Product Introduction of Antioxidant 300

Antioxidant 300 is a typical thiodiphenol antioxidant. Below is a detailed introduction to this product:

I. Basic Information

• Chinese Name: Antioxidant 300
• English Name: Antioxidant 300
• Alternative Name: 4,4'-Thiobis(6-tert-butyl-3-methylphenol)
• Chemical Formula: C22H30O2S
• Molecular Weight: 358.54 (also reported as 358.5374)
• CAS Registry Number: 96-69-5
• EINECS Registry Number: 202-525-2

II. Physical Properties

• Appearance: White or light yellow powder, also described as white to tan powder or white crystalline powder.
• Melting Point: 161~164°C
• Density: 1.06~1.12 (at 25°C)
• Solubility: Soluble in organic solvents such as benzene, acetone, ethanol, monochlorobenzene, and carbon tetrachloride; insoluble in water.

III. Chemical Properties and Functions

• Dual Functionality: Due to its unique structure, Antioxidant 300 functions as both a free radical terminator and a hydroperoxide decomposer.
• Synergistic Effect: It exhibits excellent synergistic effects when used in conjunction with carbon black, which is unparalleled by commonly used antioxidants.

IV. Applications

• Rubber and Plastics: As a highly efficient primary antioxidant, it is suitable for polyolefins, polyesters, polystyrene, ABS resins, and polyvinyl chloride, and is also applicable to white, bright-colored, or transparent products.
• Cables and Wires: As an antioxidant for polyethylene cable and wire materials, its effects are particularly prominent, and it is widely adopted in the domestic and international cable and wire industries.
• Food Packaging: When used as an antioxidant for polyethylene food packaging materials, its usage limits are clearly specified, such as 0.05% for LDPE and 0.25% for HDPE.
• Other Applications: It can also be used in latex products, ABS resins, as a polymerization and processing stabilizer for PP, EPDM, and polybutadiene, as an anti-skinning agent for hot melt adhesives, and to prevent core burning in polyurethane.

V. Product Advantages

• Maintaining Physical Properties: Using Antioxidant 300 in polyethylene can better maintain the raw material's physical properties, such as tensile strength, elongation, and melt index.
• Preserving Electrical Properties: It effectively preserves the electrical properties of polyethylene and exhibits high thermal stability.
• Enhancing Weather Resistance: It enhances the weather resistance of products, and its anti-aging effect is four times that of common anti-aging agents.
• Low Volatility: It has lower volatility compared to other commonly used antioxidants.

VI. Packaging and Storage

• Packaging: It is typically packaged in paper drums lined with plastic bags, with a net weight of 25kg/drum. Other packaging sizes, such as 20kg/carton, are also available according to customer requirements.
• Storage: It is chemically stable and has no special storage requirements, but it should be stored away from high temperatures and humidity.