
Shandong Do Sender Chemicals Co.,Ltd.
- Organic Peroxide
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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® 121 - tert-Amyl peroxy-2-ethylhexanoate
CAS: 686-31-7
A free radical initiator in polymerization processes.
Product Overview
Perodox® 121, tert-Amyl peroxy-2-ethylhexanoate (CAS 686-31-7) is an organic peroxide compound widely used as a free radical initiator in polymerization processes. It appears as a colorless to pale yellow liquid with limited water solubility but good solubility in common organic solvents. This compound is known for its effectiveness as a high-temperature curing agent and polymerization initiator, particularly in the production of various polymers and resins.
This compound is thermally sensitive and may decompose violently when exposed to heat, shock, or friction. Proper handling and storage procedures must be strictly followed to ensure safety. It is commercially available in various purity grades and is typically packaged in temperature-controlled containers to maintain stability during transport and storage.
CAS Number: 686-31-7
TSCA Status:Listed on inventory
EINECS/ELINCS No.:211-687-3
Molecular Weight: 230.34 g/mol
Molecular Formula: C13H26O3
Applications
tert-Amyl peroxy-2-ethylhexanoate serves as a crucial component in various industrial processes, primarily functioning as a free radical initiator. Its thermal decomposition properties make it particularly valuable in polymerization reactions and resin curing applications.
Polymerization Initiator
Widely used as an initiator for the polymerization of vinyl monomers, including acrylates, methacrylates, styrene, and acrylonitrile. It facilitates the production of various polymers with controlled molecular weights and properties.
High-Temperature Curing Agent
Functions as an effective high-temperature curing agent for unsaturated polyester resins and vinyl ester resins, with an optimal curing temperature range of 120-160°C. This application is particularly valuable in hot-press molding techniques.
Production of EVA Copolymers
Plays a significant role in the production of ethylene-vinyl acetate (EVA) copolymers, contributing to the manufacturing of materials with specific elasticity and durability characteristics.
Thermoset Plastics and Elastomers
Utilized in the production of thermoset plastics and elastomers, where it initiates cross-linking reactions that result in materials with enhanced thermal stability and mechanical properties.
Composite Materials
Essential in the manufacturing of composite materials, where it promotes the curing process that binds reinforcing fibers with polymer matrices, creating strong, lightweight materials for various applications.
Coatings and Adhesives
Used in formulations for specialty coatings and adhesives, where it initiates polymerization reactions that result in durable, protective surfaces and strong bonding capabilities.
Technical Data
Comprehensive technical specifications and performance characteristics of Perodox® 121
Physical and Chemical Properties
Molecular Weight:230.34 g/mol
Density:0.9075 g/cm³
Refractive Index:1.432
Boiling Point:68°C
Melting Point:-62°C
Vapor Pressure:0.00442 mmHg
Water Solubility:17.6 mg/L
Flash Point:112.8°C
LogP:3.87
Half-Life Data
Half-Life Period Temperature
0.1 hour:111°C
1 hour:91°C
10 hours:73°C
Safety Data
GHS Signal Word:Danger
Hazard Statements:H242: Heating may cause a fire
Precautionary Statements:P210, P220, P234, P261, P272, P280
Storage Temperature:Below 10°C (50°F)
Transport Classification:UN 3115, Hazard Class 5.2, Packing Group II
Frequently Asked Questions
Comprehensive FAQ section addressing common inquiries about tert-Amyl peroxy-2-ethylhexanoate (CAS 686-31-7).
What is the chemical formula of tert-Amyl peroxy-2-ethylhexanoate?
The chemical formula of tert-Amyl peroxy-2-ethylhexanoate is C13H26O3.
What is the molecular weight of tert-Amyl peroxy-2-ethylhexanoate?
The molecular weight of tert-Amyl peroxy-2-ethylhexanoate is 230.34 g/mol.
What is the IUPAC name for CAS 686-31-7?
The IUPAC name for CAS 686-31-7 is 2-methylbutan-2-yl 2-ethylhexaneperoxoate.
