In the realm of material science and manufacturing, understanding the intricate properties and applications of chemical additives is fundamental to achieving optimal product performance and longevity. Antioxidant 2246 (CAS 119-47-1), a crucial phenolic antioxidant, has cemented its importance across numerous industrial sectors. This article aims to provide B2B professionals—procurement managers, R&D scientists, and formulators—with a comprehensive understanding of Antioxidant 2246, its key characteristics, diverse applications, and essential safety considerations.

Key Properties of Antioxidant 2246

Antioxidant 2246 is characterized by its chemical name, 2,2′-Methylenebis(6-tert-butyl-4-methylphenol), and its unique CAS number, 119-47-1. It typically presents as a white to off-white crystalline powder, with a melting point range of 120-130°C. Its molecular formula is C23H32O2, and it possesses a molecular weight of 340.5 g/mol. A significant advantage is its solubility in common organic solvents such as acetone, benzene, and ethanol, while remaining insoluble in water. This solubility profile makes it easy to incorporate into various formulations.

Mechanism of Action and Benefits

As a phenolic antioxidant, Antioxidant 2246 functions by effectively scavenging free radicals. These radicals are generated through exposure to heat, oxygen, and UV radiation, initiating degradation pathways in polymers and other organic materials. By neutralizing these reactive species, Antioxidant 2246 significantly slows down the oxidation process, thereby:

• Preventing discoloration and maintaining product aesthetics.
• Inhibiting physical property degradation, such as embrittlement and loss of tensile strength.
• Extending the overall service life of materials.

A notable feature is its non-polluting and non-coloring nature, making it a preferred choice for applications where visual integrity is critical, such as in white or light-colored plastics and rubbers. Its low volatility also ensures it remains within the polymer matrix during processing and use, providing sustained protection.

Diverse Industrial Applications

The versatility of Antioxidant 2246 is evident in its wide range of applications:

• Rubber Industry: It is extensively used in natural rubber, synthetic rubber (like SBR, BR), and latex formulations to enhance resistance to thermal oxidation and aging. This is vital for products such as tires, hoses, seals, and belts.
• Plastics Industry: It serves as a primary antioxidant in various plastics including Polyethylene (PE), Polypropylene (PP), Polystyrene (PS), Acrylonitrile Butadiene Styrene (ABS), Polyvinyl Chloride (PVC), and engineering plastics like Polyoxymethylene (POM) and Polyamides (PA). It protects these materials during processing and throughout their service life.
• Other Synthetic Materials: It finds application in synthetic fibers, adhesives, inks, pigments, and coatings, offering protection against degradation.
• Petroleum Products: It can also be used to enhance the oxidative stability of certain petroleum-based products.

Safety and Handling Considerations

While Antioxidant 2246 is considered to have low toxicity (oral LD₅₀ in rats is approximately 6500 mg/kg), proper handling procedures are essential in an industrial setting. As with any chemical powder, it is advisable to avoid inhalation of dust and to use appropriate personal protective equipment (PPE) such as gloves, safety glasses, and respiratory protection if dust is generated. Ensure good ventilation in work areas. Storage should be in a cool, dry, well-ventilated place, away from direct sunlight and incompatible materials. Always refer to the manufacturer's Safety Data Sheet (SDS) for detailed safety information.

Procurement and Supply Chain

For businesses looking to purchase Antioxidant 2246, partnering with a reliable manufacturer and supplier is crucial. We offer high-purity Antioxidant 2246 with consistent quality and competitive pricing, especially for bulk orders. Our commitment as a trusted supplier ensures that you receive products that meet rigorous standards, backed by technical support and efficient logistics. If you are seeking a dependable source for this vital additive, we encourage you to contact us for a quote and sample.