Perodox 14: Di(tert-butylperoxyisopropyl)benzene (25155-25-3) — Crosslinking Agent, Vulcanizing Agent for Rubber and Elastomers, Wire and Cable

August 12, 2026 4 min read





Perodox 14: Di(tert-butylperoxyisopropyl)benzene (25155-25-3) — Crosslinking Agent, Vulcanizing Agent for Rubber and Elastomers, Wire and Cable



Perodox 14: Di(tert-butylperoxyisopropyl)benzene (CAS 25155-25-3)

High-performance bifunctional peroxide for rubber and elastomer crosslinking. Excellent scorch safety and efficient crosslink density in EPDM, EVA, and silicone rubber.

Quick Facts

Trade Name Perodox 14
Chemical Name Di(tert-butylperoxyisopropyl)benzene
CAS Number 25155-25-3
Chemical Family Alkyl Peroxide
Brand Perodox
Function Category Crosslinking Agent, Vulcanizing Agent
Product Line Organic Peroxides – Alkyl Peroxides
Applications EPDM, EVA, Silicone Rubber, POP/POE
Market Segment Rubber and Elastomers, Wire and Cable
Physical Form Solid
Decomposition Temperature 135-175°C
Active Oxygen Content 9.3%
Molecular Weight 338.48

What Is Di(tert-butylperoxyisopropyl)benzene?

Di(tert-butylperoxyisopropyl)benzene is a alkyl peroxide supplied under the Perodox brand as part of the
Organic Peroxides – Alkyl Peroxides portfolio. High-performance bifunctional peroxide for rubber and elastomer crosslinking. Excellent scorch safety and efficient crosslink density in EPDM, EVA, and silicone rubber. As a crosslinking agent, vulcanizing agent,
it is engineered for demanding Rubber and Elastomers, Wire and Cable applications where consistency and purity are critical.

Key Properties & Specifications

  • Chemical family: Alkyl Peroxide
  • CAS number: 25155-25-3
  • Physical form: Solid
  • Decomposition temperature: 135-175°C
  • Active oxygen content: 9.3%
  • Molecular weight: 338.48

How It Works

As an organic peroxide, Di(tert-butylperoxyisopropyl)benzene decomposes by homolytic cleavage when heated near 135-175°C, generating free radicals. These radicals initiate the polymerization or crosslinking of unsaturated monomers (such as styrene, acrylates, vinyls and unsaturated polyester resins), making it a core radical initiator for thermoset and polymer manufacturing.

Primary Applications

Perodox 14 is applied across EPDM, EVA, Silicone Rubber, POP/POE. Typical market segments include Rubber and Elastomers, Wire and Cable.
Its performance profile makes it a trusted choice for formulators who need reproducible,
high-purity raw materials.

Safety, Handling & Storage

Handle Perodox 14 in accordance with its Safety Data Sheet (SDS). Store in original,
sealed packaging away from heat, ignition sources and incompatible materials, within the
recommended temperature range. Personal protective equipment and adequate ventilation are
required. Always consult the current SDS and applicable local regulations before use.

Regulatory & Compliance

Do Sender Chem supplies Di(tert-butylperoxyisopropyl)benzene with full documentation and supports compliance with
international chemical regulations (including REACH where applicable). For controlled
precursor grades, supply is managed under know-your-customer and licensing procedures.

Why Source Perodox 14 from Do Sender Chem?

Do Sender Chem is a global specialty chemical manufacturer offering a broad, multi-language
catalog, consistent quality and responsive technical support. With localized content in 20
languages and worldwide delivery, we help polymer, rubber and specialty producers secure
reliable crosslinking agent, vulcanizing agent supply.

Frequently Asked Questions

What is Di(tert-butylperoxyisopropyl)benzene used for?

Di(tert-butylperoxyisopropyl)benzene (trade name Perodox 14) is used as a Crosslinking Agent, Vulcanizing Agent in EPDM, EVA, Silicone Rubber, POP/POE. It serves manufacturers in the Rubber and Elastomers, Wire and Cable segments.

What is the CAS number of Di(tert-butylperoxyisopropyl)benzene?

The CAS Registry Number of Di(tert-butylperoxyisopropyl)benzene is 25155-25-3. The CAS number uniquely identifies the substance and is the standard reference used in safety data sheets, regulatory filings and procurement specifications.

Is Di(tert-butylperoxyisopropyl)benzene classified as Alkyl Peroxide?

Yes. Di(tert-butylperoxyisopropyl)benzene belongs to the Alkyl Peroxide chemical family and is marketed under the Perodox brand as part of the Organic Peroxides – Alkyl Peroxides product line.

How should Perodox 14 be stored and handled?

Perodox 14 should be stored according to its safety data sheet, away from heat, ignition sources and incompatible materials, in original sealed packaging under the recommended temperature range. Always consult the current SDS and local regulations before handling.

Which industries buy Perodox 14?

Perodox 14 is supplied to producers in the Rubber and Elastomers, Wire and Cable industries that require reliable, high-purity Crosslinking Agent, Vulcanizing Agent raw materials.

Related Products

Explore other alkyl peroxide and crosslinking agent, vulcanizing agent products in our catalog, or contact
our team for formulation guidance.

References

  • CAS Registry Number: 25155-25-3 — Di(tert-butylperoxyisopropyl)benzene
  • Do Sender Chem product data sheet: Perodox 14


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