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Chemical Name: Butylated hydroxytoluene (BHT)
Chemical Synonyms: Antioxidant 264; 2,6-Di-tert-butyl-4-methylphenol; DBPC; BHT
CAS No.: 128-37-0
Molecular Formula: C₁₅H₂₄O
Molecular Weight: 220.35 g/mol
Butylated Hydroxytoluene (CAS 128-37-0), commonly known as BHT or Antioxidant 264, is a general-purpose hindered phenolic antioxidant widely used to inhibit oxidative degradation in plastics, rubbers, lubricants, fuels, and food-contact materials. It is cost-effective, highly compatible with most resins and oils, and compliant with FDA requirements for food-grade applications . Available in ≥99% purity with industrial and food-grade options to match your application.
Parameter | Specification |
|---|---|
Product Name | Butylated Hydroxytoluene (BHT) |
Synonyms | Antioxidant 264; 2,6-Di-tert-butyl-4-methylphenol; DBPC; BHT |
CAS Number | 128-37-0 |
Molecular Formula | C₁₅H₂₄O |
Molecular Weight | 220.35 g/mol |
EINECS No. | 204-881-4 |
Assay / Purity | ≥99% (typically ≥99.5% for premium grades) |
Appearance | White crystalline powder or granules |
Melting Point | ≥69 °C |
Free Phenol | ≤0.02% |
Grade | Industrial Grade / Food Grade |
Storage | Cool, dry, well-ventilated place, protected from moisture and heat |
Plastics & Rubber: Prevents aging and degradation in PE, PP, ABS, PS, polyester, and synthetic rubbers (SBR, NBR, CR, BR) .
Lubricants & Fuels: Stabilizes lubricating oils, gasoline, paraffin, and mineral oils; prevents acid value and viscosity increase .
Coatings & Adhesives: Antioxidant stabilizer for inks, adhesives, leather, and coating systems .
Food-Grade Plastics & Packaging: Suitable for food-contact polymers and packaging materials .
Edible Oils & Fats: Delays rancidity in animal and vegetable oils .
Feed Additives: Protects nutritional components in feed from oxidative decomposition .
Cost-Effective General-Purpose Antioxidant: Lower cost compared to specialty hindered phenols (e.g., 1010, 1076), ideal as a basic primary antioxidant for bulk materials .
Broad Compatibility: Excellent solubility and compatibility with most resins, rubbers, and oils, suitable for white and light-colored systems .
Food-Grade Compliance Available: Meets FDA requirements for food-contact applications .
Full Documentation: COA and MSDS available upon request.
Polyolefins (PE, PP): 0.01% – 1%
Rubber & Elastomers: 0.5% – 3%
Lubricants & Mineral Oils: 0.1% – 1%
Gasoline & Diesel: ~0.3%
Standard Packaging: 25 kg in PP woven bags or fiber drums with inner liners, or customized packaging upon request .
Storage Conditions: Store in a tightly closed container in a cool, dry, well-ventilated place. Protect from moisture, heat, and strong oxidizing agents.
Shelf Life: 24 months under proper storage conditions .