What are the main applications of tert-Amyl peroxy-2-ethylhexanoate?
tert-Amyl peroxy-2-ethylhexanoate is primarily used as a free radical initiator in polymerization processes for vinyl monomers, as a high-temperature curing agent for unsaturated polyesters, and in the production of EVA copolymers.
What is the appearance of tert-Amyl peroxy-2-ethylhexanoate?
tert-Amyl peroxy-2-ethylhexanoate appears as a colorless to pale yellow liquid with a characteristic odor.
What is the density of tert-Amyl peroxy-2-ethylhexanoate?
The density of tert-Amyl peroxy-2-ethylhexanoate is 0.9075 g/cm³ at 20°C.
What is the boiling point of tert-Amyl peroxy-2-ethylhexanoate?
The boiling point of tert-Amyl peroxy-2-ethylhexanoate is 68°C at 0.5 Torr pressure.
What is the melting point of tert-Amyl peroxy-2-ethylhexanoate?
The melting point of tert-Amyl peroxy-2-ethylhexanoate is -62°C.
Is tert-Amyl peroxy-2-ethylhexanoate soluble in water?
tert-Amyl peroxy-2-ethylhexanoate is insoluble in water, with a solubility of 17.6 mg/L at 20°C, but it is soluble in common organic solvents.
What are the storage requirements for tert-Amyl peroxy-2-ethylhexanoate?
tert-Amyl peroxy-2-ethylhexanoate must be stored below 10°C (50°F) in a cool, well-ventilated area, away from heat sources and incompatible materials.
What is the vapor pressure of tert-Amyl peroxy-2-ethylhexanoate?
The vapor pressure of tert-Amyl peroxy-2-ethylhexanoate is 0.00442 mmHg at 25°C.
What is the flash point of tert-Amyl peroxy-2-ethylhexanoate?
The flash point of tert-Amyl peroxy-2-ethylhexanoate is 112.8°C.
What is the refractive index of tert-Amyl peroxy-2-ethylhexanoate?
The refractive index of tert-Amyl peroxy-2-ethylhexanoate is 1.432 at 20°C.
What are the hazards associated with tert-Amyl peroxy-2-ethylhexanoate?
tert-Amyl peroxy-2-ethylhexanoate may explode if exposed to heat, shock, or friction. It is classified as an organic peroxide (Hazard Class 5.2) and can cause fires.
What is the UN number for transporting tert-Amyl peroxy-2-ethylhexanoate?
The UN number for transporting tert-Amyl peroxy-2-ethylhexanoate is UN 3115.
What is the hazard class for tert-Amyl peroxy-2-ethylhexanoate?
tert-Amyl peroxy-2-ethylhexanoate is classified under Hazard Class 5.2 (Organic Peroxide) for transportation
What is the packing group for tert-Amyl peroxy-2-ethylhexanoate?
tert-Amyl peroxy-2-ethylhexanoate falls under Packing Group II for transportation.
What are the half-life temperatures for tert-Amyl peroxy-2-ethylhexanoate?
The half-life temperatures are: 0.1 hour at 111°C, 1 hour at 91°C, and 10 hours at 73°C.
What is the optimal curing temperature range for tert-Amyl peroxy-2-ethylhexanoate?
The optimal curing temperature range for tert-Amyl peroxy-2-ethylhexanoate is 120-160°C.
What personal protective equipment is recommended when handling tert-Amyl peroxy-2-ethylhexanoate?
Recommended PPE includes protective gloves, clothing, goggles, and positive pressure self-contained breathing apparatus.
What is the GHS classification for tert-Amyl peroxy-2-ethylhexanoate?
The GHS classification includes the signal word "Danger" and hazard statement H242: "Heating may cause a fire."
What is the water solubility of tert-Amyl peroxy-2-ethylhexanoate?
The water solubility of tert-Amyl peroxy-2-ethylhexanoate is 17.6 mg/L at 20°C.
