• Tert-Butyl peroxy-2-ethylhexanoate - Perodox® 21

    CAS: 3006-82-4 | TBPEH

    Efficient initiator for LDPE production with 7.40% active oxygen content for tubular and autoclave processes

  • Product Overview

    Perodox® 21 (TBPEH) is an efficient initiator for Low Density Polyethylene (LDPE) production.

    TBPEH is an efficient initiator for the production of Low Density Polyethylene (LDPE). It is used both for tubular and autoclave processes. In most cases a combination with other peroxides is used to ensure a broad reactivity range. In suspension polymerization processes, TBPEH can be used for the polymerization of styrene at approximately 90°C. TBPEH has an activity comparable with Dibenzoyl peroxide (BPO75).

    CAS Number:3006-82-4

    Chemical Formula:C12H24O3

    Molecular Weight:216.32 g/mol

    Active Oxygen Content:7.40%

    Density at 20°C:0.89 g/cm³

    Boiling Point:248.9±23.0 °C (Predicted)

    Melting Point:-30°C [1,4]

    Flash Point:85°C [1,4]

  • Tert-Butyl peroxy-2-ethylhexanoate Applications

    Perodox® 21 is widely used in various polymerization processes

    LDPE Production

    Efficient initiator for Low Density Polyethylene production in both tubular and autoclave processes

    Styrene Polymerization

    Suspension polymerization of styrene at approximately 90°C with controlled initiation

    Acrylic Polymerization

    nitiator for acrylic and methacrylic ester polymerization with temperature range of 100-170°C

    Thermoset Composites

    Crosslinking agent for unsaturated polyester resins in high-temperature curing applications

    Rubber Industry

    Vulcanizing agent for silicone rubber and other elastomers requiring peroxide curing systems

    Coatings Production

    Initiator for various coating formulations requiring controlled free-radical polymerization

  • Tert-Butyl peroxy-2-ethylhexanoate Technical Data

    Comprehensive technical specifications and performance characteristics of Perodox® 21

    Thermal Decomposition

    10-hour half-life temperature: 73°C

    1-hour half-life temperature: 91°C

    0.1-hour half-life temperature: 113°C

    Physical Properties

    Water Solubility: 46.3 mg/L at 20°C

    Vapor Pressure: 2 Pa at 20°C

    Refractive Index: 1.429

    Chemical Properties

    Acidity (pKa): -4.8 at 20°C

    Activation Energy (Ea): 124.90 kJ/mole

    LogP: 3.476 at 20°C [4]

    Packaging & Storage

    Packaging: 20 kg polyethylene drums

    Storage Temperature: -30°C to 10°C

    Shelf Life: 3 months under proper conditions

  • Tert-Butyl peroxy-2-ethylhexanoate Safety & Storage

    Proper handling and storage procedures for Perodox® 21 (TBPEH)

    Storage Conditions

    Maximum Temperature: 10°C

    Minimum Temperature: -30°C to prevent crystallization [1,8]

    When stored under recommended storage conditions, Perodox 21 maintains specifications for a period of at least 3 months after delivery

    Thermal Stability (SADT)

    Self-Accelerating Decomposition Temperature (SADT): 35°C

    The SADT is determined on the basis of the Heat Accumulation Storage Test, which is a recognized test method for organic peroxides according to UN Recommendations on the Transport of Dangerous Goods

    Handling Precautions

    Use appropriate personal protective equipment (PPE)

    Avoid contact with skin, eyes, and clothing

    Ensure adequate ventilation in working areas

    Keep away from heat, sparks, open flames, and hot surfaces

    Do not eat, drink, or smoke when handling this product

    Transport Information

    UN Number: 3113

    Proper Shipping Name: ORGANIC PEROXIDE TYPE D, LIQUID, TEMPERATURE CONTROLLED

    Transport Hazard Class: 5.2

    Packing Group: II

  • Tert-Butyl peroxy-2-ethylhexanoate Frequently Asked Questions

    Comprehensive questions and answers about TBPEH applications, safety, and technical specifications

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