Description

1,1,3,3-Tetramethylbutyl Peroxypivalate is a high-purity organic peroxide widely used as a polymerization initiator. Its primary value lies in its ability to efficiently generate free radicals at moderate temperatures, enabling controlled and efficient polymer synthesis. This compound is essential for manufacturers in the polymer and plastics industries, particularly for the production of PVC, polyolefins, and various specialty resins.

Application

• Polymerization Initiator for PVC: A key component in the suspension and mass polymerization of vinyl chloride to produce polyvinyl chloride (PVC) resins with controlled molecular weight and properties.
• Production of Low-Density Polyethylene (LDPE): Used as a free-radical initiator in high-pressure autoclave or tubular processes for LDPE manufacture.
• Synthesis of Acrylic Polymers: Facilitates the polymerization of methyl methacrylate (MMA) and other acrylates for sheets, molding powders, and coatings.
• Manufacture of Polystyrene (PS) & Expandable Polystyrene (EPS): Initiates the polymerization of styrene, crucial for producing general-purpose and high-impact polystyrene grades.
• Cross-linking Agent for Elastomers & Polyolefins: Employed to induce cross-linking in rubber and polyethylene, enhancing thermal and mechanical stability.
• Curing Agent for Unsaturated Polyester Resins: Acts as a source of free radicals to initiate the curing reaction in fiberglass-reinforced plastics (FRP) and composites.
• Modifier for Polymer Properties: Used in controlled radical polymerization to tailor polymer architecture, branching, and end-group functionality.

Basic Information

Product Name	1,1,3,3-Tetramethylbutyl Peroxypivalate
CAS No.	22288-41-1
Molecular Formula	C13H26O3
Molecular Weight	230.35 g/mol
Synonyms	Peroxypivalic Acid 1,1,3,3-Tetramethylbutyl Ester; tert-Octyl Peroxypivalate; tert-Butyl Peroxyneodecanoate (related); Trigonox 423; Luperox 26M50; Peroyl ND; tert-Octyl Peroxyneodecanoate (common trade name); 2,4,4-Trimethylpentan-2-yl Neodecanoate (alternative IUPAC)
EINECS	244-908-7

Quality Control

Our 1,1,3,3-Tetramethylbutyl Peroxypivalate is manufactured under stringent quality management systems. Each batch undergoes rigorous analytical testing to ensure it meets precise specifications for purity, active oxygen content, and impurity profiles. Certificates of Analysis (COA) documenting all critical parameters are provided with every shipment to guarantee traceability and compliance with your process requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, well-ventilated area away from heat, sparks, and open flames. Maintain storage temperature below 30°C (86°F). Keep away from reducing agents, strong acids, bases, and other incompatible materials. This product is light-sensitive (store away from light) and a strong oxidizer; observe all relevant safety and handling protocols for organic peroxides.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Assay (Active Oxygen)	≥ 6.95 %
Purity (by GC)	≥ 98.0 %
Identification (IR)	Conforms
Density (at 20°C)	0.85 - 0.87 g/cm³
Refractive Index (nD20)	1.420 - 1.425
Water Content (Karl Fischer)	≤ 0.1 %
Acidity (as Peroxypivalic Acid)	≤ 0.5 %

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.