What is the exact mass of tert-Amyl peroxy-2-ethylhexanoate?
The exact mass of tert-Amyl peroxy-2-ethylhexanoate is 230.188195 g/mol.
What is the topological polar surface area of tert-Amyl peroxy-2-ethylhexanoate?
The topological polar surface area of tert-Amyl peroxy-2-ethylhexanoate is 35.5 Ų.
How should spills of tert-Amyl peroxy-2-ethylhexanoate be handled?
Spills should be handled by eliminating ignition sources, using inert damp non-combustible material for containment, and consulting a specialist for cleanup.
What is the standard packaging for tert-Amyl peroxy-2-ethylhexanoate?
The standard packaging is 20 kg polyethylene drums, with temperature-controlled containers for transport.
What is the shelf life of tert-Amyl peroxy-2-ethylhexanoate?
When stored properly, tert-Amyl peroxy-2-ethylhexanoate has a shelf life of up to three months.
What polymers can be initiated using tert-Amyl peroxy-2-ethylhexanoate?
It can initiate polymerization of acrylates, methacrylates, styrene, acrylonitrile, and is used in EVA copolymer production.
What are the first aid measures for eye contact with tert-Amyl peroxy-2-ethylhexanoate?
For eye contact, immediately flush with running water for at least 20 minutes and seek medical attention.
What are the fire fighting measures for tert-Amyl peroxy-2-ethylhexanoate fires?
Use water spray or fog for small fires; flood fire area with water from a distance for large fires. Do not use straight streams.
What is the heat of vaporization of tert-Amyl peroxy-2-ethylhexanoate?
The heat of vaporization of tert-Amyl peroxy-2-ethylhexanoate is 51.64 kJ/mol.
What is the surface tension of tert-Amyl peroxy-2-ethylhexanoate?
The surface tension of tert-Amyl peroxy-2-ethylhexanoate is 29.6 dyne/cm.
What is the molar volume of tert-Amyl peroxy-2-ethylhexanoate?
The molar volume of tert-Amyl peroxy-2-ethylhexanoate is 259.7 cm³.
What is the molar refractivity of tert-Amyl peroxy-2-ethylhexanoate?
The molar refractivity of tert-Amyl peroxy-2-ethylhexanoate is 67.46 cm³.
What is the heavy atom count of tert-Amyl peroxy-2-ethylhexanoate?
The heavy atom count of tert-Amyl peroxy-2-ethylhexanoate is 16.
What is the complexity value of tert-Amyl peroxy-2-ethylhexanoate?
The complexity value of tert-Amyl peroxy-2-ethylhexanoate is 199.
What is the XLogP3 value of tert-Amyl peroxy-2-ethylhexanoate?
The XLogP3 value of tert-Amyl peroxy-2-ethylhexanoate is 3.87.
What is the hydrogen bond acceptor count for tert-Amyl peroxy-2-ethylhexanoate?
The hydrogen bond acceptor count for tert-Amyl peroxy-2-ethylhexanoate is 3.
What is the rotatable bond count for tert-Amyl peroxy-2-ethylhexanoate?
The rotatable bond count for tert-Amyl peroxy-2-ethylhexanoate is 9.
What are the synonyms for tert-Amyl peroxy-2-ethylhexanoate?
Synonyms include t-Amylperoxy 2-ethylhexanoate, Hexaneperoxoic acid 2-ethyl- 1,1-dimethylpropyl ester, Trigonox 121, and Lupersol 575,Perodox 121
What is the InChI key for tert-Amyl peroxy-2-ethylhexanoate?
The InChI key for tert-Amyl peroxy-2-ethylhexanoate is IFXDUNDBQDXPQZ-UHFFFAOYSA-N.
What is the SMILES notation for tert-Amyl peroxy-2-ethylhexanoate?
The SMILES notation for tert-Amyl peroxy-2-ethylhexanoate is CCOOC(CCCC)C(=O)OOC(C)(C)CC.
