• Cumyl peroxyneodecanoate - Perodox® 99

    CAS: 26748-47-0

    High-Efficiency Polymerization Initiator for LDPE and PVC Production

  • Product Overview

    Cumyl peroxyneodecanoate (CPND) is an organic peroxide widely used as a highly efficient initiator (radical source) for polymerization processes. It appears as a milky white emulsion or clear liquid, typically supplied as a 75% solution in odorless mineral spirits or isododecane. With its high activity and non-oxidizing properties, CPND enables constant rate polymerization over entire reaction periods when combined with thermally more stable peroxides.

    CAS Number:26748-47-0

    TSCA Status:Listed on inventory

    EINECS/ELINCS No.:247-956-7

    Molecular Weight:306.4

    Active Oxygen:5.22%

    Purity:74.0-76.0 %

    Appearance:Clear liquid

    CPND offers particular advantages including being liquid (therefore easy to dose), non-oxidizing, and having high activity. It is especially effective for bulk or suspension polymerization of monomers, particularly vinyl chloride.

  • Cumyl peroxyneodecanoate Applications

    Cumyl peroxyneodecanoate (Perodox® 99) serves as a critical component in various industrial polymerization processes,

    with its primary applications in plastic manufacturing

    LDPE Polymerization of Ethylene

    CPND is an efficient initiator for ethylene polymerization under high pressure in both autoclave and tubular processes. To obtain a wide spectrum of polymerization temperatures, combinations with other peroxides are applied in practice. Depending on reaction conditions, CPND is active in the temperature range of 130-170°C

    PVC Manufacturing

    CPND is used as an initiator for the suspension and mass polymerization of vinyl chloride between 40°C and 65°C. It is often combined with less active peroxides such as peroxydicarbonates or diacylperoxides to increase reactor efficiency.

    Other Applications

    Beyond its primary uses, CPND finds applications in coatings, adhesives, and composites where its properties as a radical initiator are beneficial. The automotive sector utilizes CPND in the curing of resins and composites for lightweight component production.

  • Cumyl peroxyneodecanoate Technical Data

    Comprehensive technical specifications and performance characteristics of Perodox® 99

    Properties

    Appearance:Clear liquid or milky white emulsion

    Assay:75.0±1.0%

    Molecular Formula:C19H30O3

    Molecular Weight:306.4 g/mol

    Density at -10°C:962 kg/m³

    Viscosity at -10°C:74.6 mPa.s

    Flash Point:108.1°C

    Boiling Point:375°C

    Half-Life Data

    The reactivity of organic peroxides is typically indicated by their half-life (t1/2) at various temperatures. For CPND in chlorobenzene:

    Half-Life Temperature

    0.1 hour 75°C

    1 hour 56°C

    10 hours 38°C

    Packaging Information

    Standard packaging is a 30-liter HDPE can for 25 kg peroxide solution. Both packaging and transport meet international regulations.

  • Cumyl peroxyneodecanoate Safety & Storage

    Proper handling and storage procedures for Perodox® 99

    Storage Precautions

    Store in a cool and ventilated space with the warehouse temperature not exceeding -20°C

    Stay away from fire and heat sources

    Should be stored separately from acids, inflammables, combustibles, and reducing agents

    The lighting and ventilation facilities in the storage room should be explosion-proof

    Handling should be performed with care to prevent damage to packaging and containers

    Fire Protection Measures

    This product may decompose violently due to heat and can catch fire. A small number of products should be quickly extinguished with foam or dry powder fire extinguisher. The fire should be addressed from a safe distance using a water gun, and the fire department should be notified

    Emergency Temperature Guidelines

    Maximum Storage Temperature (Ts max) -20°C

    Minimum Storage Temperature (Ts min) -30°C

    Self-Accelerating Decomposition Temperature (SADT) 10°C

    Emergency Temperature 0°C

    Controlling Temperature -10°C

    Transportation Regulations

    Cumyl peroxyneodecanoate is classified as Organic peroxide type D; liquid, temperature controlled; Division 5.2; UN 3115; PG II. Rail (RID) and air (ICAO-TI/IATA-DGR) transport are forbidden.

    Decomposition Products

    Carbon dioxide, 2-Phenylisopropanol, Isomers of neonane

  • Cumyl peroxyneodecanoate Frequently Asked Questions

    Comprehensive questions and answers about Perodox® 99 applications, safety, and technical specifications

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