Bis(tert-butylperoxyisopropyl)benzene (BIPB)

Bis(tert-butylperoxyisopropyl)benzene (BIPB), CAS 25155-25-3

Bis(tert-butylperoxyisopropyl)benzene (BIPB), CAS 25155-25-3, is an organic peroxide compound with the molecular formula C20H34O4 and molecular weight of 338.48.

BIPB is widely used as a free radical initiator, crosslinking agent and curing agent in polymer and rubber processing. During processing, the organic peroxide can generate free radicals that initiate crosslinking reactions in suitable polymer and elastomer systems.

Bis(tert-butylperoxyisopropyl)benzene is commonly used in rubber, elastomers, polyethylene and other polymer materials where peroxide crosslinking is required. It can contribute to improved heat resistance, mechanical properties, chemical resistance and overall performance of crosslinked materials.

Product Chemical Properties

Product Name: Bis(tert-butylperoxyisopropyl)benzene (BIPB)

CAS No.: 25155-25-3

EC No.: 246-678-3

Molecular Formula: C₂₀H₃₄O₄

Molecular Weight: 338.48

Chemical Name: Bis(tert-butylperoxyisopropyl)benzene

Chemical Type: Organic Peroxide / Crosslinking Agent / Free Radical Initiator

Synonyms: BIPB, α,α′-Bis(tert-butylperoxy)diisopropylbenzene, Bis(tert-butylperoxyisopropyl)benzene

Activation energy : 36.1kcal/mol

1min, Halflife temp.: 182℃
SADT.: 80℃
Alarm temp.: 75℃

Product Technical Specification

Product                           BIPB96                    BIPB-S                BIPB40A     BIPB40B      BIPB40EM

Appearance           White to yellowish powder    White to yellowish slice    White granule    White powder    Granule or flake    

Content(%)                    min.96.0                    min.96.0               39.0-41.0    39.0-41.0    38.5-41.5    

Carrier                            N/A                              N/A                   CaCO₃, SiO₂   CaCO₃, SiO₂   EP(D)M, CaCO₃, SiO₂    

Melting Point (℃)           40-55                         40-55                        N/A            N/A               N/A    

Applications of Bis(tert-butylperoxyisopropyl)benzene (BIPB)

This product is primarily used in industries such as wire and cable, footwear materials and floor mats, seals, and plastic modification. It serves as a cross-linking agent for plastics and rubbers—including chlorinated polyethylene (CPE), EPDM, EVA, silicone rubber, nitrile rubber (NBR), and fluoroelastomer (FKM)—and can also function as a degradation agent for polypropylene (PP). To achieve the same cross-linking effect, the required dosage is approximately two-thirds that of DCP, and the product generates minimal irritating odor during processing and in the finished goods.

Packaging

Packed in carton with 2*10kg PE bags inside, N.W.:20KG.

Production Capacity

12000MT/year

Storage Requirements

Keep away from direct sunlight, heating, violent shaking,

strong acids and reductive agents during transportation or storage.

Bis(tert-butylperoxyisopropyl)benzene (BIPB) Bulk Supply from China

Hosea Chem® offers Bis(tert-butylperoxyisopropyl)benzene (BIPB), CAS 25155-25-3, for industrial applications with competitive pricing and reliable export service.

We support international shipments using suitable approved packaging in accordance with product specifications and applicable transportation requirements. TDS, MSDS and COA are available upon request.

Contact Hosea Chem for the latest Bis(tert-butylperoxyisopropyl)benzene (BIPB) price, bulk quotation, availability and technical documents.

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