Description

B-325 CAS NO 7368-12-9 is a high-purity chemical compound, specifically identified as 2,2'-Azobis(2-methylpropionitrile) (AIBN), a widely used free-radical polymerization initiator. Its consistent quality and reliable decomposition profile are critical for controlling reaction kinetics and achieving desired polymer properties in industrial synthesis. This product is essential for manufacturers in the polymer, plastics, and specialty chemical industries seeking precise and efficient initiation for polymerization processes.

Application

• Polymer Synthesis: Primary use as a free-radical initiator for the production of acrylics, polyvinyl chloride (PVC), polystyrene, and other vinyl polymers.
• Plastics Manufacturing: Used in the bulk and suspension polymerization processes for creating various plastic resins and molding compounds.
• Foam Production: Acts as a blowing agent in the manufacture of expanded plastics and rubber foams.
• Adhesive & Coating Formulation: Employed in the curing and cross-linking of resins for high-performance adhesives, sealants, and coatings.
• Organic Synthesis: Serves as a radical source in laboratory-scale and industrial organic synthesis reactions.
• Rubber Vulcanization: Utilized in specific cross-linking processes for synthetic rubbers.

Basic Information

Product Name	B-325 CAS NO 7368-12-9
CAS No.	7368-12-9
Molecular Formula	C8H12N4
Molecular Weight	164.21 g/mol
Synonyms	2,2'-Azobis(2-methylpropionitrile); AIBN; Azobisisobutyronitrile; 2,2'-Azobisisobutyronitrile; 2,2'-Azobis(isobutyronitrile); Porofor 57; Vazo 64; 2,2'-Dicyano-2,2'-azopropane
EINECS	230-924-1

Quality Control

Our B-325 is manufactured under stringent quality management systems to ensure batch-to-batch consistency and high purity. Each lot undergoes comprehensive analytical testing, including assay, purity profiling, and impurity screening. Certificates of Analysis (COA) detailing all test results are provided and confirm compliance with relevant industry specifications. We support our clients' quality assurance needs with full traceability and documentation.

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). This material is thermally sensitive and may decompose if exposed to elevated temperatures or direct heat sources. Keep away from incompatible materials such as strong acids, bases, and oxidizing agents. Follow all local and international regulations for hazardous material storage.

Specification

Item	Specification
Appearance	White crystalline powder
Identification (IR)	Conforms to standard
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.