in combination with a very high speed of cure;

● Used in the curing of unsaturated polyester resin ;

XJ -TBPB is equivalent to Nouryon Trigonox C , Pergan PEROXAN PB ,and Arkema LUPEROX® P.

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