Perodox® 187 - Diisobutyryl Peroxide

Diisobutyryl peroxide (C₈H₁₄O₄) is an organic peroxide compound used primarily as a free radical initiator in polymerization reactions. It is classified as a dialkyl peroxide and is widely utilized in the production of high K-value polyvinyl chloride (PVC) resins and other specialty polymers

The CAS registry number for Diisobutyryl Peroxide is 3437-84-1

Common synonyms include Isobutyryl peroxide, Diisobutyroyl peroxide, bisisobutyryl peroxide, Peroxide, bis(2-methyl-1-oxopropyl), Trigonox 187, and Peroyl IB

The molecular formula is C₈H₁₄O₄

The molecular weight is 174.2 g/mol

The density is 1.034 g/cm³ at 25°C

The boiling point is 199.3°C at 760 mmHg

The flash point is 75.1°C

The solubility in water is 49.1 g/L at 25°C

The vapor pressure is 0.344 mmHg at 25°C

Diisobutyryl peroxide may explode when dried at room temperature. When heated to decomposition, it emits acrid smoke and fumes. It is classified as an organic peroxide, Type B, with hazards including skin corrosion, skin sensitization, and eye irritation

Wear protective gloves, protective clothing, eye protection, and face protection. Use equipment for eye protection tested and approved under appropriate government standards. Handle with gloves and wear impervious clothing. Wear dust mask when handling large quantities

Wash off with soap and plenty of water. Take off immediately all contaminated clothing. Rinse skin with water or shower. Wash contaminated clothing before reuse. Consult a physician

Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. If eye irritation persists, get medical advice/attention

Diisobutyryl peroxide is not classified as flammable but may cause or intensify fire due to its oxidizing properties. It may ignite combustibles and can explode from heat, contamination, or loss of temperature control

The primary application is as a polymerization initiator in the production of high K-value PVC resins, which accounts for the majority of global demand

How is Diisobutyryl Peroxide used in PVC production?

Beyond PVC, it is used in ethylene polymerization, plexiglass production, specialty polymerizations, elastomer modifications, and certain cross-linking processes

Its ability to efficiently generate free radicals under controlled decomposition conditions makes it crucial for achieving desirable polymer characteristics such as molecular weight distribution, tensile strength, and thermal resistance in high K-value PVC

Major industries include construction materials, electrical insulation, consumer goods, automotive, industrial, and healthcare applications where specialty polymers with specific performance attributes are required

Store in a cool, well-ventilated environment, ensuring that the temperature remains below -20°C

When stored according to the manufacturer's recommendations, diisobutyryl peroxide can maintain its quality for up to three months

It is classified as UN 3115, Organic Peroxide, Type D, with hazard class 5.2. It is subject to temperature control in transport and is forbidden for rail and air transport. Road transport follows ADR 5.2 regulations, sea transport follows IMDG 5.2

Keep away from potential ignition sources, acids, flammable materials, and reducing agents. It should be stored separately from these incompatible materials

As standard, DIPB comes in 20 kg polyethylene drums, but customized packaging options are available depending on specific client requirements

Diisobutyryl peroxide is typically available in solution with concentrations up to 52%. Common commercial grades include 30% active oxygen content solutions

Key market players include Nouryon (under the Trigonox brand), NOF Corporation, and Shandong Do Sender Chemicals Co. Ltd.

The global Diisobutyryl Peroxide market is estimated to be valued in the range of USD 20-40 million for 2025, with expected growth at a CAGR of approximately 2.5%-4.5% from 2025 to 2030

Asia-Pacific is the largest consumer region, driven by robust PVC demand in China, India, and Southeast Asia. Europe and North America maintain steady demand profiles

he product must meet various international standards for organic peroxides, with specific quality parameters including active oxygen content, purity, and solution concentration

The refractive index is approximately 1.4220 (estimate)

The exact mass is 174.08920892 g/mol

The XLogP3-AA value is 2.3

The topological polar surface area is 52.6 Ų

It has 4 hydrogen bond acceptors

The GHS signal word is "Danger"

Precautionary statements include P210 (Keep away from heat, hot surfaces, sparks, open flames and other ignition sources), P234 (Keep only in original packaging), P235 (Keep cool), and P240 (Ground and bond container and receiving equipment)

For small fires, water spray or fog is preferred. For large fires, flood the fire area with water from a distance using water spray or fog. Avoid aiming straight or solid streams directly onto the product. Do not move cargo or vehicle if cargo has been exposed to heat

Isolate spill or leak area in all directions for at least 50 meters (150 feet) for liquids. For large spills, consider initial evacuation for at least 250 meters (800 feet) in all directions

Wear positive pressure self-contained breathing apparatus (SCBA). Structural firefighters' protective clothing provides thermal protection but only limited chemical protection

Yes, it serves as a cross-linking agent for rubber in addition to its primary function as a polymerization initiator

Beyond PVC, applications in specialty polymerizations offer growth opportunities potentially reaching 3%-5% CAGR, albeit from a low base

While alternative peroxides exist, substitutability is limited for high K-value PVC production due to the specialized role of Diisobutyryl Peroxide in achieving specific polymer characteristics

This would depend on regional regulations and specific migration testing. Users should verify compliance with applicable food contact regulations for their specific application.

Usage concentration varies by application but typically ranges from 0.01% to 1% based on the monomer weight, depending on the desired molecular weight and reaction conditions.

The temperature must be maintained at or below the "Control Temperature" at all times, which is typically -20°C as specified for storage

No, it must be stored in a cool, well-ventilated environment below -20°C to maintain stability and prevent decomposition

Polyethylene drums are standard packaging, typically in 20 kg sizes. The storage area should be equipped with explosion-proof lighting and ventilation [

For small spills, pick up with inert, damp, non-combustible material using clean, non-sparking tools and place into loosely covered plastic containers for later disposal. For large spills, dike far ahead of liquid spill for later disposal. Do not clean-up or dispose of, except under supervision of a specialist

The material can be disposed of by removal to a licensed chemical destruction plant or by controlled incineration with flue gas scrubbing. Do not contaminate water, foodstuffs, feed or seed by storage or disposal

Lead times typically range from 14-30 days, depending on quantity and destination

Certificate of Analysis (COA) is available after inquiry, along with safety data sheets and other required documentation

For a 30% solution, the active oxygen content is typically 2.75%

Alternative peroxides such as di(2-ethylhexyl) peroxydicarbonate can be used in some polymerization processes, but substitutability is limited for high K-value PVC production where Diisobutyryl Peroxide offers specific performance benefits

Prices are influenced by raw material costs, production scale, regional demand patterns, transportation costs, and regulatory compliance requirements. Market prices are typically negotiable based on volume and contract terms

The EINECS number is 222-340-0

While exact dates vary by manufacturer, organic peroxides like Diisobutyryl Peroxide have been used as polymerization initiators since the mid-20th century with commercial production expanding as PVC markets grew.

Yes, Diisobutyryl Peroxide is reported in the EPA TSCA Inventory

The IUPAC name is 2-methylpropanoyl 2-methylpropaneperoxoate

The HS code is 2915900090