
Shandong Do Sender Chemicals Co.,Ltd.
- Organic Peroxide
- Hydroperoxides
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- Acyl Peroxides
- Ester Peroxides
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- 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® 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
What is tert-Butyl peroxypivalate?
tert-Butyl peroxypivalate (TBPV) is an organic peroxide compound with the CAS registry number 927-07-1. It is widely used as a free radical initiator for polymerization reactions, particularly valued for its effectiveness at low temperatures
What is the molecular formula of tert-Butyl peroxypivalate?
The molecular formula of tert-Butyl peroxypivalate is C9H18O3
What is the molecular weight of tert-Butyl peroxypivalate?
The molecular weight of tert-Butyl peroxypivalate is 174.24 g/mol
What does tert-Butyl peroxypivalate look like?
tert-Butyl peroxypivalate is a colorless liquid that may solidify below -19°C. Commercial formulations are often pale yellow liquids
What is the CAS number for tert-Butyl peroxypivalate?
The CAS registry number for tert-Butyl peroxypivalate is 927-07-1
What are the common synonyms for tert-Butyl peroxypivalate?
Common synonyms include Lupersol 11, Trigonox 25/75, Esperox 31M, Luperox 11, t-Butyl perpivalate, TBPV, and Perbutyl PV
What is the density of tert-Butyl peroxypivalate?
The density of tert-Butyl peroxypivalate is 0.854 g/cm³ at 20°C
What is the melting point of tert-Butyl peroxypivalate?
The melting point of tert-Butyl peroxypivalate is -17°C
What is the boiling point of tert-Butyl peroxypivalate?
The boiling point of tert-Butyl peroxypivalate is approximately 245.22°C (rough estimate)
Is tert-Butyl peroxypivalate soluble in water?
No, tert-Butyl peroxypivalate is insoluble in water and ethylene glycol, but it is soluble in most organic solvents
What is the primary use of tert-Butyl peroxypivalate?
The primary use of tert-Butyl peroxypivalate is as a polymerization initiator for various polymers including polyethylene, polyvinyl chloride (PVC), and acrylic polymers
How is tert-Butyl peroxypivalate used in PVC production?
In PVC production, tert-Butyl peroxypivalate is used as an initiator for the suspension polymerization of vinyl chloride monomers
Can tert-Butyl peroxypivalate be used for acrylic polymers?
Yes, tert-Butyl peroxypivalate is commonly used as a polymerization initiator to make acrylic polymers
What are some emerging applications of tert-Butyl peroxypivalate?
Emerging applications include use in coatings and adhesives, pharmaceutical intermediates, biopolymers, and as a chemical blowing agent for polymer foams
How is tert-Butyl peroxypivalate used in the automotive industry?
In the automotive industry, tert-Butyl peroxypivalate is used to produce high-performance polymers for components that require superior thermal stability
What role does tert-Butyl peroxypivalate play in electronics manufacturing?
In electronics manufacturing, tert-Butyl peroxypivalate is used to produce specialty polymers where precise control over polymerization is critical for electronic applications
Can tert-Butyl peroxypivalate be used in pharmaceutical applications?
Yes, tert-Butyl peroxypivalate finds application in the synthesis of complex molecules and active pharmaceutical ingredients (APIs), particularly in drug delivery systems
How is tert-Butyl peroxypivalate used in coatings?
tert-Butyl peroxypivalate facilitates the curing process in coatings at lower temperatures, allowing for formulation of high-performance coatings with enhanced thermal stability
What is the advantage of using tert-Butyl peroxypivalate as a polymerization initiator?
The main advantage is its effectiveness as a low-temperature initiator, which allows for energy-efficient polymerization processes and better control over the reaction
Can tert-Butyl peroxypivalate be used for biopolymer production?
Yes, tert-Butyl peroxypivalate plays a role in developing biodegradable polymer materials that align with sustainability goals
What are the major hazards associated with tert-Butyl peroxypivalate?
tert-Butyl peroxypivalate is flammable and a dangerous fire risk. Heating may cause explosion. It is shock-sensitive and detonable when pure
What is the UN number for tert-Butyl peroxypivalate?
The UN number for tert-Butyl peroxypivalate is UN 3113
How should tert-Butyl peroxypivalate be stored?
It should be stored in a deep-freeze box at -18°C to -1°C in a well-ventilated area, isolated from other chemicals
What personal protective equipment is recommended when handling tert-Butyl peroxypivalate?
