Description

2,2''-Azobisbutyronitrile (CAS NO 66205-07-0) is a highly efficient, low-temperature azo initiator widely used in free-radical polymerization processes. Its primary value lies in its ability to decompose at moderate temperatures to generate free radicals, initiating polymer chain growth with excellent control and efficiency. This compound is essential for manufacturers in the polymer, plastics, and specialty chemical industries, particularly for producing acrylics, polyvinyl chloride (PVC), and other vinyl-based polymers.

Application

• Polymerization Initiator: A key free-radical initiator for the bulk, suspension, and solution polymerization of vinyl monomers such as methyl methacrylate (MMA), styrene, and acrylonitrile.
• Plastics & Resins Manufacturing: Used in the production of polyvinyl chloride (PVC), acrylic resins (PMMA), and polystyrene, contributing to controlled molecular weight and polymer properties.
• Foaming Agent: Acts as a blowing agent in the manufacture of expanded plastics and rubber products due to its gas-releasing decomposition.
• Crosslinking Agent: Employed in the curing and crosslinking of unsaturated polyester resins and other thermosetting polymers.
• Adhesive & Coating Formulations: Serves as an initiator in UV-curable inks, coatings, and adhesive systems that require low-temperature curing.
• Organic Synthesis: Utilized in laboratory and industrial-scale organic synthesis to initiate radical reactions for creating carbon-carbon bonds.

Basic Information

Product Name	2,2''-Azobisbutyronitrile
CAS No.	66205-07-0
Molecular Formula	C8H12N4
Molecular Weight	164.21 g/mol
Synonyms	AIBN; Azobisisobutyronitrile; 2,2'-Azobis(2-methylpropionitrile); 2,2'-Azobisisobutyronitrile; 2,2'-Azodiisobutyronitrile; Vazo 64; Porofor N; 1,1'-Azobis(cyclohexanecarbonitrile) (related); Azoisobutyronitrile
EINECS	266-245-9

Quality Control

Our 2,2''-Azobisbutyronitrile is manufactured under strict quality management systems to ensure batch-to-batch consistency and high purity. Each lot undergoes comprehensive analytical testing, including assay, melting point determination, and impurity profiling. A Certificate of Analysis (COA) detailing all test results is provided with every shipment to guarantee compliance with your technical requirements and industry standards.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated place at temperatures between 2°C and 8°C (refrigerated) to maintain stability and extend shelf life. This product is easily oxidized and should be handled under an inert atmosphere when appropriate. Keep away from heat, sparks, open flames, and incompatible materials.

Specification

Item	Specification
Appearance	White crystalline powder
Identification (IR)	Conforms
Assay (HPLC)	≥ 98.0 %
Melting Point	102°C - 105°C
Loss on Drying	≤ 0.5 %
Heavy Metals (as Pb)	≤ 10 ppm
Solubility (in Acetone)	Clear, colorless solution

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