Description

2,2'-Azobis(2-Methylpropionitrile) is a widely used, highly efficient free-radical polymerization initiator. Its primary value lies in its ability to decompose at moderate temperatures to generate nitrogen gas and reactive free radicals, which are essential for initiating and driving polymerization reactions. This compound is a critical raw material for manufacturers in the polymer, plastics, and specialty chemical industries, particularly for producing acrylic polymers, polystyrene, and other vinyl-based resins. Its predictable decomposition profile ensures consistent polymer quality and process control.

Application

• Polymerization Initiator: The primary application is as a free-radical initiator for the bulk, solution, and suspension polymerization of vinyl monomers like methyl methacrylate (MMA), styrene, and acrylonitrile.
• Acrylic Resin Production: Essential for manufacturing polymethyl methacrylate (PMMA) sheets, molding powders, and acrylic-based adhesives and coatings.
• Foaming Agent: Used as a blowing agent in the production of foamed plastics and rubber, where the nitrogen gas released upon decomposition creates a cellular structure.
• Crosslinking Agent: Employed to induce crosslinking in specific polymer systems to enhance thermal and mechanical properties.
• Chemical Synthesis: Utilized in organic synthesis to facilitate radical-mediated reactions for creating complex molecules.
• Adhesive & Sealant Formulation: A key component in the curing systems of certain anaerobic and acrylic-based industrial adhesives.

Basic Information

Product Name	2,2'-Azobis(2-Methylpropionitrile)
CAS No.	78-67-1
Molecular Formula	C8H12N4
Molecular Weight	164.21 g/mol
Synonyms	AIBN; Azobisisobutyronitrile; 2,2'-Azobis(isobutyronitrile); 2,2'-Azodiisobutyronitrile; Azobis(isobutyronitrile); 2,2'-Dicyano-2,2'-azopropane; Porofor® N; Vazo® 64; 2-Methylpropionitrile, 2,2'-azobis-
EINECS	201-132-3

Quality Control

Our 2,2'-Azobis(2-Methylpropionitrile) is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing to ensure it meets precise specifications for purity, activity, and safety. Key parameters such as assay, moisture content, and solvent residues are controlled. Certificates of Analysis (COA) documenting all test results are provided with every shipment to guarantee traceability and compliance with your quality requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at temperatures below 25°C (77°F). Due to its properties of being light-sensitive and easily oxidized, it is recommended to store the material under an inert atmosphere (e.g., nitrogen) for long-term stability. Keep away from heat, sparks, open flames, and incompatible materials. Follow all local and international regulations for hazardous materials storage.

Specification

Item	Specification
Appearance	White crystalline powder
Identification (IR)	Conforms
Assay (HPLC)	≥ 98.0 %
Melting Point	102 - 105 °C
Loss on Drying	≤ 0.5 %
Residue on Ignition	≤ 0.1 %
Heavy Metals (as Pb)	≤ 10 ppm

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