Wear protective gloves, safety glasses, protective clothing, and positive pressure self-contained breathing apparatus (SCBA) when handling tert-Butyl peroxypivalate
What is the flash point of tert-Butyl peroxypivalate?
The flash point of tert-Butyl peroxypivalate is 68-71°C
What fire-fighting measures are recommended for tert-Butyl peroxypivalate?
For small fires, use water spray or fog; if water is not available, use dry chemical, CO₂ or regular foam. For large fires, flood the area with water from a distance
What is the acute oral toxicity of tert-Butyl peroxypivalate?
The acute oral toxicity (LD50) for rats is 4300 mg/kg
What are the first aid measures for tert-Butyl peroxypivalate exposure?
Move victim to fresh air, call for medical help, administer oxygen if breathing is difficult, remove contaminated clothing, and flush affected areas with water for at least 20 minutes
How should spills of tert-Butyl peroxypivalate be managed?
Absorb spills with vermiculite or other noncombustible material, sweep up, and place in a plastic container for disposal. Burn in a shallow pit in a remote area
What is the self-accelerating decomposition temperature of tert-Butyl peroxypivalate?
The self-accelerating decomposition temperature for the 75% concentrated solution is 29°C
What is the vapor pressure of tert-Butyl peroxypivalate?
The vapor pressure is 4.02 hPa at 38°C
What is the refractive index of tert-Butyl peroxypivalate?
The refractive index is 1.410 at 20°C
What is the LogP value of tert-Butyl peroxypivalate?
The LogP value is 3.17 at 25°C
At what temperature does tert-Butyl peroxypivalate decompose?
tert-Butyl peroxypivalate decomposes at approximately 70°C
What is the hazard classification of tert-Butyl peroxypivalate?
It is classified as Organic peroxides, Type C
What is the purity of commercially available tert-Butyl peroxypivalate?
Commercial formulations are typically available at concentrations up to 75% in mineral spirits, with some suppliers offering purities from 85% to 99.8%
What is the XLogP3 value of tert-Butyl peroxypivalate?
The XLogP3 value is approximately 2.30580
What is the exact mass of tert-Butyl peroxypivalate?
The exact mass is 174.125594432 g/mol
What is the topological polar surface area of tert-Butyl peroxypivalate?
The topological polar surface area is 35.5 Ų
How is the quality of tert-Butyl peroxypivalate typically analyzed?
Gas chromatography is commonly used for analysis, with specific conditions including Silicon SE-30 as stationary phase, 80°C column temperature, and naphthalene pentane as internal standard
What is the global market trend for tert-Butyl peroxypivalate?
The global demand for tert-Butyl peroxypivalate is increasing, driven by its versatility as a polymerization initiator and growing applications in sustainable material production
Which regions are major consumers of tert-Butyl peroxypivalate?
North America, Europe, and the Asia-Pacific region are major consumers, with significant growth in countries like China and India
How do regulatory frameworks impact the tert-Butyl peroxypivalate market?
Stringent regulations like EU's REACH influence market dynamics by requiring comprehensive safety assessments, which can affect supply but also drive innovation in safer formulations
What is the price range for tert-Butyl peroxypivalate?
Prices vary based on purity and quantity, with examples ranging from $1.00 per gram for high purity lab quantities to $1000 per metric ton for industrial quantities
What packaging options are available for tert-Butyl peroxypivalate?
It is available in various packaging options including 1kg bags, 25kg bags, 200kg drums, and custom packaging to meet specific requirements
How is tert-Butyl peroxypivalate typically shipped?
It is shipped in temperature-controlled containers, typically maintained at -18°C to -1°C, with vented caps and outer protective packaging
What are the key industries driving demand for tert-Butyl peroxypivalate?
Key industries include plastics and polymers, automotive, electronics, construction, and pharmaceuticals
How does sustainability trend affect tert-Butyl peroxypivalate production?
Sustainability trends are driving innovation in bio-based feedstocks, energy-efficient manufacturing, and waste reduction in TBPV production
What is the lead time for tert-Butyl peroxypivalate orders?
Lead times vary by supplier but average around 7 days for standard orders, with expedited shipping available for urgent requirements
Are there any alternatives to tert-Butyl peroxypivalate?
While other organic peroxides exist as alternatives, tert-Butyl peroxypivalate is often preferred for its specific low-temperature initiation properties and efficiency in certain polymerization processes
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