
Shandong Do Sender Chemicals Co.,Ltd.
- Organic Peroxide
- Hydroperoxides
- Ketone Peroxides
- Alkyl Peroxides
- Acyl Peroxides
- Ester Peroxides
- …
- Organic Peroxide
- Hydroperoxides
- Ketone Peroxides
- Alkyl Peroxides
- Acyl Peroxides
- Ester Peroxides
Shandong Do Sender Chemicals Co.,Ltd.
- Organic Peroxide
- Hydroperoxides
- Ketone Peroxides
- Alkyl Peroxides
- Acyl Peroxides
- Ester Peroxides
- …
- Organic Peroxide
- Hydroperoxides
- Ketone Peroxides
- Alkyl Peroxides
- Acyl Peroxides
- Ester Peroxides

Perodox® K - Cumyl Hydroperoxide
CAS: 80-15-9 Cumyl Hydroperoxide (CHP) - Versatile polymerization initiator for acrylics, styrene, and polyester resins
Product Overview
Perodox K is an initiator (80-90% active ingredient in aromatic solvent mixture) for (co)polymerization of (meth)acrylates. It can be used in emulsion, solution and bulk polymerizations with effective temperature range of 50-200°C.
CAS Number:80-15-9
TSCA Status:Listed on inventory
EINECS/ELINCS No.:210-254-7
Molecular Weight:152.2 g/mol
Active Ingredient:80-90% Cumyl Hydroperoxide
Appearance:Clear liquid
Density at 20°C:1.040 g/cm³
Viscosity at 20°C:5 mPa.s
Applications
Perodox® K is widely used in various polymerization processes across multiple industries
Polymer Production
Cumyl Hydroperoxide as initiator for polymerization of styrene, methyl methacrylate, and other vinyl monomers in bulk processes
Emulsion Polymerization
CHP effective in emulsion processes with organic-soluble or water-soluble reducing agents for low-temperature polymerization
Solution Polymerization
Cumyl Hydroperoxide suitable for solution polymerization processes with precise control over reaction kinetics
Thermoset Resins
CHP as initiator for room temperature cure of promoted unsaturated polyester and vinyl ester resins
Acrylics Production
Cumyl Hydroperoxide primary initiator for (meth)acrylate polymerization with controlled molecular weight distribution
Industrial Processes
Versatile CHP initiator compatible with various industrial polymerization setups and conditions
Technical Data
Comprehensive technical specifications and performance characteristics of Perodox® K
Effective Temperature Range
50-200°C - Wide operational range for various polymerization processes
Polymerization Methods
Emulsion, solution, and bulk polymerization with various vinyl monomers
Thermal Stability (SADT)
60°C - Self-Accelerating Decomposition Temperature
Packaging Options
Available in 1000kg, 200kg, and 25kg plastic drums
Safety & Storage
Proper handling and storage procedures for Perodox® K(CHP)
Storage Conditions
Maximum Temperature: 25°C
When stored under recommended conditions, Cumyl Hydroperoxide will remain within specifications for at least 9 months after delivery.
Transport Classification
Classified as:
Organic peroxide type F
Liquid, Division 5.2
UN 3109
Decomposition Products
Major decomposition products include:
Acetophenone,Phenylisopropanol,Methane,Water
Thermal Stability
Cumyl Hydroperoxide are thermally unstable substances which may undergo self-accelerating decomposition. The SADT is determined based on the Heat Accumulation Storage Test according to UN recommendations.
Frequently Asked Questions
Common questions about Perodox® K Cumyl Hydroperoxide
What is Cumyl Hydroperoxide (CHP) used for?
Cumyl Hydroperoxide (CHP) is primarily used as a polymerization initiator for acrylics, styrene, and polyester resins. It's effective in emulsion, solution, and bulk polymerization processes.
What is the active ingredient concentration in Perodox K80?
Perodox K80 contains 80% Cumyl Hydroperoxide as the active ingredient in an aromatic solvent mixture.
What temperature range is effective for CHP polymerization?
CHP is effective in the temperature range of 50-200°C. With accelerators, it can initiate polymerization at room temperature or lower.
How should Cumyl Hydroperoxide be stored?
Store at temperatures ≤25°C. Under proper conditions, Perodox K80 maintains specifications for at least 9 months after delivery.
What are the major decomposition products of CHP?
Major decomposition products include acetophenone, phenylisopropanol, methane, and water.
What is the SADT for Perodox K80?
The Self-Accelerating Decomposition Temperature (SADT) for Perodox K80 is 60°C.
What polymerization methods is CHP suitable for?
CHP is suitable for emulsion, solution, and bulk polymerization processes for various vinyl monomers.
How is Perodox K80 packaged?
Available in plastic drums with specifications of 1000kg, 200kg, and 25kg.
What is the transportation classification for CHP?
Classified as Organic peroxide type F; liquid, Division 5.2; UN 3109.
How does CHP compare to other peroxide initiators?
CHP offers versatility across a wide temperature range (50-200°C) and compatibility with various polymerization methods and reducing agents.
What is the shelf life of Perodox K80 under proper storage conditions?
When stored at temperatures ≤25°C, Perodox K80 maintains its specifications for at least 9 months after delivery.
What safety precautions should be taken when handling Cumyl Hydroperoxide?
Avoid heat sources, open flames, and direct sunlight. Use appropriate personal protective equipment including safety goggles and chemical-resistant gloves. Ensure adequate ventilation in the working area.
Can Cumyl Hydroperoxide be used for food contact applications?
Standard Cumyl Hydroperoxide is not specifically formulated for food contact applications. For such applications, consult the manufacturer for appropriate grades and certifications.
What is the typical dosage of CHP in polymerization processes?
The typical dosage of CHP varies from 0.1% to 2.0% based on monomer weight, depending on the specific polymerization process, temperature, and desired molecular weight.
What are the compatibility considerations for CHP with other chemicals?
CHP is incompatible with strong reducing agents, strong acids, and strong bases. Avoid contact with metals like iron, copper, and their salts which can catalyze decomposition.
How does temperature affect the half-life of Cumyl Hydroperoxide?
The half-life of CHP decreases exponentially with increasing temperature. At 100°C, the half-life is approximately 10 hours, while at 130°C it reduces to about 1 hour.
What industries commonly use Cumyl Hydroperoxide?
Cumyl Hydroperoxide is used in polymer production, coatings, adhesives, composite materials, and specialty chemical manufacturing.
What is the difference between CHP and MEKP as polymerization initiators?
CHP operates at higher temperatures (50-200°C) and is more versatile across polymerization methods, while MEKP is typically used for room-temperature curing of polyester resins with cobalt accelerators.
What personal protective equipment is required when handling CHP?
Required PPE includes safety goggles, chemical-resistant gloves, protective clothing, and proper ventilation or respiratory protection in case of inadequate ventilation.
Can Perodox K80 be customized for specific application requirements?
Yes, Shandong Do Sender Chemicals can provide customized formulations of Cumyl Hydroperoxide with adjusted concentrations and solvent systems to meet specific application requirements.
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