• Perodox® 25 - tert-Butyl peroxypivalate

    CAS: 927-07-1

    High-efficiency low-temperature polymerization initiator for PVC, polyethylene, acrylic polymers, and specialty chemical applications.

  • Product Overview

    Perodox® 25,tert-Butyl peroxypivalate (TBPV) is an organic peroxide compound widely recognized as an efficient low-temperature free radical initiator for polymerization reactions. With its CAS registry number 927-07-1, this chemical is characterized as a colorless to pale yellow liquid that solidifies below -19°C and decomposes at approximately 70°C

    TBPV is insoluble in water and ethylene glycol but soluble in most organic solvents, making it particularly valuable in various industrial polymerization processes. Its relatively low decomposition temperature allows it to function effectively as an initiator at lower temperatures compared to many other peroxides, offering energy efficiency and control in polymerization processes.

    Commercial formulations are typically available at concentrations up to 75% in mineral spirits or other solvents to enhance safety and handling characteristics. The compound is classified as an organic peroxide (Type C) and requires specialized storage and handling procedures to ensure safety.

    CAS Number: 927-07-1

    TSCA Status:Listed on inventory

    EINECS/ELINCS No.:213-147-2

  • Applications

    High-purity formulations available for industrial polymerization processes with consistent batch-to-batch quality.

    Polymerization Initiator

    tert-Butyl peroxypivalate serves as a highly efficient initiator for free radical polymerization processes, particularly valued for its low-temperature activation characteristics

    Key Polymer Applications:

    • Polyvinyl Chloride (PVC): Suspension polymerization of vinyl chloride monomers
    • Polyethylene: Production of various polyethylene grades
    • Acrylic Polymers: Synthesis of acrylic resins and plastics
    • Styrene Polymers: Initiation of styrene polymerization

    Specialty Applications

    Beyond standard polymerization processes, TBPV finds utility in several specialty chemical applications

    Emerging Applications:
    • Coatings and Adhesives: Formulation of high-performance coatings and adhesive systems with enhanced thermal stability
    • Pharmaceutical Intermediates: Synthesis of complex molecules and active pharmaceutical ingredients (APIs)
    • Biopolymers: Development of biodegradable polymer materials
    • Chemical Blowing Agent: Initiation of chemical blowing processes in polymer foams

    Automotive Sector

    Production of high-performance polymers for automotive components, leveraging TBPV's efficiency in creating materials with superior thermal stability.

    Manufacture of specialty polymers for electronic applications where precise control over polymerization is critical.

    Development of advanced sealants and coatings that enhance durability and longevity of construction materials.

  • Technical Data

    Comprehensive technical specifications and performance characteristics of Perodox® 25

    Physical and Chemical Properties

    Molecular Formula:C9H18O3

    Molecular Weight:174.24 g/mol

    Appearance:Colorless liquid

    Density:0.854 g/cm³ 20°C

    Melting Point:-17°C

    Boiling Point:245.22°C (estimate)

    Flash Point:68-71°C

    Water Solubility:Insoluble

    Refractive Index:1.410

    Vapor Pressure:4.02 hPa

    LogP:3.17

    Safety Information

    Hazard Classification: Organic peroxides, Type C

    UN Number: UN 3113

    Hazard Statements:

    H242: Heating may cause a fire

    H315: Causes skin irritation

    H317: May cause an allergic skin reaction

    H335: May cause respiratory irritation

    Storage Temperature: -18°C to -1°C

    Handling and Storage Guidelines

    Storage Conditions

    tert-Butyl peroxypivalate should be stored in a deep-freeze box with a free-opening cover at -18°C to -1°C (0-30°F) in a well-ventilated and unheated area, isolated from other chemicals. It is typically shipped in 5-gallon polyethylene containers with vented caps and outer fiberboard covering, maintained at -18°C to -1°C (-0.4°C to 30.2°F)

    Fire Fighting Measures

    In case of fire, use water spray or fog; if water is not available, use dry chemical, CO₂ or regular foam. For large fires, flood the fire area with water from a distance. Do not use straight streams. Cool containers with flooding quantities of water until well after the fire is out. Be aware of possible container explosion

    Spill Management

    Absorb the spilled material with vermiculite or other noncombustible material. Then sweep up and place in a plastic container for disposal. It is burned in a shallow pit in a remote area by igniting with a long torch

  • Frequently Asked Questions

    Comprehensive FAQ section addressing common inquiries about tert-Butyl peroxypivalate

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