What is the RTECS number for tert-Amyl peroxy-2-ethylhexanoate?
The RTECS number for tert-Amyl peroxy-2-ethylhexanoate is SE0540000.
What is the Beilstein/Gmelin number for tert-Amyl peroxy-2-ethylhexanoate?
The Beilstein/Gmelin number for tert-Amyl peroxy-2-ethylhexanoate is 1866031.
What is the EPA Substance Registry System information for tert-Amyl peroxy-2-ethylhexanoate?
The EPA Substance Registry System identifies it as Hexaneperoxoic acid, 2-ethyl-, 1,1-dimethylpropyl ester.
What is the odor of tert-Amyl peroxy-2-ethylhexanoate?
tert-Amyl peroxy-2-ethylhexanoate has a characteristic faint, sweet odor.
What is the vapor density of tert-Amyl peroxy-2-ethylhexanoate?
The vapor density of tert-Amyl peroxy-2-ethylhexanoate is 7.9 (air=1).
What is the partition coefficient (LogP) of tert-Amyl peroxy-2-ethylhexanoate?
The partition coefficient (LogP) of tert-Amyl peroxy-2-ethylhexanoate is 4.56 at 25°C.
Is tert-Amyl peroxy-2-ethylhexanoate explosive?
Yes, tert-Amyl peroxy-2-ethylhexanoate may explode if exposed to heat, shock, or friction, and the pure form is shock-sensitive and detonable.
What is the temperature control requirement for transporting tert-Amyl peroxy-2-ethylhexanoate?
Transport requires temperature-controlled containers to maintain the substance at or below the control temperature at all times.
What is the solubility of tert-Amyl peroxy-2-ethylhexanoate in organic solvents?
tert-Amyl peroxy-2-ethylhexanoate is soluble in common organic solvents, including saturated hydrocarbons and aromatic hydrocarbons.
What is the technical purity form of tert-Amyl peroxy-2-ethylhexanoate used for?
The technically pure form is used in industrial applications where high purity is not critical, such as in polymer production.
What is the price range for tert-Amyl peroxy-2-ethylhexanoate?
Prices vary by supplier and quantity
Which countries are major suppliers of tert-Amyl peroxy-2-ethylhexanoate?
China is a major supplier, with companies like Do Sender Chem
What is the minimum order quantity for tert-Amyl peroxy-2-ethylhexanoate?
Minimum order quantities vary by supplier, ranging from 1 kilogram to 20 metric tons.
What is the validity period of tert-Amyl peroxy-2-ethylhexanoate?
When stored according to manufacturer guidelines, tert-Amyl peroxy-2-ethylhexanoate remains stable for up to three months.
What are the incompatible materials for tert-Amyl peroxy-2-ethylhexanoate?
Incompatible materials include strong acids, strong bases, strong reducing agents, and flammable substances.
What is the first aid measure for inhalation of tert-Amyl peroxy-2-ethylhexanoate?
For inhalation, move victim to fresh air, apply artificial respiration if not breathing, and administer oxygen if breathing is difficult.
What is the first aid measure for skin contact with tert-Amyl peroxy-2-ethylhexanoate?
For skin contact, remove contaminated clothing and immediately flush skin with running water for at least 20 minutes.
What is the first aid measure for ingestion of tert-Amyl peroxy-2-ethylhexanoate?
For ingestion, do not induce vomiting and seek immediate medical assistance.
What is the isolation distance for spills of tert-Amyl peroxy-2-ethylhexanoate?
For spills, isolate the area in all directions for at least 50 meters for liquids and consider evacuation for at least 250 meters.
What fire suppression methods are recommended for tert-Amyl peroxy-2-ethylhexanoate fires?
Use water spray or fog for small fires; for large fires, flood the area with water from a distance. Do not use straight streams.
What is the decomposition temperature of tert-Amyl peroxy-2-ethylhexanoate?
tert-Amyl peroxy-2-ethylhexanoate decomposes violently when rapidly heated to its critical temperature.
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