• Perodox® PF - tert-Butyl monoperoxymaleate

    CAS: 1931-62-0

    An initiator for polymerization reactions and a curing agent for various resins

  • Product Overview

    Perodox® PF,tert-Butyl monoperoxymaleate (CAS 1931-62-0) is an organic peroxide compound widely used as an initiator for polymerization reactions and a curing agent for various resins. This peroxymaleate derivative is commercially available as a white paste formulation with concentrations typically around 40% in dibutyl maleate or other phlegmatizers to ensure safe handling and storage.

    In polymerization processes, tert-butyl monoperoxymaleate decomposes to generate free radicals that initiate chain growth. The compound's half-life characteristics make it suitable for processes requiring specific temperature profiles. At 95°C, it has a half-life of 10 hours, at 117°C the half-life is 1 hour, and at 142°C the half-life reduces to 0.1 hour.

    For acrylic solid surface applications, tert-butyl monoperoxymaleate is typically used in combination with accelerators to achieve room temperature curing. This application is particularly valued in the manufacturing of kitchen countertops, bathroom fixtures, and other architectural elements where color stability is crucial.

    CAS Number: 1931-62-0

    TSCA Status:Listed on inventory

    EINECS/ELINCS No.:217-691-1

    Molecular Weight: 188.2 g/mol

  • Applications

    tert-Butyl monoperoxymaleate serves as a versatile initiator and curing agent in various industrial processes, particularly in polymer chemistry and materials science. Its unique reactivity profile makes it suitable for applications requiring controlled polymerization and crosslinking at moderate temperatures

    Polymerization Initiator

    Used as an initiator for acrylic acid or acrylic acid-containing monomers

    Resin Curing Agent

    Functions as a curing agent for unsaturated polyester resins and silicone rubber

    Acrylic Solid Surface Curing

    Enables room temperature curing of acrylic solid surfaces without yellow discoloration

    Material Science

    Applied in advanced material science research and specialty chemical formulations

  • Technical Data

    Comprehensive technical specifications for Perodox®PF tert-Butyl monoperoxymaleate

    Physical and Chemical Properties

    CAS Registry Number:1931-62-0

    Molecular Formula:C₈H₁₂O₅

    Molecular Weight:188.18 g/mol

    Appearance:White paste or viscous liquid

    Active Oxygen Content:3.31-3.57% (for 40% formulation)

    Melting Point (pure):130-131°C

    Boiling Point:260.8°C at 760 mmHg

    Flash Point:>60°C

    Density:1.185 g/cm³ (20°C)

    Refractive Index:1.469

    Commercial Specifications (Typical 40% Formulation)

    Assay (tert-butyl monoperoxymaleate) 39.0-42.0%

    Active Oxygen 3.35-3.49%

    Dibutyl Maleate Content 45.0-50.0%

    TBHP Content Max. 0.10%

    Safety Data

    UN Number:3108

    Hazard Class:Organic Peroxide

    Storage Temperature Below:25°C

    Self-Accelerating Decomposition Temperature (SADT):60°C

    Alarm Temperature:55°C

    Half-Life Characteristics

    95°C:10 hours

    117°C:1 hour

    142°C:0.1 hour (6 minutes)

  • Frequently Asked Questions

    Find answers to common questions about Perodox® PF, tert-Butyl monoperoxymaleate below.

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